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De Silva DNT, Dais TN, Jameson GB, Davies CG, Jameson GNL, Plieger PG. [Fe(µ 2-OH) 6] 3- Linked Fe 3O Triads: Mössbauer Evidence for Trigonal µ 3-O 2- or µ 3-OH - Groups in Bridged versus Unbridged Complexes. Molecules 2024; 29:3218. [PMID: 38999170 PMCID: PMC11243536 DOI: 10.3390/molecules29133218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/14/2024] Open
Abstract
The syntheses, coordination chemistry, and Mössbauer spectroscopy of hepta-iron(III) complexes using derivatised salicylaldoxime ligands from two categories; namely, 'single-headed' (H2L) and 'double-headed' (H4L) salicylaldoximes are described. All compounds presented here share a [Fe3-µ3-O] core in which the iron(III) ions are µ3-hydroxo-bridged in the complex C1 and µ3-oxo-bridged in C2 and C3. Each compound consists of 2 × [Fe3-µ3-O] triads that are linked via a central [Fe(µ2-OH)6]3- ion. In addition to the charge balance and microanalytical evidence, Mössbauer measurements support the fact that the triads in C1 are µ3-OH bridged and are µ3-O bridged in C2 and C3.
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Affiliation(s)
- D. Nirosha T. De Silva
- School of Natural Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Tyson N. Dais
- School of Natural Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Geoffrey B. Jameson
- School of Natural Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Casey G. Davies
- Department of Chemistry, University of Otago, Dunedin 9016, New Zealand; (C.G.D.); (G.N.L.J.)
| | - Guy N. L. Jameson
- Department of Chemistry, University of Otago, Dunedin 9016, New Zealand; (C.G.D.); (G.N.L.J.)
- Bio21 Molecular Sciences and Biotechnology Institute, The University of Melbourne, Parkville 3052, VIC, Australia
| | - Paul G. Plieger
- School of Natural Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
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2
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Blackman AG, Gahan LR. Metal-coordinated Hydroxide as a Nucleophile: a Brief History. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Allan G. Blackman
- Centre for Biomedical and Chemical Sciences; School of Science; Auckland University of Technology; Private Bag 92006 Auckland New Zealand
| | - Lawrence R. Gahan
- School of Chemistry and Molecular Biosciences; The University of Queensland; Brisbane Queensland Australia
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3
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Syntheses, structural, spectroscopic and magnetic properties of polynuclear Fe(III) complexes containing N and O donor ligands. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.01.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Dutta AK, Maji SK, Dutta S, Robert Lucas C, Adhikary B. Synthesis, structural and magnetic properties of oxo-, chloroacetato-bridged tetra-nuclear iron(III) complex. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.06.062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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6
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Alberto ME, Marino T, Russo N, Sicilia E, Toscano M. The performance of density functional based methods in the description of selected biological systems and processes. Phys Chem Chem Phys 2012; 14:14943-53. [DOI: 10.1039/c2cp41836c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Alberto ME, Marino T, Ramos MJ, Russo N. Atomistic details of the Catalytic Mechanism of Fe(III)−Zn(II) Purple Acid Phosphatase. J Chem Theory Comput 2010; 6:2424-33. [DOI: 10.1021/ct100187c] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Marta E. Alberto
- Dipartimento di Chimica, Università della Calabria,Via P. Bucci, cubo 14c, 87036 Arcavacata di Rende (CS), Centro di Calcolo ad Alte Prestazioni per Elaborazioni Parallele e Distribuite−Centro d’Eccellenza MIUR, Italy and REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Tiziana Marino
- Dipartimento di Chimica, Università della Calabria,Via P. Bucci, cubo 14c, 87036 Arcavacata di Rende (CS), Centro di Calcolo ad Alte Prestazioni per Elaborazioni Parallele e Distribuite−Centro d’Eccellenza MIUR, Italy and REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Maria J. Ramos
- Dipartimento di Chimica, Università della Calabria,Via P. Bucci, cubo 14c, 87036 Arcavacata di Rende (CS), Centro di Calcolo ad Alte Prestazioni per Elaborazioni Parallele e Distribuite−Centro d’Eccellenza MIUR, Italy and REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Nino Russo
- Dipartimento di Chimica, Università della Calabria,Via P. Bucci, cubo 14c, 87036 Arcavacata di Rende (CS), Centro di Calcolo ad Alte Prestazioni per Elaborazioni Parallele e Distribuite−Centro d’Eccellenza MIUR, Italy and REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
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Gahan LR, Smith SJ, Neves A, Schenk G. Phosphate Ester Hydrolysis: Metal Complexes As Purple Acid Phosphatase and Phosphotriesterase Analogues. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900231] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Lawrence R. Gahan
- School of Chemistry and Molecular BioSciences, The University of Queensland, 4072 Brisbane, Australia
| | - Sarah J. Smith
- School of Chemistry and Molecular BioSciences, The University of Queensland, 4072 Brisbane, Australia
| | - Ademir Neves
- Laboratorio de Bioinorgânica e Cristalografica, Departamento de Química, Universidade Federal de Santa Catarina, 88040‐900, Florianópolis, SC, Brazil
| | - Gerhard Schenk
- School of Chemistry and Molecular BioSciences, The University of Queensland, 4072 Brisbane, Australia
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9
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Kaida R, Hayashi T, Kaneko TS. Purple acid phosphatase in the walls of tobacco cells. PHYTOCHEMISTRY 2008; 69:2546-51. [PMID: 18762304 DOI: 10.1016/j.phytochem.2008.07.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2008] [Revised: 07/10/2008] [Accepted: 07/18/2008] [Indexed: 05/09/2023]
Abstract
Purple acid phosphatase isolated from the walls of tobacco cells appears to be a 220kDa homotetramer composed of 60kDa subunits, which is purple in color and which contains iron as its only metal ion. Although the phosphatase did not require dithiothreitol for activity and was not inhibited by phenylarsine oxide, the enzyme showed a higher catalytic efficiency (k(cat)/K(m)) for phosphotyrosine-containing peptides than for other substrates including p-nitrophenyl-phosphate and ATP. The phosphatase formed as a 120kDa dimer in the cytoplasm and as a 220kDa tetramer in the walls, where Brefeldin A blocked its secretion during wall regeneration. According to our double-immunofluorescence labeling results, the enzyme might be translocated through the Golgi apparatus to the walls at the interphase and to the cell plate during cytokinesis.
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Affiliation(s)
- Rumi Kaida
- Department of Chemical and Biological Sciences, Japan Women's University, 2-8-1 Mejirodai, Bunkyo-ku, Tokyo 112-8681, Japan
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Mitić N, Smith SJ, Neves A, Guddat LW, Gahan LR, Schenk G. The catalytic mechanisms of binuclear metallohydrolases. Chem Rev 2007; 106:3338-63. [PMID: 16895331 DOI: 10.1021/cr050318f] [Citation(s) in RCA: 352] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Natasa Mitić
- School of Molecular and Microbial Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
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11
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Que L, True AE. Dinuclear Iron- and Manganese-Oxo Sites in Biology. PROGRESS IN INORGANIC CHEMISTRY 2007. [DOI: 10.1002/9780470166390.ch3] [Citation(s) in RCA: 213] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Wang Y, Andersson G. Expression and proteolytic processing of mammalian purple acid phosphatase in CHO-K1 cells. Arch Biochem Biophys 2007; 461:85-94. [PMID: 17324376 DOI: 10.1016/j.abb.2007.01.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2006] [Revised: 01/12/2007] [Accepted: 01/22/2007] [Indexed: 10/23/2022]
Abstract
Rat recombinant purple acid phosphatase (PAP) stably expressed in fibroblast-like CHO-K1 cells was purified and characterized with respect to post-translational modifications such as N-glycosylation and proteolytic processing in order to elucidate subcellular and molecular pathways for proteolytic activation. In these cells, proteolytically processed PAP was more abundant than the monomeric form. PAP-transfected CHO-K1 cells were expressing active cathepsin K intracellularly, which was partially co-localized with PAP. However, neither cathepsin K nor trypsin digestion of the purified monomeric PAP in vitro did result in a two-subunit form with kinetic and electrophoretic properties resembling the endogenous cellular two-subunit form. Treatment of PAP-transfected CHO-K1 cells with the cysteine proteinase inhibitor E-64 suggested that only a minor fraction of secreted PAP is processed intracellularly by cysteine proteinases. These data do not support a dominant or critical role for cathepsins or trypsin-like serine proteinases in the proteolytic activation of PAP in CHO-K1 cells, implicating yet unidentified proteinases in the proteolytic processing of both intracellular and secreted PAP in this cell line.
