SMD1_BOVIN
ID SMD1_BOVIN Reviewed; 119 AA.
AC Q3ZC10;
DT 27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT 27-SEP-2005, sequence version 1.
DT 03-AUG-2022, entry version 105.
DE RecName: Full=Small nuclear ribonucleoprotein Sm D1;
DE Short=Sm-D1;
DE AltName: Full=snRNP core protein D1;
GN Name=SNRPD1;
OS Bos taurus (Bovine).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Laurasiatheria; Artiodactyla; Ruminantia; Pecora; Bovidae;
OC Bovinae; Bos.
OX NCBI_TaxID=9913;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC STRAIN=Hereford; TISSUE=Heart ventricle;
RG NIH - Mammalian Gene Collection (MGC) project;
RL Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Plays a role in pre-mRNA splicing as a core component of the
CC spliceosomal U1, U2, U4 and U5 small nuclear ribonucleoproteins
CC (snRNPs), the building blocks of the spliceosome. Component of both the
CC pre-catalytic spliceosome B complex and activated spliceosome C
CC complexes. Is also a component of the minor U12 spliceosome. May act as
CC a charged protein scaffold to promote snRNP assembly or strengthen
CC snRNP-snRNP interactions through non-specific electrostatic contacts
CC with RNA. {ECO:0000250|UniProtKB:P62314}.
CC -!- SUBUNIT: Core component of the spliceosomal U1, U2, U4 and U5 small
CC nuclear ribonucleoproteins (snRNPs), the building blocks of the
CC spliceosome. Most spliceosomal snRNPs contain a common set of Sm
CC proteins, SNRPB, SNRPD1, SNRPD2, SNRPD3, SNRPE, SNRPF and SNRPG that
CC assemble in a heptameric protein ring on the Sm site of the small
CC nuclear RNA to form the core snRNP. Component of the U1 snRNP. The U1
CC snRNP is composed of the U1 snRNA and the 7 core Sm proteins SNRPB,
CC SNRPD1, SNRPD2, SNRPD3, SNRPE, SNRPF and SNRPG, and at least three U1
CC snRNP-specific proteins SNRNP70/U1-70K, SNRPA/U1-A and SNRPC/U1-C.
CC Component of the U4/U6-U5 tri-snRNP complex composed of the U4, U6 and
CC U5 snRNAs and at least PRPF3, PRPF4, PRPF6, PRPF8, PRPF31, SNRNP200,
CC TXNL4A, SNRNP40, SNRPB, SNRPD1, SNRPD2, SNRPD3, SNRPE, SNRPF, SNRPG,
CC DDX23, CD2BP2, PPIH, SNU13, EFTUD2, SART1 and USP39, plus LSM2, LSM3,
CC LSM4, LSM5, LSM6, LSM7 and LSM8. Component of the U11/U12 snRNPs that
CC are part of the U12-type spliceosome. Part of the SMN-Sm complex that
CC contains SMN1, GEMIN2/SIP1, DDX20/GEMIN3, GEMIN4, GEMIN5, GEMIN6,
CC GEMIN7, GEMIN8, STRAP/UNRIP and the Sm proteins SNRPB, SNRPD1, SNRPD2,
CC SNRPD3, SNRPE, SNRPF and SNRPG; catalyzes core snRNPs assembly. Forms a
CC 6S pICln-Sm complex composed of CLNS1A/pICln, SNRPD1, SNRPD2, SNRPE,
CC SNRPF and SNRPG; ring-like structure where CLNS1A/pICln mimics
CC additional Sm proteins and which is unable to assemble into the core
CC snRNP. Interacts (via C-terminus) with SMN1 (via Tudor domain); the
CC interaction is direct. Interacts with GEMIN2; the interaction is
CC direct. Interacts with SNRPD2; the interaction is direct.
CC {ECO:0000250|UniProtKB:P62314}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm, cytosol
CC {ECO:0000250|UniProtKB:P62314}. Nucleus {ECO:0000250|UniProtKB:P62314}.
CC Note=SMN-mediated assembly into core snRNPs occurs in the cytosol
CC before SMN-mediated transport to the nucleus to be included in
CC spliceosomes. {ECO:0000250|UniProtKB:P62314}.
CC -!- PTM: Methylated on arginine residues by PRMT5 and PRMT7; probable
CC asymmetric dimethylation which is required for assembly and biogenesis
CC of snRNPs. {ECO:0000250|UniProtKB:P62314}.
CC -!- SIMILARITY: Belongs to the snRNP core protein family. {ECO:0000305}.
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DR EMBL; BC102987; AAI02988.1; -; mRNA.
DR RefSeq; NP_001030237.1; NM_001035065.2.
DR AlphaFoldDB; Q3ZC10; -.
