4n0a: Difference between revisions

==Function==

[[http://www.uniprot.org/uniprot/LSM3_YEAST LSM3_YEAST]] Component of LSm protein complexes, which are involved in RNA processing and may function in a chaperone-like manner. Component of the cytoplasmic LSM1-LSM7 complex which is thought to be involved in mRNA degradation by activating the decapping step. Component of the nuclear LSM2-LSM8 complex, which is involved in splicing of nuclear mRNAs. LSM2-LSM8 associates with multiple snRNP complexes containing the U6 snRNA (U4/U6 snRNP, U4/U6.U5 snRNP, and free U6 snRNP). It binds directly to the U6 snRNA and plays a role in the biogenesis and stability of the U6 snRNP and U4/U6 snRNP complexes. It probably also is involved degradation of nuclear pre-mRNA by targeting them for decapping. LSM3 binds specifically to the 3'-terminal U-tract of U6 snRNA. LSM2-LSM8 probably is involved in processing of pre-tRNAs, pre-rRNAs and U3 snoRNA. LSM3, probably in a complex that contains LSM2-LSM7 but not LSM1 or LSM8, associates with the precursor of the RNA component of RNase P (pre-P RNA) and may be involved in maturing pre-P RNA. LSM3 is required for processing of pre-tRNAs, pre-rRNAs and U3 snoRNA.<ref>PMID:7744014</ref> <ref>PMID:10747033</ref> <ref>PMID:10761922</ref> <ref>PMID:12077351</ref> <ref>PMID:12438310</ref> <ref>PMID:15485930</ref>  [[http://www.uniprot.org/uniprot/PAT1_YEAST PAT1_YEAST]] Activator of decapping that functions as a general and active mechanism of translational repression and required for P-body formation. First decay factor recruited to mRNA, at a time when the mRNA is still associated with translation factors. Subsequently, PAT1 recruits the hepta-heterodimer LSM1-LSM7 complex to P-bodies. In association with the LSM1-LSM7 complex, stabilizes the 3' terminus of mRNAs. This association is also required for mosaic virus genomic RNA translation. Modulates the rates of mRNA-decapping that occur following deadenylation. Might be required for promoting the formation or the stabilization of the preinitiation translation complexes. Required for 40S ribosomal subunit joining to capped and/or polyadenylated mRNA. With other P-body components, enhances the formation of retrotransposition-competent Ty1 virus-like particles. Necessary for accurate chromosome transmission during cell division.<ref>PMID:8816497</ref> <ref>PMID:8972867</ref> <ref>PMID:10523645</ref> <ref>PMID:10394921</ref> <ref>PMID:10747033</ref> <ref>PMID:10779343</ref> <ref>PMID:10913177</ref> <ref>PMID:11027264</ref> <ref>PMID:10761922</ref> <ref>PMID:11514438</ref> <ref>PMID:12773554</ref> <ref>PMID:16179257</ref> <ref>PMID:17875743</ref> <ref>PMID:17429074</ref> <ref>PMID:17513695</ref> <ref>PMID:18086885</ref> <ref>PMID:19901074</ref> <ref>PMID:20832728</ref> [[http://www.uniprot.org/uniprot/LSM2_YEAST LSM2_YEAST]] Component of LSm protein complexes, which are involved in RNA processing and may function in a chaperone-like manner. Component of the cytoplasmic LSM1-LSM7 complex which is thought to be involved in mRNA degradation by activating the decapping step. Component of the nuclear LSM2-LSM8 complex, which is involved in splicing of nuclear mRNAs. LSM2-LSM8 associates with multiple snRNP complexes containing the U6 snRNA (U4/U6 snRNP, U4/U6.U5 snRNP, and free U6 snRNP). It binds directly to the U6 snRNA and plays a role in the biogenesis and stability of the U6 snRNP and U4/U6 snRNP complexes. It probably also is involved degradation of nuclear pre-mRNA by targeting them for decapping. LSM2 binds specifically to the 3'-terminal U-tract of U6 snRNA. LSM2-LSM8 probably is involved in processing of pre-tRNAs, pre-rRNAs and U3 snoRNA. LSM2, probably in a complex that contains LSM2-LSM7 but not LSM1 or LSM8, associates with the precursor of the RNA component of RNase P (pre-P RNA) and may be involved in maturing pre-P RNA. LSM2 is required for processing of pre-tRNAs, pre-rRNAs and U3 snoRNA.<ref>PMID:10747033</ref> <ref>PMID:12077351</ref> <ref>PMID:12438310</ref> <ref>PMID:14627812</ref> <ref>PMID:15485930</ref>

==About this Structure==

[[4n0a]] is a 10 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4N0A OCA].

 

==Reference==

<references group="xtra"/><references/>

[[Category: Wu, D H.]]

[[Category: Decapping activator]]

[[Category: Rna binding protein]]