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Affiliation(s)
- Yunling Wang
- Karolinska Institutet, Department of Laboratory Medicine, Division of Pathology, Karolinska University Hospital, S-141 86 Huddinge, Sweden
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13
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Prodius D, Mereacre V, Sergiu S, Gdaniec M, Simonov Y, Sorace L, Caneschi A, Stanica N, Geru I, Turta C. The Synthesis and Study of Tetranuclear Cluster [Fe4O2(CCl3COO)8(THF)2(DMF)(H2O)]⋅THF. CHEMISTRY JOURNAL OF MOLDOVA 2006. [DOI: 10.19261/cjm.2006.01(1).09] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The novel bis(μ3-oxo) tetranuclear trichloracetate cluster, [Fe4O2(CCl3COO)8(THF)2(DMF)(H2O)]⋅THF (1), has been synthesised and subsequently characterised by X-ray structure analysis, magnetic measurements and infra red (IR). The structure of cluster is “butterfly” type. The Fe···Fe separation has the value of 2.883(1) - 3.441(7) Å. The coordination number of iron (III) is 6. Magnetic studies reveal the presence of an antiferromagnetic exchange in the parallelogram skeletons of the tetranuclear species. Using the spin Hamiltonian H = -2Jwb(Ŝ1Ŝ2 + Ŝ2Ŝ3 + Ŝ3Ŝ4 + Ŝ4Ŝ1) - 2JbbŜ2Ŝ4v+ gμβ(Ŝ1z + Ŝ2z +Ŝ3z + Ŝ4z)B, the fitting parameters Jbb = - 14.3 cm-1, Jwb = - 32.1 cm-1 , g = 2.07, ρparam. -5 impur. = 4.2 %, ΘCurie-Weiss const. = -0.5 K and R = 6.8·10 were obtained.
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14
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Chao TY, Lee SH, Chen MM, Neustadt DH, Chaudhry UA, Yam LT, Janckila AJ. Development of immunoassays for serum tartrate-resistant acid phosphatase isoform 5a. Clin Chim Acta 2005; 359:132-40. [PMID: 15993395 DOI: 10.1016/j.cccn.2005.03.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2004] [Revised: 03/15/2005] [Accepted: 03/21/2005] [Indexed: 11/16/2022]
Abstract
BACKGROUND Serum tartrate-resistant acid phosphatase (TRACP) consists of 2 structurally related isoforms, TRACP 5a and 5b. TRACP 5b is from bone-resorbing osteoclasts. TRACP 5a may be a macrophage product of inflammation. We used a novel antibody to TRACP 5a to standardize immunoassays for serum TRACP 5a activity and protein. METHODS Biotinylated anti-TRACP antibodies were used to immobilize serum TRACP isoforms. TRACP activity was measured using 4-nitrophenyl phosphate as substrate. TRACP 5a protein was measured with an independent peroxidase-conjugated anti-TRACP antibody. Immunoassays were standardized for linearity of serum dose response, sensitivity and precision. Reference ranges for TRACP 5a were established from serum of 50 healthy males and 50 healthy age-matched females. Serum TRACP 5a activity and protein were determined in 29 cases of rheumatoid arthritis. RESULTS Serum matrix interference in both TRACP 5a assays required dilution to 10% serum to approach linearity. Intra-assay and inter-assay CV% were <10%. Mean serum TRACP 5a activity and protein were significantly higher in healthy men than women. There was a slight, but significant age related increase in both serum TRACP 5a and 5b among females, but not males, from age 20 to 70 years. TRACP 5a activity was positively correlated to TRACP 5a protein in healthy sera. Neither TRACP 5a activity nor protein was correlated strongly to TRACP-5b activity. TRACP 5a protein was significantly increased in 8/29 RA sera, whereas TRACP 5a and 5b activities were not. TRACP 5a activity and protein were not significantly correlated in RA sera. CONCLUSIONS Although TRACP 5a and 5b are related biosynthetically, their circulating levels in healthy humans were independent, suggesting differential regulation of expression. In chronic diseases, increased TRACP 5a may represent pathological processes of inflammation unrelated to bone metabolism.
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Affiliation(s)
- Tsu-Yi Chao
- Division of Hematology and Oncology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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15
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Zhu H, Qian W, Lu X, Li D, Liu X, Liu K, Wang D. Expression patterns of purple acid phosphatase genes in Arabidopsis organs and functional analysis of AtPAP23 predominantly transcribed in flower. PLANT MOLECULAR BIOLOGY 2005; 59:581-94. [PMID: 16244908 DOI: 10.1007/s11103-005-0183-0] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2005] [Accepted: 06/23/2005] [Indexed: 05/05/2023]
Abstract
Purple acid phosphatases (PAPs) are metallo-phosphoesterases. Their expression and function have not been systematically investigated in higher plants. In this work, we compared the transcript levels of 28 Arabidopsis PAP (AtPAP) genes in five Arabidopsis organs. The 28 members, although differed in their expression patterns in vegetative organs, were all transcribed in flower. Furthermore, the transcription of seven members (AtPAPs 6, 11, 14, 19, 23, 24 and 25) occurred predominantly in the flower. To begin dissecting the role of AtPAP genes in flower development, further expression and functional analyses were conducted using AtPAP23. Histochemical staining of transgenic plants expressing AtPAP23 promoter-beta-glucuronidase (GUS) gene construct revealed that AtPAP23 transcription was strong in flower apical meristems, but became restricted to petals and anther filaments in fully developed flower. A GST (glutathione S-transferase) fusion protein of AtPAP23 (GST:AtPAP23) was expressed in bacterial cells, and was found to contain significant amounts of Fe and Mn (whereas the control GST protein contained none). In biochemical tests, GST:AtPAP23 showed typical acid phosphatase activities. The fusion protein was also highly active on phosphoserine, but not phosphotyrosine. Despite its highly specific expression pattern and the demonstrated biochemical function of its protein product, the RNAi (RNA interference), T-DNA knock-out and overexpression lines of AtPAP23 were indistinguishable from wild type plants in the development of flower (or other organs). Interestingly, the Fe and Mn contents were found significantly increased in AtPAP23 overexpression lines, which may offer a new direction for further functional studies of AtPAPs in Arabidopsis.
