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de Capitani MM, Ramírez AS, Rossi L, Alexander JAN, De Lorenzo S, Locher KP, Reymond JL. Synthesis and characterisation of fluorescent substrates for eukaryotic protein N-glycosylation. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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2
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Wu B, Woodward R, Wen L, Wang X, Zhao G, Wang PG. Synthesis of a Comprehensive Polyprenol Library for Evaluation of Bacterial Enzyme Lipid Substrate Specificity. European J Org Chem 2013; 2013:8162-8173. [PMID: 24511260 DOI: 10.1002/ejoc.201301089] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Polyprenols, a type of universal glycan lipid carrier, play important roles for glycan bio-assembly in wide variety of living systems. Chemical synthesis of natural polyisoprenols such as undecaprenol and dolichols, but especially their homologs, could serves as a powerful molecular tool to dissect and define the functions of enzymes involved in glycan biosynthesis. In this paper, we report an efficient and reliable method to construct this type of hydrophoic molecule through a base-mediated iterative coupling approach using a key bifunctional (Z, Z)-diisoprenyl building block. The ligation with N-acetyl-D-glactosamine (GalNAc) with a set of the synthesized lipid analogs forming polyprenol pyrophosphate linked GalNAc (GalNAc-PP-lipid) conjugates is also demonstrated.
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Affiliation(s)
- Baolin Wu
- The Center for Therapeutics and Diagnostics (CDT), Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA, , Homepage: http://chemistry.gsu.edu/faculty/PWang/
| | - Robert Woodward
- Department of Chemistry and Biochemistry, University of Mount Union, Alliance, OH 44601, USA
| | - Liuqing Wen
- The Center for Therapeutics and Diagnostics (CDT), Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA, , Homepage: http://chemistry.gsu.edu/faculty/PWang/
| | - Xuan Wang
- The Center for Therapeutics and Diagnostics (CDT), Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA, , Homepage: http://chemistry.gsu.edu/faculty/PWang/
| | - Guohui Zhao
- The Center for Therapeutics and Diagnostics (CDT), Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA, , Homepage: http://chemistry.gsu.edu/faculty/PWang/
| | - Peng George Wang
- The Center for Therapeutics and Diagnostics (CDT), Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA, , Homepage: http://chemistry.gsu.edu/faculty/PWang/
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3
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An undecaprenyl phosphate analog containing the phenoxy group at the ω-end of the oligoisoprene chain. Russ Chem Bull 2010. [DOI: 10.1007/s11172-010-0231-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Chang YF, Liu CY, Guo CW, Wang YC, Fang JM, Cheng WC. Solid-Phase Organic Synthesis of Polyisoprenoid Alcohols with Traceless Sulfone Linker. J Org Chem 2008; 73:7197-203. [DOI: 10.1021/jo8010182] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yi-Fan Chang
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Chen-Yu Liu
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Chih-Wei Guo
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Yen-Chih Wang
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Jim-Min Fang
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Wei-Chieh Cheng
- The Genomics Research Center, Academia Sinica, Nankang, Taipei, 115, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
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5
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Cheng L, Chen Q, Liu J, Du Y. Synthesis of a fluorescence-labeled K30 antigen repeating unit using click chemistry. Carbohydr Res 2007; 342:975-81. [PMID: 17306240 DOI: 10.1016/j.carres.2007.01.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2006] [Revised: 01/23/2007] [Accepted: 01/25/2007] [Indexed: 10/23/2022]
Abstract
An N-dansyl-labeled K30 antigen repeating unit, [4-[5-(N,N'-dimethylamino)naphthalene-1-sulfonamine]-1H-1,2,3-triazol-1-yl]hexyl beta-D-glucopyranosyluronate-(1-->3)-alpha-D-galactopyranosyl-alpha-D-mannopyranosyl-(1-->3)-beta-D-galactopyranoside, was synthesized using click chemistry, the copper(I)-catalyzed 1,3-dipolar cycloaddition reaction of an azide and an alkyne. The target compound could further facilitate the studies of interactions among K30 oligosaccharides and proteins.
