Protein: Small nuclear ribonucleoprotein Sm D1 (F7F176)
Organism: Rattus norvegicus (Rat)
Function: Plays a role in pre-mRNA splicing as a core component of the spliceosomal U1, U2, U4 and U5 small nuclear ribonucleoproteins (snRNPs), the building blocks of the spliceosome. Component of both the pre-catalytic spliceosome B complex and activated spliceosome C complexes. As a component of the minor spliceosome, involved in the splicing of U12-type introns in pre-mRNAs. May act as a charged protein scaffold to promote snRNP assembly or strengthen snRNP-snRNP interactions through non-specific electrostatic contacts with RNA
Subcellular location: Cytoplasm, cytosol. Nucleus. Note=SMN-mediated assembly into core snRNPs occurs in the cytosol before SMN-mediated transport to the nucleus to be included in spliceosomes
InterPro domains:
- IPR010920: LSM domain superfamily (homologous_superfamily) [4-118]
- IPR027141: Like-Sm (LSM) domain containing protein, LSm4/SmD1/SmD3 (family) [4-114]
- IPR001163: Sm domain, eukaryotic/archaea-type (domain) [5-70]
- IPR034102: Small nuclear ribonucleoprotein D1 (domain) [2-93]
- IPR047575: Sm domain (domain) [2-74]
Sequence:
MKLVRFLMKLSHETVTIELKNGTQVHGTITGVDVSMNTHLKAVKMTLKNREPVQLETLSIRGNNIRYFILPDSLPLDTLLVDVEPKVKSKKREAVAGRGRGRGRGRGRGRGRGRGGPRR
Predicted GO terms:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0044877 (protein-containing complex binding), GO:0043021 (ribonucleoprotein complex binding), GO:0070990 (snRNP binding), GO:1990446 (U1 snRNP binding)
Biological Process (BP): GO:0008150 (biological process), GO:0065007 (biological regulation), GO:0050789 (regulation of biological process), GO:0048519 (negative regulation of biological process), GO:0019222 (regulation of metabolic process), GO:0050794 (regulation of cellular process), GO:0048523 (negative regulation of cellular process), GO:0009892 (negative regulation of metabolic process), GO:0051172 (negative regulation of nitrogen compound metabolic process), GO:0010605 (negative regulation of macromolecule metabolic process), GO:0009889 (regulation of biosynthetic process), GO:0051171 (regulation of nitrogen compound metabolic process), GO:0060255 (regulation of macromolecule metabolic process), GO:0031323 (regulation of cellular metabolic process), GO:0009890 (negative regulation of biosynthetic process), GO:0080090 (regulation of primary metabolic process), GO:0031324 (negative regulation of cellular metabolic process), GO:0010556 (regulation of macromolecule biosynthetic process), GO:0031326 (regulation of cellular biosynthetic process), GO:0019219 (regulation of nucleobase-containing compound metabolic process), GO:0010558 (negative regulation of macromolecule biosynthetic process), GO:0031327 (negative regulation of cellular biosynthetic process), GO:0051252 (regulation of RNA metabolic process), GO:0051253 (negative regulation of RNA metabolic process), GO:0045934 (negative regulation of nucleobase-containing compound metabolic process), GO:0010468 (regulation of gene expression), GO:2001141 (regulation of RNA biosynthetic process), GO:1902679 (negative regulation of RNA biosynthetic process), GO:0006355 (regulation of DNA-templated transcription), GO:0006357 (regulation of transcription by RNA polymerase II), GO:1903507 (negative regulation of nucleic acid-templated transcription), GO:1903506 (regulation of nucleic acid-templated transcription), GO:0045892 (negative regulation of DNA-templated transcription), GO:0000122 (negative regulation of transcription by RNA polymerase II)
Cellular Component (CC): GO:0005575 (cellular component), GO:0032991 (protein-containing complex), GO:0110165 (cellular anatomical entity), GO:1990904 (ribonucleoprotein complex), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0140513 (nuclear protein-containing complex), GO:0120114 (Sm-like protein family complex), GO:0030532 (small nuclear ribonucleoprotein complex), GO:0043229 (intracellular organelle), GO:0043227 (membrane-bounded organelle), GO:0097525 (spliceosomal snRNP complex), GO:0043231 (intracellular membrane-bounded organelle), GO:0005685 (U1 snRNP), GO:0005634 (nucleus)