1bpe: Difference between revisions
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[[Image:1bpe.gif|left|200px]] | [[Image:1bpe.gif|left|200px]] | ||
'''CRYSTAL STRUCTURE OF RAT DNA POLYMERASE BETA; EVIDENCE FOR A COMMON POLYMERASE MECHANISM''' | {{Structure | ||
|PDB= 1bpe |SIZE=350|CAPTION= <scene name='initialview01'>1bpe</scene>, resolution 2.9Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=DTP:2'-DEOXYADENOSINE 5'-TRIPHOSPHATE'>DTP</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/DNA-directed_DNA_polymerase DNA-directed DNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.7 2.7.7.7] | |||
|GENE= | |||
}} | |||
'''CRYSTAL STRUCTURE OF RAT DNA POLYMERASE BETA; EVIDENCE FOR A COMMON POLYMERASE MECHANISM''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1BPE is a [ | 1BPE is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BPE OCA]. | ||
==Reference== | ==Reference== | ||
Crystal structure of rat DNA polymerase beta: evidence for a common polymerase mechanism., Sawaya MR, Pelletier H, Kumar A, Wilson SH, Kraut J, Science. 1994 Jun 24;264(5167):1930-5. PMID:[http:// | Crystal structure of rat DNA polymerase beta: evidence for a common polymerase mechanism., Sawaya MR, Pelletier H, Kumar A, Wilson SH, Kraut J, Science. 1994 Jun 24;264(5167):1930-5. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7516581 7516581] | ||
[[Category: DNA-directed DNA polymerase]] | [[Category: DNA-directed DNA polymerase]] | ||
[[Category: Rattus norvegicus]] | [[Category: Rattus norvegicus]] | ||
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[[Category: nucleotidyltransferase]] | [[Category: nucleotidyltransferase]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 10:14:01 2008'' | ||
Revision as of 11:14, 20 March 2008
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| , resolution 2.9Å | |||||||
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| Ligands: | |||||||
| Activity: | DNA-directed DNA polymerase, with EC number 2.7.7.7 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF RAT DNA POLYMERASE BETA; EVIDENCE FOR A COMMON POLYMERASE MECHANISM
OverviewOverview
Structures of the 31-kilodalton catalytic domain of rat DNA polymerase beta (pol beta) and the whole 39-kilodalton enzyme were determined at 2.3 and 3.6 angstrom resolution, respectively. The 31-kilodalton domain is composed of fingers, palm, and thumb subdomains arranged to form a DNA binding channel reminiscent of the polymerase domains of the Klenow fragment of Escherichia coli DNA polymerase I, HIV-1 reverse transcriptase, and bacteriophage T7 RNA polymerase. The amino-terminal 8-kilodalton domain is attached to the fingers subdomain by a flexible hinge. The two invariant aspartates found in all polymerase sequences and implicated in catalytic activity have the same geometric arrangement within structurally similar but topologically distinct palms, indicating that the polymerases have maintained, or possibly re-evolved, a common nucleotidyl transfer mechanism. The location of Mn2+ and deoxyadenosine triphosphate in pol beta confirms the role of the invariant aspartates in metal ion and deoxynucleoside triphosphate binding.
About this StructureAbout this Structure
1BPE is a Single protein structure of sequence from Rattus norvegicus. Full crystallographic information is available from OCA.
ReferenceReference
Crystal structure of rat DNA polymerase beta: evidence for a common polymerase mechanism., Sawaya MR, Pelletier H, Kumar A, Wilson SH, Kraut J, Science. 1994 Jun 24;264(5167):1930-5. PMID:7516581
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