2r4g
From Proteopedia
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|PDB= 2r4g |SIZE=350|CAPTION= <scene name='initialview01'>2r4g</scene>, resolution 1.71Å | |PDB= 2r4g |SIZE=350|CAPTION= <scene name='initialview01'>2r4g</scene>, resolution 1.71Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=BR:BROMIDE ION'>BR</scene> | + | |LIGAND= <scene name='pdbligand=BR:BROMIDE+ION'>BR</scene> |
| - | |ACTIVITY= [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] | + | |ACTIVITY= <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> |
|GENE= TERT ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=5911 Tetrahymena thermophila]) | |GENE= TERT ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=5911 Tetrahymena thermophila]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<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://www.ebi.ac.uk/pdbsum/2r4g PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2r4g RCSB]</span> | ||
}} | }} | ||
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[[Category: Rouda, S.]] | [[Category: Rouda, S.]] | ||
[[Category: Skordalakes, E.]] | [[Category: Skordalakes, E.]] | ||
| - | [[Category: BR]] | ||
[[Category: chromosomal protein]] | [[Category: chromosomal protein]] | ||
[[Category: dna-binding]] | [[Category: dna-binding]] | ||
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[[Category: transferase]] | [[Category: transferase]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 04:56:24 2008'' |
Revision as of 01:56, 31 March 2008
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| , resolution 1.71Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Gene: | TERT (Tetrahymena thermophila) | ||||||
| Activity: | RNA-directed DNA polymerase, with EC number 2.7.7.49 | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
The high resolution structure of the RNA-binding domain of telomerase
Overview
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.
About this Structure
2R4G is a Single protein structure of sequence from Tetrahymena thermophila. Full crystallographic information is available from OCA.
Reference
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
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