LSM3

U6 snRNA-associated Sm-like protein LSm3 is a protein that in humans is encoded by the LSM3 gene.[4][5]

LSM3
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 3JCR
Identifiers
Aliases	LSM3, SMX4, USS2, YLR438C, LSM3 homolog, U6 small nuclear RNA and mRNA degradation associated
External IDs	OMIM: 607283 MGI: 1914928 HomoloGene: 6548 GeneCards: LSM3
Gene location (Human) Chr. Chromosome 3 (human)[1] Band 3p25.1 Start 14,178,817 bp[1] End 14,201,122 bp[1]
Gene ontology Molecular function • GO:0001948 protein binding • RNA binding Cellular component • U6 snRNP • cytosol • Lsm1-7-Pat1 complex • catalytic step 2 spliceosome • P-body • U4/U6 x U5 tri-snRNP complex • spliceosomal complex • precatalytic spliceosome • cell nucleus • nucleoplasm • U2-type precatalytic spliceosome • Lsm2-8 complex Biological process • mRNA processing • cytoplasmic mRNA processing body assembly • exonucleolytic nuclear-transcribed mRNA catabolic process involved in deadenylation-dependent decay • RNA splicing • mRNA splicing, via spliceosome • nuclear-transcribed mRNA catabolic process Sources:Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	27258	67678
Ensembl	ENSG00000170860	n/a
UniProt	P62310	P62311
RefSeq (mRNA)	NM_014463	NM_026309
RefSeq (protein)	NP_055278	NP_080585
Location (UCSC)	Chr 3: 14.18 – 14.2 Mb	n/a
PubMed search	[2]	[3]
Wikidata
View/Edit Human View/Edit Mouse

Function

Sm-like proteins were identified in a variety of organisms based on sequence homology with the Sm protein family (see SNRPD2; MIM 601061). Sm-like proteins contain the Sm sequence motif, which consists of 2 regions separated by a linker of variable length that folds as a loop. The Sm-like proteins are thought to form a stable heteromer present in tri-snRNP particles, which are important for pre-mRNA splicing.[supplied by OMIM][5]

Interactions

LSM3 has been shown to interact with LSM2[6][7][8][9] and LSM10.[6][8]

References

1. GRCh38: Ensembl release 89: ENSG00000170860 - Ensembl, May 2017
2. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
3. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
4. Salgado-Garrido J, Bragado-Nilsson E, Kandels-Lewis S, Séraphin B (Jun 1999). "Sm and Sm-like proteins assemble in two related complexes of deep evolutionary origin". The EMBO Journal. 18 (12): 3451–62. doi:10.1093/emboj/18.12.3451. PMC 1171424. PMID 10369684.
5. "Entrez Gene: LSM3 LSM3 homolog, U6 small nuclear RNA associated (S. cerevisiae)".
6. Lehner B, Sanderson CM (Jul 2004). "A protein interaction framework for human mRNA degradation". Genome Research. 14 (7): 1315–23. doi:10.1101/gr.2122004. PMC 442147. PMID 15231747.
7. Lehner B, Semple JI, Brown SE, Counsell D, Campbell RD, Sanderson CM (Jan 2004). "Analysis of a high-throughput yeast two-hybrid system and its use to predict the function of intracellular proteins encoded within the human MHC class III region". Genomics. 83 (1): 153–67. doi:10.1016/S0888-7543(03)00235-0. PMID 14667819.
8. Rual JF, Venkatesan K, Hao T, Hirozane-Kishikawa T, Dricot A, Li N, Berriz GF, Gibbons FD, Dreze M, Ayivi-Guedehoussou N, Klitgord N, Simon C, Boxem M, Milstein S, Rosenberg J, Goldberg DS, Zhang LV, Wong SL, Franklin G, Li S, Albala JS, Lim J, Fraughton C, Llamosas E, Cevik S, Bex C, Lamesch P, Sikorski RS, Vandenhaute J, Zoghbi HY, Smolyar A, Bosak S, Sequerra R, Doucette-Stamm L, Cusick ME, Hill DE, Roth FP, Vidal M (Oct 2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. Bibcode:2005Natur.437.1173R. doi:10.1038/nature04209. PMID 16189514.
9. Stelzl U, Worm U, Lalowski M, Haenig C, Brembeck FH, Goehler H, Stroedicke M, Zenkner M, Schoenherr A, Koeppen S, Timm J, Mintzlaff S, Abraham C, Bock N, Kietzmann S, Goedde A, Toksöz E, Droege A, Krobitsch S, Korn B, Birchmeier W, Lehrach H, Wanker EE (Sep 2005). "A human protein-protein interaction network: a resource for annotating the proteome". Cell. 122 (6): 957–68. doi:10.1016/j.cell.2005.08.029. hdl:11858/00-001M-0000-0010-8592-0. PMID 16169070.