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Affiliation(s)
- Lijian Cheng
- The State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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6
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Rabbani S, Compostella F, Franchini L, Wagner B, Panza L, Ernst B. Synthetic Potential of Fucosyltransferase III for the Synthesis of Fluorescent‐labeled Milk Oligosaccharides. J Carbohydr Chem 2007. [DOI: 10.1080/07328300500341965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Said Rabbani
- a Institute of Molecular Pharmacy, Pharmacenter of the University of Basel , Basel , Switzerland
| | - Federica Compostella
- b Dipartimento di Chimica, Biochimica e Biotecnologie per la Medicina , Università di Milano , Milano , Italy
| | - Laura Franchini
- b Dipartimento di Chimica, Biochimica e Biotecnologie per la Medicina , Università di Milano , Milano , Italy
| | - Beatrice Wagner
- a Institute of Molecular Pharmacy, Pharmacenter of the University of Basel , Basel , Switzerland
| | - Luigi Panza
- c Dipartimento di Scienze Chimiche, Alimentari, Farmaceutiche e Farmacologiche , Università del Piemonte Orientale , Novara , Italy
| | - Beat Ernst
- a Institute of Molecular Pharmacy, Pharmacenter of the University of Basel , Basel , Switzerland
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7
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Lamani E, Mewbourne RB, Fletcher DS, Maltsev SD, Danilov LL, Veselovsky VV, Lozanova AV, Grigorieva NY, Pinsker OA, Xing J, Forsee WT, Cheung HC, Schutzbach JS, Shibaev VN, Jedrzejas MJ. Structural studies and mechanism of Saccharomyces cerevisiae dolichyl-phosphate-mannose synthase: insights into the initial step of synthesis of dolichyl-phosphate-linked oligosaccharide chains in membranes of endoplasmic reticulum. Glycobiology 2006; 16:666-78. [PMID: 16549409 DOI: 10.1093/glycob/cwj104] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Dolichyl-phosphate-mannose (Dol-P-Man) synthase catalyzes the reversible formation of a key intermediate that is involved as a mannosyl donor in at least three different pathways for the synthesis of glycoconjugates important for eukaryotic development and viability. The enzyme is found associated with membranes of the endoplasmic reticulum (ER), where it transfers mannose from the water soluble cytoplasmic donor, guanosine 5'-diphosphate (GDP)-Man, to the membrane-bound, extremely hydrophobic, and long-chain polyisoprenoid acceptor, dolichyl-phosphate (Dol-P). The enzyme from Saccharomyces cerevisiae has been utilized to investigate the structure and activity of the protein and interactions of the enzyme with Dol-P and synthetic Dol-P analogs containing fluorescent probes. These interactions have been explored utilizing fluorescence resonance energy transfer (FRET) to establish intramolecular distances within the protein molecule as well as intermolecular distances to determine the localization of the active site and the hydrophobic substrate on the enzyme's surface. A three-dimensional (3D) model of the enzyme was produced with bound substrates, Dol-P, GDP-Man, and divalent cations to delineate the binding sites for these substrates as well as the catalytic site. The FRET analysis was used to characterize the functional properties of the enzyme and to evaluate its modeled structure. The data allowed for proposing a molecular mechanism of catalysis as an inverting mechanism of mannosyl residue transfer.
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Affiliation(s)
- Ejvis Lamani
- Children's Hospital Oakland Research Institute, CA 94609, USA
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8
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Dowlut M, Hall DG, Hindsgaul O. Investigation of Nonspecific Effects of Different Dyes in the Screening of Labeled Carbohydrates against Immobilized Proteins. J Org Chem 2005; 70:9809-13. [PMID: 16292809 DOI: 10.1021/jo051503w] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[structure: see text] Carbohydrates play an important role in life processes, and combinatorial chemistry can provide useful sources of thousands of synthetic carbohydrates as potential ligands for biological receptors. To accelerate the detection of positive hits arising from specific interactions between a carbohydrate and a protein, the use of fluorescent dyes can serve as a reliable detecting tool. A study of labeled carbohydrates to lectins conjugated to a solid-support shows that succinimidyl 6-(N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino)hexanoate (NBD-X) dye provides by far the lowest level of nonspecific interaction with immobilized protein. This observation is in stark contrast with the commonly used labeling reagents constituted of charged and aromatic groups, for instance, FITC and TAMRA dyes.
