3e1y

From Proteopedia

(Difference between revisions)

Revision as of 12:28, 25 December 2014

Crystal structure of human eRF1/eRF3 complex

Structural highlights

3e1y is a 8 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	3e20
Gene:	ETF1, ERF1, RF1, SUP45L1 (Homo sapiens), GSPT1, ERF3A (Homo sapiens)
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[ERF1_HUMAN] Directs the termination of nascent peptide synthesis (translation) in response to the termination codons UAA, UAG and UGA. Component of the transient SURF complex which recruits UPF1 to stalled ribosomes in the context of nonsense-mediated decay (NMD) of mRNAs containing premature stop codons.^[1] [ERF3A_HUMAN] Involved in translation termination in response to the termination codons UAA, UAG and UGA. Stimulates the activity of ERF1. Involved in regulation of mammalian cell growth. Component of the transient SURF complex which recruits UPF1 to stalled ribosomes in the context of nonsense-mediated decay (NMD) of mRNAs containing premature stop codons.

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

Eukaryotic translation termination is mediated by two interacting release factors, eRF1 and eRF3, which act cooperatively to ensure efficient stop codon recognition and fast polypeptide release. The crystal structures of human and Schizosaccharomyces pombe full-length eRF1 in complex with eRF3 lacking the GTPase domain revealed details of the interaction between these two factors and marked conformational changes in eRF1 that occur upon binding to eRF3, leading eRF1 to resemble a tRNA molecule. Small-angle X-ray scattering analysis of the eRF1/eRF3/GTP complex suggested that eRF1's M domain contacts eRF3's GTPase domain. Consistently, mutation of Arg192, which is predicted to come in close contact with the switch regions of eRF3, revealed its important role for eRF1's stimulatory effect on eRF3's GTPase activity. An ATP molecule used as a crystallization additive was bound in eRF1's putative decoding area. Mutational analysis of the ATP-binding site shed light on the mechanism of stop codon recognition by eRF1.

Structural insights into eRF3 and stop codon recognition by eRF1.,Cheng Z, Saito K, Pisarev AV, Wada M, Pisareva VP, Pestova TV, Gajda M, Round A, Kong C, Lim M, Nakamura Y, Svergun DI, Ito K, Song H Genes Dev. 2009 May 1;23(9):1106-18. PMID:19417105^[2]

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

References

↑ Frolova L, Le Goff X, Rasmussen HH, Cheperegin S, Drugeon G, Kress M, Arman I, Haenni AL, Celis JE, Philippe M, et al.. A highly conserved eukaryotic protein family possessing properties of polypeptide chain release factor. Nature. 1994 Dec 15;372(6507):701-3. PMID:7990965 doi:http://dx.doi.org/10.1038/372701a0
↑ Cheng Z, Saito K, Pisarev AV, Wada M, Pisareva VP, Pestova TV, Gajda M, Round A, Kong C, Lim M, Nakamura Y, Svergun DI, Ito K, Song H. Structural insights into eRF3 and stop codon recognition by eRF1. Genes Dev. 2009 May 1;23(9):1106-18. PMID:19417105 doi:23/9/1106

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3e1y"

@@ Line 8: / Line 8: @@
 <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=3e1y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3e1y OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3e1y RCSB], [http://www.ebi.ac.uk/pdbsum/3e1y PDBsum]</span></td></tr>
 </table>
+== Function ==
+[[http://www.uniprot.org/uniprot/ERF1_HUMAN ERF1_HUMAN]] Directs the termination of nascent peptide synthesis (translation) in response to the termination codons UAA, UAG and UGA. Component of the transient SURF complex which recruits UPF1 to stalled ribosomes in the context of nonsense-mediated decay (NMD) of mRNAs containing premature stop codons.<ref>PMID:7990965</ref>  [[http://www.uniprot.org/uniprot/ERF3A_HUMAN ERF3A_HUMAN]] Involved in translation termination in response to the termination codons UAA, UAG and UGA. Stimulates the activity of ERF1. Involved in regulation of mammalian cell growth. Component of the transient SURF complex which recruits UPF1 to stalled ribosomes in the context of nonsense-mediated decay (NMD) of mRNAs containing premature stop codons.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]

3e1y

From Proteopedia

Revision as of 12:28, 25 December 2014

Crystal structure of human eRF1/eRF3 complex

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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