4g7h

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(Difference between revisions)

Revision as of 03:42, 5 August 2016

Crystal structure of Thermus thermophilus transcription initiation complex

Structural highlights

4g7h is a 16 chain structure with sequence from Thet8 and Thermus thermophilus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	4g7o, 4g7z
Gene:	rpoD, TTHA0532 (THET8)
Activity:	DNA-directed RNA polymerase, with EC number 2.7.7.6
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[RPOZ_THET8] Promotes RNA polymerase assembly. Latches the N- and C-terminal regions of the beta' subunit thereby facilitating its interaction with the beta and alpha subunits (By similarity). [RPOA_THET8] DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. [RPOC_THET8] DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. [RPOB_THET8] DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. [Q5SKW1_THET8] Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released (By similarity).[RuleBase:RU000715] Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is the primary sigma factor during exponential growth (By similarity).[HAMAP-Rule:MF_00963]

Publication Abstract from PubMed

During transcription initiation, RNA polymerase (RNAP) binds and unwinds promoter DNA to form an RNAP-promoter open complex. We have determined crystal structures at 2.9 and 3.0 A resolution of functional transcription initiation complexes comprising Thermus thermophilus RNA polymerase, sigma(A), and a promoter DNA fragment corresponding to the transcription bubble and downstream dsDNA of the RNAP-promoter open complex. The structures show that sigma recognizes the -10 element and discriminator element through interactions that include the unstacking and insertion into pockets of three DNA bases, and that RNAP recognizes the -4/+2 region through interactions that include the unstacking and insertion into a pocket of the +2 base. The structures further show that interactions between sigma and template-strand ssDNA preorganize template-strand ssDNA to engage the RNAP active center.

Structural Basis of Transcription Initiation.,Zhang Y, Feng Y, Chatterjee S, Tuske S, Ho MX, Arnold E, Ebright RH Science. 2012 Oct 18. PMID:23086998^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Zhang Y, Feng Y, Chatterjee S, Tuske S, Ho MX, Arnold E, Ebright RH. Structural Basis of Transcription Initiation. Science. 2012 Oct 18. PMID:23086998 doi:http://dx.doi.org/10.1126/science.1227786

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4g7h"

@@ Line 1: / Line 1: @@
 ==Crystal structure of Thermus thermophilus transcription initiation complex==
 <StructureSection load='4g7h' size='340' side='right' caption='[[4g7h]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4g7h]] is a 16 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus] and [http://en.wikipedia.org/wiki/Thermus_thermophilus_hb8 Thermus thermophilus hb8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4G7H OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4G7H FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4g7h]] is a 16 chain structure with sequence from [http://en.wikipedia.org/wiki/Thet8 Thet8] and [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4G7H OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4G7H FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4g7o|4g7o]], [[4g7z|4g7z]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">rpoD, TTHA0532 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=300852 Thermus thermophilus HB8])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">rpoD, TTHA0532 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=300852 THET8])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[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] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4g7h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g7h OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4g7h RCSB], [http://www.ebi.ac.uk/pdbsum/4g7h PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4g7h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g7h OCA], [http://pdbe.org/4g7h PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4g7h RCSB], [http://www.ebi.ac.uk/pdbsum/4g7h PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4g7h ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 19: / Line 20: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4g7h" style="background-color:#fffaf0;"></div>
 ==See Also==
 *[[RNA polymerase|RNA polymerase]]
+*[[Sigma factor|Sigma factor]]
 == References ==
 <references/>
@@ Line 28: / Line 31: @@
 [[Category: DNA-directed RNA polymerase]]
 [[Category: Thermus thermophilus]]
-[[Category: Thermus thermophilus hb8]]
+[[Category: Thet8]]
 [[Category: Ebright, R H]]
 [[Category: Zhang, Y]]

4g7h

From Proteopedia

Revision as of 03:42, 5 August 2016

Crystal structure of Thermus thermophilus transcription initiation complex

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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