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Pitié M, Pratviel G. Activation of DNA Carbon−Hydrogen Bonds by Metal Complexes. Chem Rev 2010; 110:1018-59. [DOI: 10.1021/cr900247m] [Citation(s) in RCA: 138] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Marguerite Pitié
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, F-31077 Toulouse, France, and Université de Toulouse, Toulouse, France
| | - Geneviève Pratviel
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, F-31077 Toulouse, France, and Université de Toulouse, Toulouse, France
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Sergeyev DS, Zarytova VF. Interaction of bleomycin and its oligonucleotide derivatives with nucleic acids. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc1996v065n04abeh000216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Cagir A, Tao ZF, Sucheck SJ, Hecht SM. Solid-phase synthesis and biochemical evaluation of conformationally constrained analogues of deglycobleomycin A5. Bioorg Med Chem 2003; 11:5179-87. [PMID: 14604681 DOI: 10.1016/j.bmc.2003.08.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Deglycobleomycin binds to and degrades the self-complementary oligonucleotide d(CGCTAGCG)(2) in a sequence selective fashion. A previous modeling study [J. Am. Chem. Soc. 120, (1998), 7450] had shown that, during binding to double stranded DNA, the conformation of the methylvalerate domain of deglycoBLM approximated that of S-proline. In the belief that an analogue of deglycoBLM structurally constrained to mimic the DNA-bound conformation might exhibit facilitated DNA binding and cleavage, an analogue of deglycoBLM was prepared in which the methylvalerate moiety was replaced by S-proline. This deglycoBLM analogue, as well as the related analogue containing R-proline, was synthesized on a TentaGel resin. Both of the analogues were found to be capable of binding Fe(2+) and activating O(2) for transfer to styrene. However, both deglycoBLM analogues exhibited diminished abilities to effect the relaxation of supercoiled plasmid DNA, and neither mediated sequence selective DNA cleavage.
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Affiliation(s)
- Ali Cagir
- Departments of Chemistry and Biology, University of Virginia, Charlottesville, VA 22901, USA
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Boger DL, Aquila BM, Tse WC, Searcey M. Synthesis and evaluation of a novel bleomycin A2 analogue: continuing assessment of the linker domain. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(00)01633-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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6
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Synthesis, spectroscopic, redox properties, and DNA cleavage activity of low-spin iron(III) complexes of bleomycin analogues. Inorganica Chim Acta 1999. [DOI: 10.1016/s0020-1693(99)00279-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Claussen CA, Long EC. Nucleic Acid recognition by metal complexes of bleomycin. Chem Rev 1999; 99:2797-816. [PMID: 11749501 DOI: 10.1021/cr980449z] [Citation(s) in RCA: 207] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C A Claussen
- Department of Chemistry, Purdue School of Science, Indiana University Purdue University-Indianapolis, Indianapolis, Indiana 46202-3274
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Zuber G, Quada JC, Hecht SM. Sequence Selective Cleavage of a DNA Octanucleotide by Chlorinated Bithiazoles and Bleomycins. J Am Chem Soc 1998. [DOI: 10.1021/ja981937r] [Citation(s) in RCA: 195] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guy Zuber
- Departments of Chemistry and Biology University of Virginia, Charlottesville, Virginia 22901
| | - James C. Quada
- Departments of Chemistry and Biology University of Virginia, Charlottesville, Virginia 22901
| | - Sidney M. Hecht
- Departments of Chemistry and Biology University of Virginia, Charlottesville, Virginia 22901
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Affiliation(s)
- Richard M. Burger
- Public Health Research Institute, 455 First Avenue, New York, New York 10016
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Boger DL, Teramoto S, Cai H. N-methyl threonine analogues of deglycobleomycin A2: synthesis and evaluation. Bioorg Med Chem 1997; 5:1577-89. [PMID: 9313863 DOI: 10.1016/s0968-0896(97)00107-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The synthesis of 5 and its D-allo-threonine epimer 6 and the comparison of their DNA cleavage efficiency and selectivity with that of deglycobleomycin A2 (3) are detailed. The studies illustrate that N-methylation of the L-threonine subunit within deglycobleomycin A2 dramatically reduces the DNA cleavage efficiency (10-15-fold), weakens and nearly abolishes the inherent DNA cleavage selectivity, but has little effect on the inherent oxidation capabilities of the activated Fe(III) complexes. The results are consistent with a previously unrecognized prominent role for the threonine NH and the potential importance of a hydrogen bond to the Fe(III) hydroperoxide complex of bleomycin or a subsequent activated complex implicated in recent structural models.