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Affiliation(s)
- Huifen Zhu
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Datun Road, 100101 Beijing, Chaoyang District, China
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Truong NT, Naseri JI, Vogel A, Rompel A, Krebs B. Structure–function relationships of purple acid phosphatase from red kidney beans based on heterologously expressed mutants. Arch Biochem Biophys 2005; 440:38-45. [PMID: 16009331 DOI: 10.1016/j.abb.2005.05.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2005] [Revised: 05/23/2005] [Accepted: 05/23/2005] [Indexed: 11/27/2022]
Abstract
Purple acid phosphatases are binuclear metalloenzymes, which catalyze the conversion of orthophosphoric monoesters to alcohol and orthophosphate. The enzyme from red kidney beans is characterized with a Fe(III)-Zn(II) active center. So far, the reaction mechanisms postulated for PAPs assume the essentiality of two amino acids, residing near the bimetallic active site. Based on the amino acid sequence of kidney bean PAP (kbPAP), residues H296 and H202 are believed to be essential for catalytic function of the enzyme. In the present study, the role of residue H202 has been elucidated. Mutants H202A and H202R were prepared by site-directed mutagenesis and expressed in baculovirus-infected insect cells. Based on kinetic studies, residue H202 is assumed to play a role in stabilizing the transition state, particularly in charge compensation, steric positioning of the substrate, and facilitating the release of the product by protonating the substrate leaving groups. The study confirmed the essentiality and elucidates the functional role of H202 in the catalytic mechanism of kbPAP.
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Affiliation(s)
- Ngoc Thanh Truong
- Institut für Biochemie, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str. 2, 48149 Münster, Germany
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Jin-Lei T, Ming-Jin X, Shi-Ping Y, Dai-Zheng L, Zong-Hui J, Peng C. Synthesis and Crystal Structures of Two Dinuclear Iron(III) Complexes with Tripodal Ligands. CHINESE J CHEM 2005. [DOI: 10.1002/cjoc.200590525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Horn A, Vencato I, Bortoluzzi AJ, Hörner R, Silva RAN, Spoganicz B, Drago V, Terenzi H, de Oliveira MC, Werner R, Haase W, Neves A. Synthesis, crystal structure and properties of dinuclear iron(III) complexes containing terminally coordinated phenolate/H2O/OH− groups as models for purple acid phosphatases: efficient hydrolytic DNA cleavage. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2004.09.021] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zambonelli C, Roberts MF. An iron-dependent bacterial phospholipase D reminiscent of purple acid phosphatases. J Biol Chem 2003; 278:13706-11. [PMID: 12519726 DOI: 10.1074/jbc.m210363200] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Recombinant phospholipase D (PLD) from Streptomyces chromofuscus (scPLD) has been characterized using colorimetric assays, spectroscopic investigations, and site-directed mutagenesis. scPLD, which shows phosphodiesterase activity toward a wide variety of phospholipids and phosphatase activity toward p-nitrophenyl phosphate, exhibits a visible absorption band with lambda(max) at 570 nm. Metal ion analysis performed by inductively coupled plasma mass spectroscopy shows the presence of approximately 1 equivalent of iron, 0.27 equivalent of manganese, and 0.1 equivalent of zinc per mole of protein as isolated. The metal ion content coupled with the visible absorption feature is compatible with the presence of Fe(3+)-tyrosinate coordination. When scPLD was dialyzed against solutions containing Mn(2+), Zn(2+) or EDTA, the Fe(3+) content was reduced to variable extents, and the residual specific activity correlated well with the residual iron content. Sequence homology with metal ion binding motifs in known alkaline phosphatases and purple acid phosphatase from red kidney bean shows that most of the residues involved in metal ion coordination are conserved among all the sequences considered. Mutation of some of these conserved residues (C123A, D151A, Y154F, and H391A) produced enzymes lacking iron with dramatically reduced PLD activity but little change in secondary structure or ability to bind to small unilamellar vesicles of phosphatidylcholine (with Ba(2+)) or phosphatidic acid. We suggest that scPLD is a member of a family of phosphodiesterase/phosphatases with structural and mechanistic similarity to iron-dependent purple acid phosphatases.
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Affiliation(s)
- Carlo Zambonelli
- Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
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Kaija H, Alatalo SL, Halleen JM, Lindqvist Y, Schneider G, Väänänen HK, Vihko P. Phosphatase and oxygen radical-generating activities of mammalian purple acid phosphatase are functionally independent. Biochem Biophys Res Commun 2002; 292:128-32. [PMID: 11890682 DOI: 10.1006/bbrc.2002.6615] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bone-resorbing osteoclasts and activated macrophages express large amounts of tartrate-resistant acid phosphatase (TRAP), an iron-containing enzyme with unknown biological function. We studied acid phosphatase (AcP) and reactive oxygen species (ROS)-generating activities of recombinant rat TRAP. pH optimum was 4.5 for AcP activity and 6.5 for ROS-generating activity. Replacement of His113 and His216 by site-directed mutagenesis severely inhibited AcP activity, but had no significant effects on ROS-generating activity. Substrate specificity was not affected by the mutations. These results suggest that AcP and ROS-generating activities of TRAP are functionally independent.
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Affiliation(s)
- Helena Kaija
- Biocenter Oulu, Research Center for Molecular Endocrinology, Oulu University Hospital, University of Oulu, FIN-90014 Finland
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Horn A, Neves A, Bortoluzzi AJ, Drago V, Ortiz W. Crystal structure and magnetic properties of a new tetranuclear iron (III) complex with asymmetric iron coordination as a model for polynuclear iron proteins. INORG CHEM COMMUN 2001. [DOI: 10.1016/s1387-7003(01)00156-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lång P, Schultzberg M, Andersson G. Expression and distribution of tartrate-resistant purple acid phosphatase in the rat nervous system. J Histochem Cytochem 2001; 49:379-96. [PMID: 11181741 DOI: 10.1177/002215540104900312] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Tartrate-resistant purple acid phosphatase (TRAP) of osteoclasts and certain cells of the monocyte-macrophage lineage belongs to the family of purple acid phosphatases (PAPs). We provide here evidence for TRAP/PAP expression in the central and peripheral nervous systems in the rat. TRAP/PAP protein was partially purified and characterized from the trigeminal ganglion, brain, and spinal cord. The TRAP activity (U/mg tissue) in these tissues was about 10-20 times lower than in bone. Reducing agents, e.g. ascorbate and ferric iron, increased the TRAP activity from the neural tissues (nTRAP) and addition of oxidizing agents completely inactivated both bone and nTRAP. The IC(50) for three known oxyanion inhibitors of TRAP/PAP was similar for bone and nTRAP with the same rank order of potency (molybdate > tungstate > phosphate). This indicates that the redox-sensitive binuclear iron center characteristic of mammalian PAPs is present also in nTRAP. Western blots of partially purified nTRAP revealed a band with the expected size of 35 kD. The expression of TRAP in the trigeminal ganglion, brain, and spinal cord was confirmed at the mRNA level by RT-PCR. In situ hybridization histochemistry demonstrated TRAP mRNA expression in small ganglion cells of the trigeminal ganglion, in alpha-motor neurons of the ventral spinal cord, and in Purkinje cells of the cerebellum. TRAP-like immunoreactivity was encountered in the cytoplasm of neuronal cell bodies in specific areas of both the central and the peripheral nervous system. Together, the data demonstrate that active TRAP/PAP is expressed in certain parts of the rat nervous system.
