1s7a
From Proteopedia
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|ACTIVITY= | |ACTIVITY= | ||
|GENE= SSB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |GENE= SSB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY=[[1s79|1S79]], [[1owx|1OWX]] | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1s7a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1s7a OCA], [http://www.ebi.ac.uk/pdbsum/1s7a PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1s7a RCSB]</span> | ||
}} | }} | ||
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[[Category: winged helix domain]] | [[Category: winged helix domain]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 23:38:25 2008'' |
Revision as of 20:38, 30 March 2008
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| Gene: | SSB (Homo sapiens) | ||||||
| Related: | 1S79, 1OWX
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
NMR structure of the La motif of human La protein
Overview
The La protein is a conserved component of eukaryotic ribonucleoprotein complexes that binds the 3' poly(U)-rich elements of nascent RNA polymerase III (pol III) transcripts to assist folding and maturation. This specific recognition is mediated by the N-terminal domain (NTD) of La, which comprises a La motif and an RNA recognition motif (RRM). We have determined the solution structures of both domains and show that the La motif adopts an alpha/beta fold that comprises a winged-helix motif elaborated by the insertion of three helices. Chemical shift mapping experiments show that these insertions are involved in RNA interactions. They further delineate a distinct surface patch on each domain-containing both basic and aromatic residues-that interacts with RNA and accounts for the cooperative binding of short oligonucleotides exhibited by the La NTD.
About this Structure
1S7A is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structural analysis of cooperative RNA binding by the La motif and central RRM domain of human La protein., Alfano C, Sanfelice D, Babon J, Kelly G, Jacks A, Curry S, Conte MR, Nat Struct Mol Biol. 2004 Apr;11(4):323-9. Epub 2004 Mar 7. PMID:15004549
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