2r4g

From Proteopedia

(Difference between revisions)

Revision as of 04:13, 2 July 2021

The high resolution structure of the RNA-binding domain of telomerase

Structural highlights

2r4g is a 1 chain structure with sequence from Tetth. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	TERT (TETTH)
Activity:	RNA-directed DNA polymerase, with EC number 2.7.7.49
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[TERT_TETTH] Telomerase is a ribonucleoprotein enzyme essential for the replication of chromosome termini in most eukaryotes. It elongates telomeres. It is a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme (By similarity).

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Telomerase, a ribonucleoprotein complex, replicates the linear ends of eukaryotic chromosomes, thus taking care of the "end of replication problem." TERT contains an essential and universally conserved domain (TRBD) that makes extensive contacts with the RNA (TER) component of the holoenzyme, and this interaction is thought to facilitate TERT/TER assembly and repeat-addition processivity. Here, we present a high-resolution structure of TRBD from Tetrahymena thermophila. The nearly all-helical structure comprises a nucleic acid-binding fold suitable for TER binding. An extended pocket on the surface of the protein, formed by two conserved motifs (CP and T motifs) comprises TRBD's RNA-binding pocket. The width and the chemical nature of this pocket suggest that it binds both single- and double-stranded RNA, possibly stem I, and the template boundary element (TBE). Moreover, the structure provides clues into the role of this domain in TERT/TER stabilization and telomerase repeat-addition processivity.

Structure of the RNA-binding domain of telomerase: implications for RNA recognition and binding.,Rouda S, Skordalakes E Structure. 2007 Nov;15(11):1403-12. PMID:17997966^[1]

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

References

↑ Rouda S, Skordalakes E. Structure of the RNA-binding domain of telomerase: implications for RNA recognition and binding. Structure. 2007 Nov;15(11):1403-12. PMID:17997966 doi:10.1016/j.str.2007.09.007

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2r4g"

@@ Line 1: / Line 1: @@
 ==The high resolution structure of the RNA-binding domain of telomerase==
-<StructureSection load='2r4g' size='340' side='right' caption='[[2r4g]], [[Resolution|resolution]] 1.71&Aring;' scene=''>
+<StructureSection load='2r4g' size='340' side='right'caption='[[2r4g]], [[Resolution|resolution]] 1.71&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2r4g]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Tetth Tetth]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2R4G OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2R4G FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2r4g]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Tetth Tetth]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2R4G OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2R4G FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BR:BROMIDE+ION'>BR</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BR:BROMIDE+ION'>BR</scene></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">TERT ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=5911 TETTH])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">TERT ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=5911 TETTH])</td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA-directed_DNA_polymerase RNA-directed DNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.49 2.7.7.49] </span></td></tr>
+<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/RNA-directed_DNA_polymerase RNA-directed DNA polymerase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.49 2.7.7.49] </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=2r4g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2r4g OCA], [http://pdbe.org/2r4g PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2r4g RCSB], [http://www.ebi.ac.uk/pdbsum/2r4g PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2r4g ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2r4g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2r4g OCA], [https://pdbe.org/2r4g PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2r4g RCSB], [https://www.ebi.ac.uk/pdbsum/2r4g PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2r4g ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/TERT_TETTH TERT_TETTH]] Telomerase is a ribonucleoprotein enzyme essential for the replication of chromosome termini in most eukaryotes. It elongates telomeres. It is a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme (By similarity).
+[[https://www.uniprot.org/uniprot/TERT_TETTH TERT_TETTH]] Telomerase is a ribonucleoprotein enzyme essential for the replication of chromosome termini in most eukaryotes. It elongates telomeres. It is a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme (By similarity).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 32: / Line 32: @@
 ==See Also==
-*[[Reverse transcriptase|Reverse transcriptase]]
 *[[Telomerase|Telomerase]]
 *[[Telomerase 3D structures|Telomerase 3D structures]]
@@ Line 39: / Line 38: @@
 __TOC__
 </StructureSection>
+[[Category: Large Structures]]
 [[Category: RNA-directed DNA polymerase]]
 [[Category: Tetth]]

2r4g

From Proteopedia

Revision as of 04:13, 2 July 2021

The high resolution structure of the RNA-binding domain of telomerase

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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