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Affiliation(s)
- P Lång
- Division of Pathology, Karolinska Institutet, Huddinge University Hospital, Huddinge, Sweden
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Setyawati IA, Rettig SJ, Orvig C. Cationic iron(III) complex with a hexadentate N2,N'2',O2-aminopyridylphenolate ligand. CAN J CHEM 1999. [DOI: 10.1139/v99-202] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Iron(III) complexation with potentially hexadentate H2bbpen (N,N'-bis(2-hydroxybenzyl)-N,N'-bis(2-methylpyridyl)ethylenediamine) was studied. The resulting monocationic complex, [Fe(bbpen)]+ as its NO3- and PF6- salts, was characterized by infrared spectroscopy, mass spectrometry, elemental analyses, cyclic voltammetry, and X-ray crystallographic analysis. Crystals of [Fe(bbpen)]NO3·CH3OH are monoclinic, space group P21/c, a = 10.2640(13), b = 14.7526(10), c = 18.3172(5) Å, β = 97.904(1)°, and Z = 4. The structure was solved by heavy-atom Patterson methods and refined to an R factor of 0.039 for 3526 reflections with I > 3σ(I). The structure of the [Fe(bbpen)]+ cation showed that the ligand is bound in a hexadentate fashion to the central Fe(III) ion, resulting in a distorted octahedral geometry. Magnetic susceptibility measurements indicated the presence of a high-spin Fe(III) ion, and the UV-vis spectrum of [Fe(bbpen)]NO3 exhibits absorption maxima, λmax, at 575 nm (ε = 5400 M-1 cm-1), 323 (8900), and 275 (13 500). The cyclic voltammogram of [Fe(bbpen)]NO3 showed a quasi-reversible, one-electron process corresponding to [FeIII(bbpen)]+ + e- <_> [FeII(bbpen)] at -0.47 V vs. SCE.Key words: cationic, iron(III), phenolate, pyridyl, hexadentate.
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Durmus A, Eicken C, Spener F, Krebs B. Cloning and comparative protein modeling of two purple acid phosphatase isozymes from sweet potatoes (Ipomoea batatas). BIOCHIMICA ET BIOPHYSICA ACTA 1999; 1434:202-9. [PMID: 10556574 DOI: 10.1016/s0167-4838(99)00176-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The sequence of cDNA fragments of two isozymes of the purple acid phosphatase from sweet potato (spPAP1 and spPAP2) has been determined by 5' and 3' rapid amplification of cDNA ends protocols using oligonucleotide primers based on amino acid information. The encoded amino acid sequences of these two isozymes show an equidistance of 72-77% not only to each other, but also to the primary structure of the purple acid phosphatase from red kidney bean (kbPAP). A three-dimensional model of the active site has been constructed for spPAP2 on the basis of the kbPAP crystallographic structure that helps to explain the reported differences in the visible and EPR spectra of spPAP2 and kbPAP.
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Affiliation(s)
- A Durmus
- Anorganisch-Chemisches Institut, Universität Münster, Wilhelm-Klemm-Strasse 8, 48149, Münster, Germany
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25
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del Pozo JC, Allona I, Rubio V, Leyva A, de la Peña A, Aragoncillo C, Paz-Ares J. A type 5 acid phosphatase gene from Arabidopsis thaliana is induced by phosphate starvation and by some other types of phosphate mobilising/oxidative stress conditions. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 1999; 19:579-89. [PMID: 10504579 DOI: 10.1046/j.1365-313x.1999.00562.x] [Citation(s) in RCA: 190] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Low phosphorous availability, a common condition of many soils, is known to stimulate phosphatase activity in plants; however, the molecular details of this response remain mostly unknown. We purified and sequenced the N-terminal region of a phosphate starvation induced acid phosphatase (AtACP5) from Arabidopsis thaliana, and cloned its cDNA and the corresponding genomic DNA. The nucleotide sequence of the cDNA predicted that AtACP5 is synthesised as a 338 amino acid-long precursor with a signal peptide. AtACP5 was found to be related to known purple acid phosphatases, especially to mammal type 5 acid phosphatases. Other similarities with purple acid phosphatases, which contain a dinuclear metal centre, include the conservation of all residues involved in metal ligand binding and resistance to tartrate inhibition. In addition, AtACP5, like other type 5 acid phosphatases, displayed peroxidation activity. Northern hybridisation experiments, as well as in situ glucuronidase (GUS) activity assays on transgenic plants harbouring AtACP5:GUS translational fusions, showed that AtACP5 is not only responsive to phosphate starvation but also to ABA and salt stress. It is also expressed in senescent leaves and during oxidative stress induced by H2O2, but not by paraquat or salicylic acid. Given its bifunctionality, as it displays both phosphatase and peroxidation activity, we propose that AtACP5 could be involved in phosphate mobilisation and in the metabolism of reactive oxygen species in stressed or senescent parts of the plant.
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Affiliation(s)
- J C del Pozo
- Centro Nacional de Biotechnología-CSIC, Campus de Cantoblanco, Madrid, Spain
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26
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Halleen JM, Räisänen S, Salo JJ, Reddy SV, Roodman GD, Hentunen TA, Lehenkari PP, Kaija H, Vihko P, Väänänen HK. Intracellular fragmentation of bone resorption products by reactive oxygen species generated by osteoclastic tartrate-resistant acid phosphatase. J Biol Chem 1999; 274:22907-10. [PMID: 10438453 DOI: 10.1074/jbc.274.33.22907] [Citation(s) in RCA: 192] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Tartrate-resistant acid phosphatase (TRAP) is highly expressed in bone-resorbing osteoclasts and activated macrophages. It has been suggested that a redox-active iron in the binuclear iron center of TRAP could have the capacity to react with hydrogen peroxide to produce highly destructive reactive oxygen species (ROS). Here we show that TRAP can generate ROS in vitro and that cells over-expressing TRAP produce higher amounts of intracellular ROS than their parent cells. We further demonstrate that these ROS can be targeted to destroy collagen and other proteins. In resorbing osteoclasts, TRAP was found in transcytotic vesicles transporting matrix degradation products through the cell, suggesting that TRAP-facilitated fragmentation of endocytosed material takes place in a specific cellular compartment. These results suggest that bone matrix degradation occurs not only extracellularly in the resorption lacunae but also intracellularly in the transcytotic vesicles. We propose that proteins containing redox-active iron could represent a novel mechanism of physiological fragmentation of organic molecules. This mechanism could be important in tissue remodeling and as a defense mechanism of phagocytosing cells.
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Affiliation(s)
- J M Halleen
- Institute of Biomedicine, Department of Anatomy, University of Turku, FIN-20520 Turku, Finland
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27
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Lindqvist Y, Johansson E, Kaija H, Vihko P, Schneider G. Three-dimensional structure of a mammalian purple acid phosphatase at 2.2 A resolution with a mu-(hydr)oxo bridged di-iron center. J Mol Biol 1999; 291:135-47. [PMID: 10438611 DOI: 10.1006/jmbi.1999.2962] [Citation(s) in RCA: 127] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The crystal structure of purple acid phosphatase from rat bone has been determined by molecular replacement and the structure has been refined to 2.2 A resolution to an R -factor of 21.3 % (R -free 26.5 %). The core of the enzyme consists of two seven-stranded mixed beta-sheets, with each sheet flanked by solvent-exposed alpha-helices on one side. The two sheets pack towards each other forming a beta-sandwich. The di-iron center, located at the bottom of the active-site pocket at one edge of the beta-sandwich, contains a mu-hydroxo or mu-oxo bridge and both metal ions are observed in an almost perfect octahedral coordination geometry. The electron density map indicates that a mu-(hydr)oxo bridge is found in the metal center and that at least one solvent molecule is located in the first coordination sphere of one of the metal ions. The crystallographic study of rat purple acid phosphatase reveals that the mammalian enzymes are very similar in overall structure to the plant enzymes in spite of only 18 % overall sequence identity. In particular, coordination and geometry of the iron cluster is preserved in both enzymes and comparison of the active-sites suggests a common mechanism for the mammalian and plant enzymes. However, significant differences are found in the architecture of the substrate binding pocket.
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Affiliation(s)
- Y Lindqvist
- Department of Medical Biochemistry & Biophysics, Karolinska Institutet, Stockholm, S-171 77, Sweden.
