RU1C_NEMVE
ID RU1C_NEMVE Reviewed; 138 AA.
AC A7SEP9;
DT 14-DEC-2011, integrated into UniProtKB/Swiss-Prot.
DT 02-OCT-2007, sequence version 1.
DT 25-MAY-2022, entry version 68.
DE RecName: Full=U1 small nuclear ribonucleoprotein C {ECO:0000255|HAMAP-Rule:MF_03153};
DE Short=U1 snRNP C {ECO:0000255|HAMAP-Rule:MF_03153};
DE Short=U1-C {ECO:0000255|HAMAP-Rule:MF_03153};
DE Short=U1C {ECO:0000255|HAMAP-Rule:MF_03153};
GN ORFNames=v1g244745;
OS Nematostella vectensis (Starlet sea anemone).
OC Eukaryota; Metazoa; Cnidaria; Anthozoa; Hexacorallia; Actiniaria;
OC Edwardsiidae; Nematostella.
OX NCBI_TaxID=45351;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CH2 X CH6;
RX PubMed=17615350; DOI=10.1126/science.1139158;
RA Putnam N.H., Srivastava M., Hellsten U., Dirks B., Chapman J., Salamov A.,
RA Terry A., Shapiro H., Lindquist E., Kapitonov V.V., Jurka J.,
RA Genikhovich G., Grigoriev I.V., Lucas S.M., Steele R.E., Finnerty J.R.,
RA Technau U., Martindale M.Q., Rokhsar D.S.;
RT "Sea anemone genome reveals ancestral eumetazoan gene repertoire and
RT genomic organization.";
RL Science 317:86-94(2007).
CC -!- FUNCTION: Component of the spliceosomal U1 snRNP, which is essential
CC for recognition of the pre-mRNA 5' splice-site and the subsequent
CC assembly of the spliceosome. U1-C is directly involved in initial 5'
CC splice-site recognition for both constitutive and regulated alternative
CC splicing. The interaction with the 5' splice-site seems to precede
CC base-pairing between the pre-mRNA and the U1 snRNA. Stimulates
CC commitment or early (E) complex formation by stabilizing the base
CC pairing of the 5' end of the U1 snRNA and the 5' splice-site region.
CC {ECO:0000255|HAMAP-Rule:MF_03153}.
CC -!- SUBUNIT: U1 snRNP is composed of the 7 core Sm proteins B/B', D1, D2,
CC D3, E, F and G that assemble in a heptameric protein ring on the Sm
CC site of the small nuclear RNA to form the core snRNP, and at least 3 U1
CC snRNP-specific proteins U1-70K, U1-A and U1-C. U1-C interacts with U1
CC snRNA and the 5' splice-site region of the pre-mRNA.
CC {ECO:0000255|HAMAP-Rule:MF_03153}.
CC -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000255|HAMAP-Rule:MF_03153}.
CC -!- SIMILARITY: Belongs to the U1 small nuclear ribonucleoprotein C family.
CC {ECO:0000255|HAMAP-Rule:MF_03153}.
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DR EMBL; DS469638; EDO37851.1; -; Genomic_DNA.
DR RefSeq; XP_001629914.1; XM_001629864.1.
DR AlphaFoldDB; A7SEP9; -.
DR SMR; A7SEP9; -.
DR STRING; 45351.EDO37851; -.
DR EnsemblMetazoa; EDO37851; EDO37851; NEMVEDRAFT_v1g244745.
DR GeneID; 5509391; -.
DR KEGG; nve:5509391; -.
DR eggNOG; KOG3454; Eukaryota.
DR HOGENOM; CLU_079697_3_1_1; -.
DR InParanoid; A7SEP9; -.
DR OMA; HRPMMPG; -.
DR OrthoDB; 1594407at2759; -.
DR Proteomes; UP000001593; Unassembled WGS sequence.
DR GO; GO:0000243; C:commitment complex; IEA:UniProtKB-UniRule.
DR GO; GO:0005685; C:U1 snRNP; IBA:GO_Central.
DR GO; GO:0071004; C:U2-type prespliceosome; IEA:UniProtKB-UniRule.
DR GO; GO:0003729; F:mRNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0030627; F:pre-mRNA 5'-splice site binding; IBA:GO_Central.
DR GO; GO:0030619; F:U1 snRNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000395; P:mRNA 5'-splice site recognition; IBA:GO_Central.
DR GO; GO:0000387; P:spliceosomal snRNP assembly; IEA:UniProtKB-UniRule.
DR HAMAP; MF_03153; U1_C; 1.
DR InterPro; IPR000690; Matrin/U1-C_Znf_C2H2.
DR InterPro; IPR003604; Matrin/U1-like-C_Znf_C2H2.
DR InterPro; IPR013085; U1-CZ_Znf_C2H2.
DR InterPro; IPR017340; U1_snRNP-C.
DR InterPro; IPR036236; Znf_C2H2_sf.
DR PANTHER; PTHR31148; PTHR31148; 1.
DR Pfam; PF06220; zf-U1; 1.
DR PIRSF; PIRSF037969; U1_snRNP-C; 1.
DR SMART; SM00451; ZnF_U1; 1.
DR SUPFAM; SSF57667; SSF57667; 1.
DR PROSITE; PS50171; ZF_MATRIN; 1.
PE 3: Inferred from homology;
KW Metal-binding; Nucleus; Reference proteome; Ribonucleoprotein; RNA-binding;
KW Zinc; Zinc-finger.
FT CHAIN 1..138
FT /note="U1 small nuclear ribonucleoprotein C"
FT /id="PRO_0000414265"
FT ZN_FING 4..36
FT /note="Matrin-type"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03153"
FT REGION 58..138
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 64..113
FT /note="Pro residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 138 AA; 15217 MW; 6B20819EE42D0E83 CRC64;
MPKYYCDYCD TFLTHDSPSV RKTHNNGRKH KENVRFYYQK WMEEQAQTLI DQTTAAFQSK
PNSQMPPNAP PGLMPPPGML PPPGGMPPGR MPPQGLPFPP PGPIPPPPGA GGMRPPHGQM
HMGGPRPQMG RPPMSLRS
