2e2i: Difference between revisions
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'''RNA polymerase II elongation complex in 5 mM Mg+2 with 2'-dGTP''' | {{Structure | ||
|PDB= 2e2i |SIZE=350|CAPTION= <scene name='initialview01'>2e2i</scene>, resolution 3.41Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=DGT:2'-DEOXYGUANOSINE-5'-TRIPHOSPHATE'>DGT</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/DNA-directed_RNA_polymerase DNA-directed RNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.6 2.7.7.6] | |||
|GENE= | |||
}} | |||
'''RNA polymerase II elongation complex in 5 mM Mg+2 with 2'-dGTP''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
2E2I is a [ | 2E2I is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2E2I OCA]. | ||
==Reference== | ==Reference== | ||
Structural basis of transcription: role of the trigger loop in substrate specificity and catalysis., Wang D, Bushnell DA, Westover KD, Kaplan CD, Kornberg RD, Cell. 2006 Dec 1;127(5):941-54. PMID:[http:// | Structural basis of transcription: role of the trigger loop in substrate specificity and catalysis., Wang D, Bushnell DA, Westover KD, Kaplan CD, Kornberg RD, Cell. 2006 Dec 1;127(5):941-54. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17129781 17129781] | ||
[[Category: DNA-directed RNA polymerase]] | [[Category: DNA-directed RNA polymerase]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: transcription]] | [[Category: transcription]] | ||
''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 16:34:28 2008'' | ||
Revision as of 17:34, 20 March 2008
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| , resolution 3.41Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , and | ||||||
| Activity: | DNA-directed RNA polymerase, with EC number 2.7.7.6 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
RNA polymerase II elongation complex in 5 mM Mg+2 with 2'-dGTP
OverviewOverview
New structures of RNA polymerase II (pol II) transcribing complexes reveal a likely key to transcription. The trigger loop swings beneath a correct nucleoside triphosphate (NTP) in the nucleotide addition site, closing off the active center and forming an extensive network of interactions with the NTP base, sugar, phosphates, and additional pol II residues. A histidine side chain in the trigger loop, precisely positioned by these interactions, may literally "trigger" phosphodiester bond formation. Recognition and catalysis are thus coupled, ensuring the fidelity of transcription.
About this StructureAbout this Structure
2E2I is a Protein complex structure of sequences from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.
ReferenceReference
Structural basis of transcription: role of the trigger loop in substrate specificity and catalysis., Wang D, Bushnell DA, Westover KD, Kaplan CD, Kornberg RD, Cell. 2006 Dec 1;127(5):941-54. PMID:17129781
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