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28
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Uppenberg J, Lindqvist F, Svensson C, Ek-Rylander B, Andersson G. Crystal structure of a mammalian purple acid phosphatase. J Mol Biol 1999; 290:201-11. [PMID: 10388567 DOI: 10.1006/jmbi.1999.2896] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Tartrate-resistant acid phosphatase (TRAP) is a mammalian di-iron- containing enzyme that belongs to the family of purple acid phosphatases (PAP). It is highly expressed in a limited number of tissues, predominantly in bone-resorbing osteoclasts and in macrophages of spleen. We have determined the crystal structure of rat TRAP in complex with a phosphate ion to 2.7 A resolution. The fold resembles that of the catalytic domain of kidney bean purple acid phosphatase (KBPAP), although the sequence similarity is limited to the active site residues. A surface loop near the active site is absent due to proteolysis, leaving the active-site easily accessible from the surrounding solvent. This, we believe, gives a structural explanation for the observed proteolytic activation of TRAP. The current structure was determined at a relatively high pH and without any external reducing agents. It is likely that it represents an oxidized and therefore catalytically inactive form of the enzyme.
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Affiliation(s)
- J Uppenberg
- Department of Structural Chemistry, Pharmacia and Upjohn, Lindhagensgatan 133, Stockholm, S-112 87, Sweden.
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29
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Kaija H, Jia J, Lindqvist Y, Andersson G, Vihko P. Tartrate-resistant bone acid phosphatase: large-scale production and purification of the recombinant enzyme, characterization, and crystallization. J Bone Miner Res 1999; 14:424-30. [PMID: 10027907 DOI: 10.1359/jbmr.1999.14.3.424] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Tartrate-resistant acid phosphatase (TRAP) is an enzyme expressed in bone-resorbing osteoclasts and certain tissue macrophages in human tissues. The functions of TRAP in biological systems are not known. Elucidation of the three-dimensional structure of the active site could yield important information about the physiological substrate(s) of the enzyme. We have produced recombinant rat bone TRAP using a baculovirus expression vector system. The production was scaled up to a 30-l bioreactor, and a method of purification in large scale was developed. The enzyme is composed of one 34 kDa polypeptide chain. Trypsin digestion resulted in a preparation where two subunits of approximately 23 kDa and approximately 16 kDa appeared after disulfide reduction. Trypsin digestion activated the enzyme. We generated monoclonal antibodies against recombinant TRAP. One of the selected antibodies detected the 23 kDa subunit in Western blotting. The reduced and oxidized forms of the enzyme could be separated by Mono-S cation-exchange chromatography. Crystals of TRAP have been obtained with ammonium sulfate/polyethylene glycol as precipitant. They belong to space group P212121 or P21212 with unit cell dimensions a = 57.2 A, b = 69.5 A, and c = 87.2 A and diffract to at least 2.2 A resolution. A packing density value of 2.55 A3/Da is consistent with one subunit in the asymmetric unit.
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Affiliation(s)
- H Kaija
- Biocenter Oulu and WHO Collaborating Center for Research on Reproductive Health, University of Oulu, Oulu, Finland
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30
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Durmus A, Eicken C, Sift BH, Kratel A, Kappl R, Hüttermann J, Krebs B. The active site of purple acid phosphatase from sweet potatoes (Ipomoea batatas) metal content and spectroscopic characterization. EUROPEAN JOURNAL OF BIOCHEMISTRY 1999; 260:709-16. [PMID: 10102999 DOI: 10.1046/j.1432-1327.1999.00230.x] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Purple acid phosphatase from sweet potatoes Ipomoea batatas (spPAP) has been purified to homogeneity and characterized using spectroscopic investigations. Matrix-assisted laser desorption/ionization mass spectrometry analysis revealed a molecular mass of approximately 112 kDa. The metal content was determined by X-ray fluorescence using synchrotron radiation. In contrast to previous studies it is shown that spPAP contains a Fe(III)-Zn(II) center in the active site as previously determined for the purple acid phosphatase from red kidney bean (kbPAP). Moreover, an alignment of the amino acid sequences suggests that the residues involved in metal-binding are identical in both plant PAPs. Tyrosine functions as one of the ligands for the chromophoric Fe(III). Low temperature EPR spectra of spPAP show a signal near g = 4.3, characteristic for high-spin Fe(III) in a rhombic environment. The Tyr-Fe(III) charge transfer transition and the EPR signal are both very sensitive to changes in pH. The pH dependency strongly suggests the presence of an ionizable group with a pKa of 4.7, arising from an aquo ligand coordinated to Fe(III). EPR and UV/visible studies of spPAP in the presence of the inhibitors phosphate or arsenate suggest that both anions bind to Fe(III) in the binuclear center replacing the coordinated water or hydroxide ligand necessary for hydrolysis. The conserved histidine residues of spPAP corresponding to His202 and His296 in kbPAP probably interact in catalysis.
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Affiliation(s)
- A Durmus
- Anorganisch-Chemisches Institut, Homburg, Germany
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31
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Than R, Feldmann AA, Krebs B. Structural and functional studies on model compounds of purple acid phosphatases and catechol oxidases. Coord Chem Rev 1999. [DOI: 10.1016/s0010-8545(98)00234-3] [Citation(s) in RCA: 190] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Ménage S, Galey JB, Dumats J, Hussler G, Seité M, Luneau IG, Chottard G, Fontecave M. O2 Activation and Aromatic Hydroxylation Performed by Diiron Complexes. J Am Chem Soc 1998. [DOI: 10.1021/ja981123a] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stéphane Ménage
- Contribution from the Laboratoire de Chimie et Biochimie des Centres Redox Biologiques, DBMS-CEA Grenoble/EP 1087 CNRS/ Université Joseph Fourier, 17 Rue des Martyrs 38054, Grenoble Cédex 9, France, L'Oréal Research Center, 1 avenue Eugène Schueller, 93600 Aulnay sous bois, France, L.E.D.S.S., UMR 5616, Université Joseph Fourier, 301 rue de la Chimie, 91041 Grenoble Cedex, France, and Laboratoire de Chimie des Métaux de Transition, Université Pierre et Marie Curie, F75230 Paris Cedex 05, France
| | - Jean-Baptiste Galey
- Contribution from the Laboratoire de Chimie et Biochimie des Centres Redox Biologiques, DBMS-CEA Grenoble/EP 1087 CNRS/ Université Joseph Fourier, 17 Rue des Martyrs 38054, Grenoble Cédex 9, France, L'Oréal Research Center, 1 avenue Eugène Schueller, 93600 Aulnay sous bois, France, L.E.D.S.S., UMR 5616, Université Joseph Fourier, 301 rue de la Chimie, 91041 Grenoble Cedex, France, and Laboratoire de Chimie des Métaux de Transition, Université Pierre et Marie Curie, F75230 Paris Cedex 05, France
| | - Jacqueline Dumats