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Affiliation(s)
- D L Boger
- Department of Chemistry, Scripps Research Institute, La Jolla, CA 92037, USA
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Boger DL, Teramoto S, Cai H. Synthesis and evaluation of deglycobleomycin A2 analogues containing a tertiary N-methyl amide and simple ester replacement for the L-histidine secondary amide: direct functional characterization of the requirement for secondary amide metal complexation. Bioorg Med Chem 1996; 4:179-93. [PMID: 8814877 DOI: 10.1016/0968-0896(95)00183-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The synthesis and comparative examination of 3-5, analogues of deglycobleomycin A2 (2) which address the inferred importance of the L-histidine secondary amide directly, are detailed. The agent 3 lacks only the L-histidine beta-hydroxy group of deglycobleomycin A2 and the corresponding agents 4 and 5 incorporate a tertiary N-methyl amide and simple ester in place of the L-histidine secondary amide. The DNA cleavage properties of 3 proved essentially indistinguishable from those of deglycobleomycin A2 (2) confirming that the distinctions between bleomycin A2 (1) and deglycobleomycin (2) are due to the removal of the disaccharide and not the introduction of the L-histidine free beta-hydroxy group. The agents 4 and 5 containing a tertiary N-methyl amide and ester in place of the L-histidine secondary amide were found to cleave duplex DNA but to do so in a nonsequence selective fashion with a substantially reduced efficiency and a diminished double to single strand cleavage ratio that are only slightly greater than that of free iron itself. These latter observations establish the functional requirement for the L-histidine secondary amide and are consistent with the proposals that the L-histidine deprotonated secondary amide is required for functional metal chelation and activity.
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Affiliation(s)
- D L Boger
- Department of Chemistry, Scripps Research Institute, La Jolla, CA 92037, U.S.A
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Boger DL, Ramsey TM, Cai H. Synthesis and evaluation of potential N pi and N sigma metal chelation sites within the beta-hydroxy-L-histidine subunit of bleomycin A2: functional characterization of imidazole N pi metal complexation. Bioorg Med Chem 1996; 4:195-207. [PMID: 8814878 DOI: 10.1016/0968-0896(95)00184-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The synthesis and evaluation of 4 and 5, fully functionalized deglycobleomycin A2 (2) analogues incorporating an oxazole and a pyrrole in place of the beta-hydroxy-L-histidine imidazole, are detailed. The oxazole agent is only capable of Npi metal complexation through a form related to the N1-H imidazole tautomer of bleomycin A2 (1) while the pyrrole agent may potentially mimic the Nsigma metal complexation capabilities of the imidazole N3-H tautomer. Metal complexes (Fe-II, Fe-III) of 4 and 5 were found to cleave duplex DNA in the presence of O2 (Fe-II) or H2O2 (Fe-III). The oxazole agent 4 which is incapable of Nsigma metal chelation was found to behave analogous to, albeit slightly less effectively than, deglycobleomycin A2 resulting in the characteristic 5'-GC/5'-GT sequence selective cleavage of duplex DNA directly confirming that imidazole/oxazole Npi metal chelation is sufficient for functional reactivity. Importantly, the effective substitution of the oxazole O-1 for the histidine N-1 further illustrates that this group does not require deprotonation upon metal complexation, oxygen activation, or the ensuing oxidation reactions, that the functional bleomycin A2 tautomer is the imidazole N'-H tautomer, and that the imidazole N'-H functionality is not contributing to the polynucleotide recognition through H-bonding to the phosphate backbone or nucleotide bases. In contrast, the pyrrole agent 5 which is incapable of Npi metal chelation, but possesses the capabilities of functioning as a Nsigma metal donor was also found to cleave duplex DNA, but does so in a nonsequence selective fashion with a significantly reduced efficiency and a diminished double to single strand cleavage ratio both only slightly above that of background iron itself. These observations are analogous to those made with 3 which lacks the imidazole altogether and further support the observations that Nsigma coordination, not Npi coordination, of the imidazole is required for the functional activity of bleomycin A2.