DR SMR; Q3ZC10; -.
DR STRING; 9913.ENSBTAP00000010912; -.
DR PaxDb; Q3ZC10; -.
DR PeptideAtlas; Q3ZC10; -.
DR PRIDE; Q3ZC10; -.
DR Ensembl; ENSBTAT00000010912; ENSBTAP00000010912; ENSBTAG00000008292.
DR GeneID; 508788; -.
DR KEGG; bta:508788; -.
DR CTD; 6632; -.
DR VEuPathDB; HostDB:ENSBTAG00000008292; -.
DR eggNOG; KOG3428; Eukaryota.
DR GeneTree; ENSGT00510000047245; -.
DR HOGENOM; CLU_123956_3_0_1; -.
DR InParanoid; Q3ZC10; -.
DR OMA; SVTPQMN; -.
DR OrthoDB; 1579192at2759; -.
DR TreeFam; TF314224; -.
DR Reactome; R-BTA-191859; snRNP Assembly.
DR Proteomes; UP000009136; Chromosome 24.
DR Bgee; ENSBTAG00000008292; Expressed in oocyte and 103 other tissues.
DR GO; GO:0071013; C:catalytic step 2 spliceosome; IBA:GO_Central.
DR GO; GO:0000243; C:commitment complex; IBA:GO_Central.
DR GO; GO:0005829; C:cytosol; ISS:UniProtKB.
DR GO; GO:0034709; C:methylosome; ISS:UniProtKB.
DR GO; GO:0005634; C:nucleus; ISS:UniProtKB.
DR GO; GO:0034715; C:pICln-Sm protein complex; ISS:UniProtKB.
DR GO; GO:0071011; C:precatalytic spliceosome; IBA:GO_Central.
DR GO; GO:0034719; C:SMN-Sm protein complex; ISS:UniProtKB.
DR GO; GO:0097526; C:spliceosomal tri-snRNP complex; IBA:GO_Central.
DR GO; GO:0005685; C:U1 snRNP; ISS:UniProtKB.
DR GO; GO:0005689; C:U12-type spliceosomal complex; IBA:GO_Central.
DR GO; GO:0005686; C:U2 snRNP; IBA:GO_Central.
DR GO; GO:0071007; C:U2-type catalytic step 2 spliceosome; ISS:UniProtKB.
DR GO; GO:0071005; C:U2-type precatalytic spliceosome; ISS:UniProtKB.
DR GO; GO:0005687; C:U4 snRNP; ISS:UniProtKB.
DR GO; GO:0046540; C:U4/U6 x U5 tri-snRNP complex; ISS:UniProtKB.
DR GO; GO:0005682; C:U5 snRNP; IBA:GO_Central.
DR GO; GO:0003723; F:RNA binding; IBA:GO_Central.
DR GO; GO:0000398; P:mRNA splicing, via spliceosome; ISS:UniProtKB.
DR GO; GO:0000387; P:spliceosomal snRNP assembly; ISS:UniProtKB.
DR CDD; cd01724; Sm_D1; 1.
DR InterPro; IPR027141; LSm4/Sm_D1/D3.
DR InterPro; IPR001163; LSM_dom_euk/arc.
DR InterPro; IPR010920; LSM_dom_sf.
DR InterPro; IPR034102; Sm_D1.
DR PANTHER; PTHR23338; PTHR23338; 1.
DR Pfam; PF01423; LSM; 1.
DR SMART; SM00651; Sm; 1.
DR SUPFAM; SSF50182; SSF50182; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Isopeptide bond; Methylation; mRNA processing; mRNA splicing;
KW Nucleus; Reference proteome; Repeat; Ribonucleoprotein; Spliceosome;
KW Ubl conjugation.
FT CHAIN 1..119
FT /note="Small nuclear ribonucleoprotein Sm D1"
FT /id="PRO_0000244610"
FT REGION 1..80
FT /note="Sufficient for interaction with CLNS1A"
FT /evidence="ECO:0000250"
FT REGION 69..119
FT /note="Required for interaction with SMN1"
FT /evidence="ECO:0000250|UniProtKB:P62314"
FT REGION 88..119
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 101..119
FT /note="Basic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT CROSSLNK 86
FT /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT G-Cter in SUMO2)"
FT /evidence="ECO:0000250|UniProtKB:P62314"
SQ SEQUENCE 119 AA; 13282 MW; 0C81C94BF98E0810 CRC64;
MKLVRFLMKL SHETVTIELK NGTQVHGTIT GVDVSMNTHL KAVKMTLKNR EPVQLETLSI
RGNNIRYFIL PDSLPLDTLL VDVEPKVKSK KREAVAGRGR GRGRGRGRGR GRGRGGPRR