- Contribution from the Laboratoire de Chimie et Biochimie des Centres Redox Biologiques, DBMS-CEA Grenoble/EP 1087 CNRS/ Université Joseph Fourier, 17 Rue des Martyrs 38054, Grenoble Cédex 9, France, L'Oréal Research Center, 1 avenue Eugène Schueller, 93600 Aulnay sous bois, France, L.E.D.S.S., UMR 5616, Université Joseph Fourier, 301 rue de la Chimie, 91041 Grenoble Cedex, France, and Laboratoire de Chimie des Métaux de Transition, Université Pierre et Marie Curie, F75230 Paris Cedex 05, France
| | - Georges Hussler
- Contribution from the Laboratoire de Chimie et Biochimie des Centres Redox Biologiques, DBMS-CEA Grenoble/EP 1087 CNRS/ Université Joseph Fourier, 17 Rue des Martyrs 38054, Grenoble Cédex 9, France, L'Oréal Research Center, 1 avenue Eugène Schueller, 93600 Aulnay sous bois, France, L.E.D.S.S., UMR 5616, Université Joseph Fourier, 301 rue de la Chimie, 91041 Grenoble Cedex, France, and Laboratoire de Chimie des Métaux de Transition, Université Pierre et Marie Curie, F75230 Paris Cedex 05, France
| | - Michel Seité
- Contribution from the Laboratoire de Chimie et Biochimie des Centres Redox Biologiques, DBMS-CEA Grenoble/EP 1087 CNRS/ Université Joseph Fourier, 17 Rue des Martyrs 38054, Grenoble Cédex 9, France, L'Oréal Research Center, 1 avenue Eugène Schueller, 93600 Aulnay sous bois, France, L.E.D.S.S., UMR 5616, Université Joseph Fourier, 301 rue de la Chimie, 91041 Grenoble Cedex, France, and Laboratoire de Chimie des Métaux de Transition, Université Pierre et Marie Curie, F75230 Paris Cedex 05, France
| | - Isabelle Gautier Luneau
- Contribution from the Laboratoire de Chimie et Biochimie des Centres Redox Biologiques, DBMS-CEA Grenoble/EP 1087 CNRS/ Université Joseph Fourier, 17 Rue des Martyrs 38054, Grenoble Cédex 9, France, L'Oréal Research Center, 1 avenue Eugène Schueller, 93600 Aulnay sous bois, France, L.E.D.S.S., UMR 5616, Université Joseph Fourier, 301 rue de la Chimie, 91041 Grenoble Cedex, France, and Laboratoire de Chimie des Métaux de Transition, Université Pierre et Marie Curie, F75230 Paris Cedex 05, France
| | - Geneviève Chottard
- Contribution from the Laboratoire de Chimie et Biochimie des Centres Redox Biologiques, DBMS-CEA Grenoble/EP 1087 CNRS/ Université Joseph Fourier, 17 Rue des Martyrs 38054, Grenoble Cédex 9, France, L'Oréal Research Center, 1 avenue Eugène Schueller, 93600 Aulnay sous bois, France, L.E.D.S.S., UMR 5616, Université Joseph Fourier, 301 rue de la Chimie, 91041 Grenoble Cedex, France, and Laboratoire de Chimie des Métaux de Transition, Université Pierre et Marie Curie, F75230 Paris Cedex 05, France
| | - Marc Fontecave
- Contribution from the Laboratoire de Chimie et Biochimie des Centres Redox Biologiques, DBMS-CEA Grenoble/EP 1087 CNRS/ Université Joseph Fourier, 17 Rue des Martyrs 38054, Grenoble Cédex 9, France, L'Oréal Research Center, 1 avenue Eugène Schueller, 93600 Aulnay sous bois, France, L.E.D.S.S., UMR 5616, Université Joseph Fourier, 301 rue de la Chimie, 91041 Grenoble Cedex, France, and Laboratoire de Chimie des Métaux de Transition, Université Pierre et Marie Curie, F75230 Paris Cedex 05, France
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33
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Glerup J, Michelsen K, Arulsamy N, Hodgson DJ. Binuclear oxo-bridged iron(III) complexes of chiral tetradentate ligands. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(97)06042-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Halleen JM, Kaija H, Stepan JJ, Vihko P, Väänänen HK. Studies on the protein tyrosine phosphatase activity of tartrate-resistant acid phosphatase. Arch Biochem Biophys 1998; 352:97-102. [PMID: 9521821 DOI: 10.1006/abbi.1998.0600] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Tartrate-resistant acid phosphatase (TRAP) is an enzyme with unknown biological function. In human tissues, its expression is restricted to bone-resorbing osteoclasts and activated macrophages. Osteoclasts secrete TRAP to the circulation during bone resorption. Reduction of the enzyme's binuclear iron center is important in regulating its activity. The purple form of the enzyme is inactive and contains two ferric ions. Mild reduction activates it to a pink form containing one ferric and one ferrous ion. Instead, strong reduction removes the iron content, resulting in a colorless, inactive enzyme. We describe spontaneous activation of the purple form to the pink form upon incubation at +37 degrees C. Further incubation results in slow inactivation of the enzyme and color change to yellowish. The enzyme purified from osteoclasts is a mixture of the purple and pink forms, but the enzyme purified from serum represents the yellowish form. We suggest that the newly synthesized enzyme is purple and reduced in the cell to the functionally active pink form. After fulfilling its biological function in the cell, the enzyme is further reduced to the yellowish form and secreted into the circulation. In the serum, further reduction would dissociate the iron content. The enzymes from osteoclasts and macrophages had similar catalytic properties, both being active as a protein tyrosine phosphatase (PTPase). The acid phosphatase (AcP) and PTPase activities were similar, and the preferred AcP substrate, pNPP, was processed in the same active site as phosphotyrosine. Our results suggest that redox-regulated PTPase activity may be a major function of TRAP in vivo.
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Affiliation(s)
- J M Halleen
- Biocenter Oulu and Department of Anatomy, University of Oulu, Oulu, 90220, Finland.
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35
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Lambert E, Chabut B, Chardon-Noblat S, Deronzier A, Chottard G, Bousseksou A, Tuchagues JP, Laugier J, Bardet M, Latour JM. Synthesis, Structural, Magnetic, and Redox Properties of Asymmetric Diiron Complexes with a Single Terminally Bound Phenolate Ligand. Relevance to the Purple Acid Phosphatase Enzymes. J Am Chem Soc 1997. [DOI: 10.1021/ja970345q] [Citation(s) in RCA: 134] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elisabeth Lambert
- Contribution from the CEA - Département de Recherche Fondamentale sur la Matière Condensée, SCIB-Laboratoire de Chimie de Coordination (URA CNRS 1194) CEA/Grenoble, 38054 Grenoble Cedex 9, France, Laboratoire de Chimie des Métaux de Transition, Université de Paris VI, Boîte 42, 75252 Paris Cedex 05, France, Laboratoire de Chimie de Coordination du CNRS, UPR 8241 liée par convention à l'Université Paul Sabatier et à l'lnstitut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex
| | - Barbara Chabut
- Contribution from the CEA - Département de Recherche Fondamentale sur la Matière Condensée, SCIB-Laboratoire de Chimie de Coordination (URA CNRS 1194) CEA/Grenoble, 38054 Grenoble Cedex 9, France, Laboratoire de Chimie des Métaux de Transition, Université de Paris VI, Boîte 42, 75252 Paris Cedex 05, France, Laboratoire de Chimie de Coordination du CNRS, UPR 8241 liée par convention à l'Université Paul Sabatier et à l'lnstitut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex
| | - Sylvie Chardon-Noblat
- Contribution from the CEA - Département de Recherche Fondamentale sur la Matière Condensée, SCIB-Laboratoire de Chimie de Coordination (URA CNRS 1194) CEA/Grenoble, 38054 Grenoble Cedex 9, France, Laboratoire de Chimie des Métaux de Transition, Université de Paris VI, Boîte 42, 75252 Paris Cedex 05, France, Laboratoire de Chimie de Coordination du CNRS, UPR 8241 liée par convention à l'Université Paul Sabatier et à l'lnstitut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex
| | - Alain Deronzier
- Contribution from the CEA - Département de Recherche Fondamentale sur la Matière Condensée, SCIB-Laboratoire de Chimie de Coordination (URA CNRS 1194) CEA/Grenoble, 38054 Grenoble Cedex 9, France, Laboratoire de Chimie des Métaux de Transition, Université de Paris VI, Boîte 42, 75252 Paris Cedex 05, France, Laboratoire de Chimie de Coordination du CNRS, UPR 8241 liée par convention à l'Université Paul Sabatier et à l'lnstitut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex
| | - Geneviève Chottard
- Contribution from the CEA - Département de Recherche Fondamentale sur la Matière Condensée, SCIB-Laboratoire de Chimie de Coordination (URA CNRS 1194) CEA/Grenoble, 38054 Grenoble Cedex 9, France, Laboratoire de Chimie des Métaux de Transition, Université de Paris VI, Boîte 42, 75252 Paris Cedex 05, France, Laboratoire de Chimie de Coordination du CNRS, UPR 8241 liée par convention à l'Université Paul Sabatier et à l'lnstitut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex
| | - Azzedine Bousseksou
- Contribution from the CEA - Département de Recherche Fondamentale sur la Matière Condensée, SCIB-Laboratoire de Chimie de Coordination (URA CNRS 1194) CEA/Grenoble, 38054 Grenoble Cedex 9, France, Laboratoire de Chimie des Métaux de Transition, Université de Paris VI, Boîte 42, 75252 Paris Cedex 05, France, Laboratoire de Chimie de Coordination du CNRS, UPR 8241 liée par convention à l'Université Paul Sabatier et à l'lnstitut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex
| | - Jean-Pierre Tuchagues
- Contribution from the CEA - Département de Recherche Fondamentale sur la Matière Condensée, SCIB-Laboratoire de Chimie de Coordination (URA CNRS 1194) CEA/Grenoble, 38054 Grenoble Cedex 9, France, Laboratoire de Chimie des Métaux de Transition, Université de Paris VI, Boîte 42, 75252 Paris Cedex 05, France, Laboratoire de Chimie de Coordination du CNRS, UPR 8241 liée par convention à l'Université Paul Sabatier et à l'lnstitut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex
| | - Jean Laugier
- Contribution from the CEA - Département de Recherche Fondamentale sur la Matière Condensée, SCIB-Laboratoire de Chimie de Coordination (URA CNRS 1194) CEA/Grenoble, 38054 Grenoble Cedex 9, France, Laboratoire de Chimie des Métaux de Transition, Université de Paris VI, Boîte 42, 75252 Paris Cedex 05, France, Laboratoire de Chimie de Coordination du CNRS, UPR 8241 liée par convention à l'Université Paul Sabatier et à l'lnstitut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex
| | - Michel Bardet
- Contribution from the CEA - Département de Recherche Fondamentale sur la Matière Condensée, SCIB-Laboratoire de Chimie de Coordination (URA CNRS 1194) CEA/Grenoble, 38054 Grenoble Cedex 9, France, Laboratoire de Chimie des Métaux de Transition, Université de Paris VI, Boîte 42, 75252 Paris Cedex 05, France, Laboratoire de Chimie de Coordination du CNRS, UPR 8241 liée par convention à l'Université Paul Sabatier et à l'lnstitut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex
| | - Jean-Marc Latour
- Contribution from the CEA - Département de Recherche Fondamentale sur la Matière Condensée, SCIB-Laboratoire de Chimie de Coordination (URA CNRS 1194) CEA/Grenoble, 38054 Grenoble Cedex 9, France, Laboratoire de Chimie des Métaux de Transition, Université de Paris VI, Boîte 42, 75252 Paris Cedex 05, France, Laboratoire de Chimie de Coordination du CNRS, UPR 8241 liée par convention à l'Université Paul Sabatier et à l'lnstitut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex
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Babu NKC, Nair BU, Ramasami T, Yamasaki M, Shibahara T. A New Class of Bridged Diiron(III) Complex with a Schiff-base Bridge: Structure and Magnetic Properties of Di-N,N′-trimethylene bissalicylidenimine(bis-N-N′-trimethylenebissalicylideniminato)iron(III). CHEM LETT 1997. [DOI: 10.1246/cl.1997.975] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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The reactions of a dinuclear ferric complex (oxo) di-iron(III) triethylenetetraamminehexaacetate, Fe2O(ttha)2−, with oxidizing and reducing free radicals. A pulse radiolysis study. Radiat Phys Chem Oxf Engl 1993 1997. [DOI: 10.1016/s0969-806x(96)00195-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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38
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Jones PL, Jeffery JC, McCleverty JA, Ward MD. Dinuclear and tetranuclear oxo-bridged iron(III) complexes of the ambidentate ligand 3-(2-pyridyl)-pyrazole. Polyhedron 1997. [DOI: 10.1016/s0277-5387(96)00457-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Holm RH, Kennepohl P, Solomon EI. Structural and Functional Aspects of Metal Sites in Biology. Chem Rev 1996; 96:2239-2314. [PMID: 11848828 DOI: 10.1021/cr9500390] [Citation(s) in RCA: 1865] [Impact Index Per Article: 66.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Richard H. Holm
- Departments of Chemistry, Harvard University, Cambridge, Massachusetts 02138, and Stanford University, Stanford, California 94305
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41
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Magnetic susceptibility studies on the diiron forms of the metalloprotein purple acid phosphate from bovine spleen and kidney bean. Inorganica Chim Acta 1996. [DOI: 10.1016/s0020-1693(96)05292-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Halleen J, Hentunen TA, Hellman J, Väänänen HK. Tartrate-resistant acid phosphatase from human bone: purification and development of an immunoassay. J Bone Miner Res 1996; 11:1444-52. [PMID: 8889844 DOI: 10.1002/jbmr.5650111011] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Tartrate-resistant acid phosphatase (TRAP) was purified 20,000-fold to apparent homogeneity from human bone. The purified enzyme consisted of one 32 kd subunit, which was cleaved by beta-mercaptoethanol into two subunits of 15 kd and 20 kd, as shown by sodium dodecyl sulfide-polyacrylamide gel electrophoresis (SDS-PAGE) and silver staining. The purified enzyme was identified by N-terminal amino acid sequencing, and it was shown to be homologous with previously purified TRAPs from other sources. We developed a polyclonal antiserum against the purified enzyme in mice. In immunohistochemistry, the antiserum recognized osteoclasts from human bone and alveolar macrophages from human lung tissue, but no cells from human spleen tissue. It also stained osteoclasts from rat bone cells cultured on bovine bone slices. Purified TRAP could be inhibited by vanadate and molybdate, but not by tartrate, and it was activated 2-fold by beta-mercaptoethanol. The glycoprotein structure of human bone TRAP was analyzed, and it was shown to contain only high-mannose type carbohydrates. We used the polyclonal antibody to develop a competitive fluorescence immunoassay for measuring serum TRAP concentrations. According to the assay, children have higher serum TRAP concentrations than adults, and postmenopausal women have higher concentrations than premenopausal women. Postmenopausal women also have higher serum TRAP concentrations than postmenopausal women on estrogen replacement therapy.