Further reading

• Achsel T, Brahms H, Kastner B, Bachi A, Wilm M, Lührmann R (Oct 1999). "A doughnut-shaped heteromer of human Sm-like proteins binds to the 3'-end of U6 snRNA, thereby facilitating U4/U6 duplex formation in vitro". The EMBO Journal. 18 (20): 5789–802. doi:10.1093/emboj/18.20.5789. PMC 1171645. PMID 10523320.
• Friesen WJ, Dreyfuss G (Aug 2000). "Specific sequences of the Sm and Sm-like (Lsm) proteins mediate their interaction with the spinal muscular atrophy disease gene product (SMN)". The Journal of Biological Chemistry. 275 (34): 26370–5. doi:10.1074/jbc.M003299200. PMID 10851237.
• Eystathioy T, Peebles CL, Hamel JC, Vaughn JH, Chan EK (Mar 2002). "Autoantibody to hLSm4 and the heptameric LSm complex in anti-Sm sera". Arthritis and Rheumatism. 46 (3): 726–34. doi:10.1002/art.10220. PMID 11920408.
• Jurica MS, Licklider LJ, Gygi SR, Grigorieff N, Moore MJ (Apr 2002). "Purification and characterization of native spliceosomes suitable for three-dimensional structural analysis". RNA. 8 (4): 426–39. doi:10.1017/S1355838202021088. PMC 1370266. PMID 11991638.
• Ingelfinger D, Arndt-Jovin DJ, Lührmann R, Achsel T (Dec 2002). "The human LSm1-7 proteins colocalize with the mRNA-degrading enzymes Dcp1/2 and Xrnl in distinct cytoplasmic foci". RNA. 8 (12): 1489–501. doi:10.1017/S1355838202021726 (inactive 2020-05-21). PMC 1370355. PMID 12515382.
• Lehner B, Semple JI, Brown SE, Counsell D, Campbell RD, Sanderson CM (Jan 2004). "Analysis of a high-throughput yeast two-hybrid system and its use to predict the function of intracellular proteins encoded within the human MHC class III region". Genomics. 83 (1): 153–67. doi:10.1016/S0888-7543(03)00235-0. PMID 14667819.
• Lehner B, Sanderson CM (Jul 2004). "A protein interaction framework for human mRNA degradation". Genome Research. 14 (7): 1315–23. doi:10.1101/gr.2122004. PMC 442147. PMID 15231747.
• Stelzl U, Worm U, Lalowski M, Haenig C, Brembeck FH, Goehler H, Stroedicke M, Zenkner M, Schoenherr A, Koeppen S, Timm J, Mintzlaff S, Abraham C, Bock N, Kietzmann S, Goedde A, Toksöz E, Droege A, Krobitsch S, Korn B, Birchmeier W, Lehrach H, Wanker EE (Sep 2005). "A human protein-protein interaction network: a resource for annotating the proteome". Cell. 122 (6): 957–68. doi:10.1016/j.cell.2005.08.029. hdl:11858/00-001M-0000-0010-8592-0. PMID 16169070.