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small nuclear ribonucleoprotein Sm D1; Sm-D1; Sm-D autoantigen; snRNP core protein D1 (SNRPD1)
Function:
- may act as a charged protein scaffold to promote snRNP assembly or strengthen snRNP-snRNP interactions through nonspecific electrostatic contacts with RNA
- methylated on Arg by PRMT5 & PRMT7
- methylation is required for assembly & biogenesis of snRNPs
- identified in the spliceosome C complex
- component of the U11/U12 snRNPs that are part of the U12-type spliceosome
Structure: belongs to the snRNP core protein family
Compartment: nucleus
Pathology:
- anti Sm antibodies are found in patients with systemic lupus erythematosus
General
Sm (Smith) protein/antigen
Properties
SIZE: entity length = 119 aa
MW = 13 kD
COMPARTMENT: cell nucleus
MOTIF: lysine-rich region {86-119}
MOTIF: lysine residue (SEVERAL)
Database Correlations
OMIM 601063
UniProt P62314
Pfam PF01423
Entrez Gene 6632
Kegg hsa:6632
ENZYME
References
UniProt :accession P13641
Component-of
spliceosome C complex