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MESH Headings
- Acid Phosphatase/blood
- Acid Phosphatase/chemistry
- Acid Phosphatase/isolation & purification
- Acid Phosphatase/metabolism
- Animals
- Biomarkers, Tumor/blood
- Biomarkers, Tumor/chemistry
- Biomarkers, Tumor/isolation & purification
- Biomarkers, Tumor/metabolism
- Cattle
- Child
- Electrophoresis, Polyacrylamide Gel
- Female
- Femur Head/cytology
- Femur Head/metabolism
- Glycoproteins/analysis
- Glycoproteins/metabolism
- Hip Prosthesis
- Humans
- Immunohistochemistry
- Isoenzymes/blood
- Isoenzymes/chemistry
- Isoenzymes/isolation & purification
- Isoenzymes/metabolism
- Macrophages, Alveolar/cytology
- Macrophages, Alveolar/metabolism
- Mannose/metabolism
- Mercaptoethanol/metabolism
- Mice
- Mice, Inbred BALB C
- Molecular Weight
- Osteoclasts/cytology
- Osteoclasts/metabolism
- Osteoporosis, Postmenopausal/blood
- Osteoporosis, Postmenopausal/metabolism
- Precipitin Tests
- Rats
- Silver Staining
- Spleen/cytology
- Tartrate-Resistant Acid Phosphatase
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Affiliation(s)
- J Halleen
- Department of Anatomy, University of Oulu, Finland
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43
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Neves A, de Brito MA, Vencato I, Drago V, Griesar K, Haase W. Fe(III)Fe(III) and Fe(II)Fe(III) Complexes as Synthetic Analogues for the Oxidized and Reduced Forms of Purple Acid Phosphatases. Inorg Chem 1996; 35:2360-2368. [PMID: 11666436 DOI: 10.1021/ic950456v] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Novel Fe(III)Fe(III) and Fe(II)Fe(III) complexes [Fe(2)(BBPMP)(&mgr;-OAc)(&mgr;-X)](n)() (1, X = OAc(-), n = 1+; 2, X = OH(-), n = 1+; 3, X = OAc(-), n = 0; 4, X = OH(-), n = 0), where BBPMP(3)(-) is the anion of 2,6-bis[(2-hydroxybenzyl)(2-pyridylmethyl)aminomethyl]-4-methylphenol, and OAc(-) is acetate, were prepared in order to provide models for the active site of purple acid phosphatases (PAPs). Complex 1 was obtained by the reaction of H(3)BBPMP with Fe(ClO(4))(2).6H(2)O in methanol and sodium acetate trihydrate under ambient conditions, while complex 3 was synthesized as described for 1, under an argon atmosphere with low levels of dioxygen. 2 was isolated from 1in acetonitrile by a substitution of the bridging acetate group by hydroxide, while 4 was generated in solution during a spectropotentiostatic experiment on 2, under argon. Complex 1, [Fe(III)(2)(BBPMP)(&mgr;-OAc)(2)]ClO(4).H(2)O, has been characterized by X-ray crystallography. Crystal data: monoclinic, space group P2(1)/n, a = 14.863(5) Å, b = 12.315(3) Å, c = 20.872(8) Å, beta = 90.83(3) degrees, Z = 4. IR, Mössbauer, magnetic, electronic absorption, and electrochemical properties of 1-3 have been investigated, and some of these properties represent a contribution to the understanding of the dinuclear iron center of PAPs. Complexes 2, [Fe(III)(2)(BBPMP)(&mgr;-OAc)(&mgr;-OH)]ClO(4) (lambda(max) = 568 nm/epsilon = 4760 M(-)(1) cm(-)(1)), and 4 [Fe(II)Fe(III)(BBPMP)(&mgr;-OAc)(&mgr;-OH)] (lambda(max) = 516 nm/epsilon = 4560 M(-)(1) cm(-)(1)), constitute good synthetic analogues for the chromophoric site for the oxidized and reduced forms, respectively, of the enzyme.
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Affiliation(s)
- Ademir Neves
- Institut für Physikalische Chemie, Technische Hochschule, Darmstadt, D-6100 Darmstadt, Germany
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A new asymmetric N5O2-donor binucleating ligand and its first FeIIFeIII complex as a model for the redox properties of uteroferrin. Inorganica Chim Acta 1995. [DOI: 10.1016/0020-1693(95)04678-3] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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Klabunde T, Sträter N, Krebs B, Witzel H. Structural relationship between the mammalian Fe(III)-Fe(II) and the Fe(III)-Zn(II) plant purple acid phosphatases. FEBS Lett 1995; 367:56-60. [PMID: 7601285 DOI: 10.1016/0014-5793(95)00536-i] [Citation(s) in RCA: 77] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The primary structure of uteroferrin (Uf), a 35 kDa monomeric mammalian purple acid phosphatase (PAP) containing a Fe(III)-Fe(II) center, has been compared with the sequence of the homodimeric 111 kDa Fe(III)-Zn(II) kidney bean purple acid phosphatase (KBPAP). The alignment suggests that the amino acid residues ligating the dimetal center are identical in Uf and KBPAP, although the geometry of the coordination sphere might slightly differ. Secondary structure predictions indicate that Uf contains two beta alpha beta alpha beta motifs thus resembling the folding topology of the plant enzyme. Guided by the recently determined X-ray structure of KBPAP a tentative model for the mammalian PAP can be constructed.
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Affiliation(s)
- T Klabunde
- Institut für Anorganische Chemie, Westfälische Wilhelms-Universität, Münster, Germany
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47
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Sträter N, Klabunde T, Tucker P, Witzel H, Krebs B. Crystal structure of a purple acid phosphatase containing a dinuclear Fe(III)-Zn(II) active site. Science 1995; 268:1489-92. [PMID: 7770774 DOI: 10.1126/science.7770774] [Citation(s) in RCA: 360] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Kidney bean purple acid phosphatase (KBPAP) is an Fe(III)-Zn(II) metalloenzyme resembling the mammalian Fe(III)-Fe(II) purple acid phosphatases. The structure of the homodimeric 111-kilodalton KBPAP was determined at a resolution of 2.9 angstroms. The enzyme contains two domains in each subunit. The active site is located in the carboxyl-terminal domain at the carboxy end of two sandwiched beta alpha beta alpha beta motifs. The two metal ions are 3.1 angstroms apart and bridged monodentately by Asp164. The iron is further coordinated by Tyr167, His325, and Asp135, and the zinc by His286, His323, and Asn201. The active-site structure is consistent with previous proposals regarding the mechanism of phosphate ester hydrolysis involving nucleophilic attack on the phosphate group by an Fe(III)-coordinated hydroxide ion.
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Affiliation(s)
- N Sträter
- Anorganisch-Chemisches Institut, Universität Münster, Germany
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49
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Murray KS. The Magnetochemistry of Homo-and Hetero-Tetranuclear First-Row d-Block Complexes. ADVANCES IN INORGANIC CHEMISTRY 1995. [DOI: 10.1016/s0898-8838(08)60119-1] [Citation(s) in RCA: 123] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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50
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Klabunde T, Stahl B, Suerbaum H, Hahner S, Karas M, Hillenkamp F, Krebs B, Witzel H. The amino acid sequence of the red kidney bean Fe(III)-Zn(II) purple acid phosphatase. Determination of the amino acid sequence by a combination of matrix-assisted laser desorption/ionization mass spectrometry and automated Edman sequencing. EUROPEAN JOURNAL OF BIOCHEMISTRY 1994; 226:369-75. [PMID: 8001554 DOI: 10.1111/j.1432-1033.1994.tb20061.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Purple acid phosphatase of the common bean Phaseolus vulgaris is a homodimeric 110-kDa glycoprotein with a Fe(III)-Zn(II) center in the active site of each monomer. After exchange of Zn(II) for Fe(II), the enzyme spectroscopically and kinetically resembles the mammalian purple acid phosphatases with Fe(III)-Fe(II) centers in monomeric 35-kDa proteins. The kidney bean enzyme consists of 432 amino acids/monomer with five N-glycosylated asparagine residues. The complete amino acid sequence was determined by a combination of matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) and classical sequencing methods. Our strategy involved mass determination and sequence analysis of all cyanogen-bromide-generated fragments by automated Edman degradation. Limited cleavages with cyanogen bromide were performed to obtain fragments containing still uncleaved Met-Xaa linkages. MALDI mass spectra of these products allowed the characterization of each fragment and the determination of the order of the cyanogen bromide fragments in the intact protein without producing overlapping peptides. For one large 30-kDa methionine-free fragment, the alignment of the Edman-degraded tryptic peptides was obtained by MALDI-MS analysis and enzymic microscale peptide laddering of overlapping Glu-C-generated fragments. The employed strategy shows that the classical method, in combination with modern mass spectrometry, is an attractive approach for primary structure determination in addition to the DNA sequencing method.
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Affiliation(s)
- T Klabunde
- Institut für Anorganische Chemie, Westfälische Wilhelms-Universität, Münster, Germany
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