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Affiliation(s)
- D L Boger
- Department of Chemistry, Scripps Research Institute, La Jolla, CA 92037, U.S.A
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Boger DL, Colletti SL, Teramoto S, Ramsey TM, Zhou J. Synthesis of key analogs of bleomycin A2 that permit a systematic evaluation of the linker region: identification of an exceptionally prominent role for the L-threonine substituent. Bioorg Med Chem 1995; 3:1281-95. [PMID: 8564421 DOI: 10.1016/0968-0896(95)00113-u] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The synthesis of a full series of analogs 2b-k of deglycobleomycin A2 (2a) containing systematic variations in the linker domain of bleomycin A2 (1) is described. The agents 2b-k, which are not accessible through structural modification of 1 or 2a, constitute key substructure analogs incorporating deep-seated structural modifications in the linker domain capable of delineating the contribution of the individual backbone substituents to the DNA cleavage efficiency, characteristic DNA cleavage selectivity, and double strand to single strand DNA cleavage ratio. The comparative examination of the DNA cleavage properties of the Fe(II) and Fe(III) complexes of 2a-k upon activation by O2-thiol or H2O2, respectively, revealed several characteristic features and trends. First, none of the substituents affect the characteristic 5'-GC, 5'-GT > 5'-GA DNA cleavage selectivity of bleomycin A2. In contrast, an exceptionally prominent role for the L-threonine substituent and an important role for the C4-methyl substituent of the (2S,3S,4R)-4-amino-3-hydroxy-2-methylpentanoic acid subunit were observed on the DNA cleavage efficiency of the agents. Similarly, the L-threonine substituent was found to substantially increase the ratio of double strand to single strand DNA cleavage events (2-3 times). In a w794 DNA cleavage assay, shortening the linker region by two carbons resulted in an exceptionally large reduction in DNA cleavage efficiency (125 times) and provided an agent that was only 1.3 times more effective than Fe(III) indicating that this deep-seated modification essentially destroys the DNA cleavage capabilities of the agent. The L-threonine substituent contributes in an exceptional manner, and its removal resulted in a 25 times reduction in DNA cleavage efficiency. A substantial contribution was observed for the C4-methyl group on the 4-aminobutanoic acid subunit and its removal resulted in a 7 times reduction in DNA cleavage efficiency. Little effect for the C3-hydroxyl and C2-methyl substituents on the 4- aminobutanoic acid subunit was observed (0-2.5 times) and even their inversion of stereochemistry had little impact on DNA cleavage efficiency or selectivity. Notably, the magnitude of the previously unappreciated L-threonine substituent contribution to the DNA cleavage efficiency and on the ratio of double to single strand DNA cleavage events is the largest effect observed to date including the well recognized disaccharide potentiation (6 times) of the DNA cleavage properties. Consequently, the past role and relative importance of the L-threonine subunit and substituent has been underestimated. Moreover, the cumulative effect of the two important linker chain substituents clearly illustrate that the functional role of this domain is much more important than its simply serving as a linker.
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Affiliation(s)
- D L Boger
- Department of Chemistry, Scripps Research Institute, La Jolla, CA 92037, USA
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Pratviel G, Bernadou J, Meunier B. Die CH-Bindungen der Zuckerbausteine von DNA als Angriffspunkte für chemische Nucleasen und Wirkstoffe. Angew Chem Int Ed Engl 1995. [DOI: 10.1002/ange.19951070705] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kane SA, Hecht SM. Polynucleotide recognition and degradation by bleomycin. PROGRESS IN NUCLEIC ACID RESEARCH AND MOLECULAR BIOLOGY 1994; 49:313-52. [PMID: 7532315 DOI: 10.1016/s0079-6603(08)60054-9] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- S A Kane
- Department of Chemistry, University of Virginia, Charlottesville 22901
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