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Affiliation(s)
- Meenakshi Dowlut
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
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9
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Guy M, Illarionov P, Gurcha S, Dover L, Gibson K, Smith P, Minnikin D, Besra G. Novel prenyl-linked benzophenone substrate analogues of mycobacterial mannosyltransferases. Biochem J 2004; 382:905-12. [PMID: 15202931 PMCID: PMC1133966 DOI: 10.1042/bj20040911] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2004] [Accepted: 06/17/2004] [Indexed: 11/17/2022]
Abstract
PPM (polyprenol monophosphomannose) has been shown to act as a glycosyl donor in the biosynthesis of the Man (mannose)-rich mycobacterial lipoglycans LM (lipomannan) and LAM (lipoarabinomannan). The Mycobacterium tuberculosis PPM synthase (Mt-Ppm1) catalyses the transfer of Man from GDP-Man to polyprenyl phosphates. The resulting PPM then serves as a donor of Man residues leading to the formation of an alpha(1-->6)LM intermediate through a PPM-dependent alpha(1-->6)mannosyltransferase. In the present study, we prepared a series of ten novel prenyl-related photoactivatable probes based on benzophenone with lipophilic spacers replacing several internal isoprene units. These probes were excellent substrates for the recombinant PPM synthase Mt-Ppm1/D2 and, on photoactivation, several inhibited its activity in vitro. The protection of the PPM synthase activity by a 'natural' C(75) polyprenyl acceptor during phototreatment is consistent with probe-mediated photoinhibition occurring via specific covalent modification of the enzyme active site. In addition, the unique mannosylated derivatives of the photoreactive probes were all donors of Man residues, through a PPM-dependent mycobacterial alpha(1-->6)mannosyltransferase, to a synthetic Manp(1-->6)-Manp-O-C(10:1) disaccharide acceptor (where Manp stands for mannopyranose). Photoactivation of probe 7 led to striking-specific inhibition of the M. smegmatis alpha(1-->6)mannosyltransferase. The present study represents the first application of photoreactive probes to the study of mycobacterial glycosyltransferases involved in LM and LAM biosynthesis. These preliminary findings suggest that the probes will prove useful in investigating the polyprenyl-dependent steps of the complex biosynthetic pathways to the mycobacterial lipoglycans, aiding in the identification of novel glycosyltransferases.
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Key Words
- benzophenone
- inhibition
- lipoarabinomannan
- mannosyltransferase
- mycobacterial
- photoprobe
- esi–ms, electrospray ionization mass spectrometry
- lam, lipoarabinomannan
- lb, luria–bertani
- lm, lipomannan
- magp, mycolyl–arabinogalactan–peptidoglycan
- man, mannose
- manlam, lam with man caps
- manp, mannopyranose
- pilam, lam with phosphoinositide caps
- pim, phosphatidyl-myo-inositol mannoside
- ppm, polyprenol monophosphomannose
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Affiliation(s)
- Mark R. Guy
- *School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Petr A. Illarionov
- *School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Sudagar S. Gurcha
- *School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Lynn G. Dover
- *School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Kevin J. C. Gibson
- *School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Paul W. Smith
- †GlaxoSmithKline Research & Development Ltd., New Frontiers Science Park North, Harlow, Essex CM19 5AW, U.K
| | - David E. Minnikin
- *School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Gurdyal S. Besra
- *School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
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10
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Cumpstey I, Butters TD, Tennant-Eyles RJ, Fairbanks AJ, France RR, Wormald MR. Synthesis of fluorescence-labelled disaccharide substrates of glucosidase II. Carbohydr Res 2004; 338:1937-49. [PMID: 14499570 DOI: 10.1016/s0008-6215(03)00255-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The fluorescence-labelled disaccharides Glcalpha(1-->3)GlcalphaOR and Glcalpha(1-->3)ManalphaOR, both substrates for the glycoprotein-processing enzyme glucosidase II, were synthesised via the use of a n-pentenyl-derived linker at the anomeric position. This allowed incorporation of a pyrenebutyric acid label, via a sequence of oxidative hydroboration, mesylation, azide displacement, reduction with concomitant global deprotection, and peptide coupling. Selective activation of a fully armed thioglycoside in the presence of n-pentenyl glycosides was readily achieved by the use of methyl triflate as promoter.
