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SMD2_BOVIN
ID   SMD2_BOVIN              Reviewed;         118 AA.
AC   Q3SZF8;
DT   27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   11-OCT-2005, sequence version 1.
DT   03-AUG-2022, entry version 101.
DE   RecName: Full=Small nuclear ribonucleoprotein Sm D2;
DE            Short=Sm-D2;
DE   AltName: Full=snRNP core protein D2;
GN   Name=SNRPD2;
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=Crossbred X Angus; TISSUE=Ileum;
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.
CC       {ECO:0000250|UniProtKB:P62316}.
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 with SMN1; the interaction is direct. Interacts with
CC       GEMIN2; the interaction is direct. Interacts with SNRPD1; the
CC       interaction is direct. Interacts with SNRPF; the interaction is direct.
CC       {ECO:0000250|UniProtKB:P62316}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm, cytosol
CC       {ECO:0000250|UniProtKB:P62316}. Nucleus {ECO:0000250|UniProtKB:P62316}.
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:P62316}.
CC   -!- SIMILARITY: Belongs to the snRNP core protein family. {ECO:0000305}.
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DR   EMBL; BC102877; AAI02878.1; -; mRNA.
DR   RefSeq; NP_001029648.1; NM_001034476.2.
DR   AlphaFoldDB; Q3SZF8; -.
DR   SMR; Q3SZF8; -.
DR   STRING; 9913.ENSBTAP00000016153; -.
DR   PaxDb; Q3SZF8; -.
DR   PRIDE; Q3SZF8; -.
DR   Ensembl; ENSBTAT00000016153; ENSBTAP00000016153; ENSBTAG00000012177.
DR   GeneID; 514932; -.
DR   KEGG; bta:514932; -.
DR   CTD; 6633; -.
DR   VEuPathDB; HostDB:ENSBTAG00000012177; -.
DR   VGNC; VGNC:35079; SNRPD2.
DR   eggNOG; KOG3459; Eukaryota.
DR   GeneTree; ENSGT00390000017608; -.
DR   HOGENOM; CLU_076902_2_1_1; -.
DR   InParanoid; Q3SZF8; -.
DR   OMA; PKTEMSQ; -.
DR   OrthoDB; 1581611at2759; -.
DR   Proteomes; UP000009136; Chromosome 18.
DR   Bgee; ENSBTAG00000012177; Expressed in semen and 108 other tissues.
DR   GO; GO:0071013; C:catalytic step 2 spliceosome; 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:0005685; C:U1 snRNP; ISS:UniProtKB.
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:0000398; P:mRNA splicing, via spliceosome; ISS:UniProtKB.
DR   GO; GO:0000387; P:spliceosomal snRNP assembly; ISS:UniProtKB.
DR   CDD; cd01720; Sm_D2; 1.
DR   InterPro; IPR001163; LSM_dom_euk/arc.
DR   InterPro; IPR010920; LSM_dom_sf.
DR   InterPro; IPR027248; Sm_D2.
DR   PANTHER; PTHR12777; PTHR12777; 1.
DR   Pfam; PF01423; LSM; 1.
DR   SMART; SM00651; Sm; 1.
DR   SUPFAM; SSF50182; SSF50182; 1.
PE   3: Inferred from homology;
KW   Acetylation; Cytoplasm; Isopeptide bond; mRNA processing; mRNA splicing;
KW   Nucleus; Phosphoprotein; Reference proteome; Ribonucleoprotein;
KW   Spliceosome; Ubl conjugation.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250|UniProtKB:P62316"
FT   CHAIN           2..118
FT                   /note="Small nuclear ribonucleoprotein Sm D2"
FT                   /id="PRO_0000244611"
FT   REGION          1..31
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        11..25
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOD_RES         2
FT                   /note="N-acetylserine"
FT                   /evidence="ECO:0000250|UniProtKB:P62316"
FT   MOD_RES         9
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:P62316"
FT   MOD_RES         12
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0000250|UniProtKB:P62316"
FT   CROSSLNK        6
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO2)"
FT                   /evidence="ECO:0000250|UniProtKB:P62316"
FT   CROSSLNK        8
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO2)"
FT                   /evidence="ECO:0000250|UniProtKB:P62316"
SQ   SEQUENCE   118 AA;  13527 MW;  D986059D82B7E045 CRC64;
     MSLLNKPKSE MTPEELQKRE EEEFNTGPLS VLTQSVKNNT QVLINCRNNK KLLGRVKAFD
     RHCNMVLENV KEMWTEVPKS GKGKKKSKPV NKDRYISKMF LRGDSVIVVL RNPLIAGK
 
 
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