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Affiliation(s)
- Ian Cumpstey
- Dyson Perrins Laboratory, Oxford University, South Parks Road, Oxford OX1 3QY, UK
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11
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Sprung I, Carmès L, Watt GM, Flitsch SL. Synthesis of novel acceptor substrates for the dolichyl phosphate mannose synthase from yeast. Chembiochem 2003; 4:319-32. [PMID: 12672111 DOI: 10.1002/cbic.200390052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Dolichols are polyisoprenoid lipid components of mammalian membranes consisting of an average of 20 head-to-tail linked isoprene units of which the first isoprene is fully saturated. The unusual size of these lipids is intriguing and poses questions about the role of dolichol structure in biological processes. In order to probe structure and function we have synthesised potential dolichyl analogues that retain only the first two isoprene units and carry a second functional group within the terminal lipid chain. Such analogues were evaluated as substrates for a key enzyme in the dolichyl-dependent pathway of glycan biosynthesis, dolichyl phosphate mannose (Dol-P-Man) synthase. It was shown that some functional groups, including labels such as biotin, could be tolerated. When the synthetic analogues were attached to a solid support they were still substrates for the Dol-P-Man system and thus allowed the enzymatic solid-phase synthesis of glycolipids.
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Affiliation(s)
- Ines Sprung
- School of Chemistry, Centre for Protein Technology, The University of Edinburgh King's Buildings, West Mains Road Edinburgh EH9 3JJ, UK
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12
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Sprung I, Ziegler A, Flitsch SL. Enzymatic synthesis of beta-mannosyl phosphates on solid support. Chem Commun (Camb) 2002:2676-7. [PMID: 12510294 DOI: 10.1039/b206451k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthetic bifunctional analogues 4a, b and 14 of dolichol phosphate 1 were attached to solid support and were shown to be substrates for Dol-P-Man synthase.
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Affiliation(s)
- Ines Sprung
- School of Chemistry, Edinburgh Protein Interaction Centre, University of Edinburgh, King's Buildings, West Mains Road, Edinburgh, UK EH9 3JJ
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13
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France RR, Cumpstey I, Butters TD, Fairbanks AJ, Wormald MR. Fluorescence labelling of carbohydrates with 2-aminobenzamide (2AB). ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s0957-4166(00)00477-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Xing J, Forsee WT, Lamani E, Maltsev SD, Danilov LL, Shibaev VN, Schutzbach JS, Cheung HC, Jedrzejas MJ. Investigations of the active site of Saccharomyces cerevisiae dolichyl-phosphate-mannose synthase using fluorescent labeled dolichyl-phosphate derivatives. Biochemistry 2000; 39:7886-94. [PMID: 10891068 DOI: 10.1021/bi0003240] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Dolichol-phosphate mannose (Dol-P-Man) is a key mannosyl donor for the biosynthesis of N-linked oligosaccharides as well as for O-linked oligosaccharides on yeast glycoproteins, and for the synthesis of the glycosyl-phosphatidylinositol anchor found on many cell surface glycoproteins. It is synthesized by Dol-P-Man synthase which is the only glycosyltransferase in the dolichol pathway that has been expressed as an active protein, solubilized and purified in large enough quantities for structural investigations. Earlier studies showed that the enzyme is closely associated with membranes of endoplasmic reticulum with unique lipid requirements for its maximal activity. This potential target of antibiotic therapy is now being investigated at the molecular level to establish information about the structure of the enzyme as well as determine the nature and properties of the enzyme-phospholipid interactions. In this paper, we have determined the activities of the fluorescent labeled dolichyl-phosphate derivatives as well as the intramolecular distances between amino acid residues near the active site and/or the fluorophores of the substrate derivatives using fluorescence energy resonance transfer. These results also show that the conserved consensus sequence is not required by Dol-P-Man synthase neither for the recognition of Dol-P nor for the catalytic activity.
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Affiliation(s)
- J Xing
- Department of Biochemistry and Molecular Genetics and Department of Microbiology, The University of Alabama at Birmingham, 933 19th Street South, Birmingham, Alabama 35295-2041, USA
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15
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Grigorieva NY, Pinsker OA, Maltsev SD, Danilov LL, Shibaev VN, Jedrzejas MJ. Dolichyl phosphate derivatives with a fluorescent label at an internal isoprene unit. MENDELEEV COMMUNICATIONS 2000. [DOI: 10.1070/mc2000v010n03abeh001257] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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