Annotations: 2VRD

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2vrda1	Small proteins	beta-beta-alpha zinc fingers	beta-beta-alpha zinc fingers	HkH motif-containing C2H2 finger	Spliceosomal protein U1C	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	HkH motif-containing C2H2 finger	8025340	4003065	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	beta-beta-alpha zinc fingers	8037719	3001077	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	zf-U1	e2vrdA1	A: few secondary structure elements	X: beta-beta-alpha zinc fingers	H: beta-beta-alpha zinc fingers (From Topology)	T: beta-beta-alpha zinc fingers	F: zf-U1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.160.60	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain	Classic Zinc Finger	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF06220	U1 zinc finger (zf-U1)	U1 zinc finger	This family consists of several U1 small nuclear ribonucleoprotein C (U1-C) proteins. The U1 small nuclear ribonucleoprotein (U1 snRNP) binds to the pre-mRNA 5' splice site (ss) at early stages of spliceosome assembly. Recruitment of U1 to a class o ...	This family consists of several U1 small nuclear ribonucleoprotein C (U1-C) proteins. The U1 small nuclear ribonucleoprotein (U1 snRNP) binds to the pre-mRNA 5' splice site (ss) at early stages of spliceosome assembly. Recruitment of U1 to a class of weak 5' ss is promoted by binding of the protein TIA-1 to uridine-rich sequences immediately downstream from the 5' ss. Binding of TIA-1 in the vicinity of a 5' ss helps to stabilise U1 snRNP recruitment, at least in part, via a direct interaction with U1-C, thus providing one molecular mechanism for the function of this splicing regulator [1]. This domain is probably a zinc-binding. It is found in multiple copies in some members of the family.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	U1 SMALL NUCLEAR RIBONUCLEOPROTEIN C	RNA binding binding organic cyclic compound binding nucleic acid binding mRNA binding identical protein binding protein binding protein homodimerization activity protein dimerization activity pre-mRNA binding pre-mRNA 5'-splice site binding single-stranded RNA binding cation binding transition metal ion binding RNA binding binding organic cyclic compound binding nucleic acid binding mRNA binding identical protein binding protein binding protein homodimerization activity protein dimerization activity pre-mRNA binding pre-mRNA 5'-splice site binding single-stranded RNA binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing protein-RNA complex assembly nucleobase-containing compound metabolic process cellular component organization cellular component biogenesis spliceosomal complex assembly organic substance metabolic process protein-RNA complex organization cellular component assembly organic substance biosynthetic process protein-containing complex assembly ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing protein-RNA complex assembly nucleobase-containing compound metabolic process cellular component organization cellular component biogenesis spliceosomal complex assembly organic substance metabolic process protein-RNA complex organization cellular component assembly organic substance biosynthetic process protein-containing complex assembly RNA processing cellular component organization or biogenesis mRNA splice site recognition RNA splicing protein-containing complex organization cellular metabolic process primary metabolic process mRNA 5'-splice site recognition gene expression mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process organic cyclic compound metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA cis splicing, via spliceosome mRNA splicing, via spliceosome metabolic process cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process spliceosomal snRNP assembly	membrane-bounded organelle Cajal body intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen membrane-bounded organelle Cajal body intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen protein-containing complex nuclear protein-containing complex spliceosomal complex ribonucleoprotein complex U2-type spliceosomal complex commitment complex prespliceosome U2-type prespliceosome spliceosomal snRNP complex Sm-like protein family complex small nuclear ribonucleoprotein complex U1 snRNP

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR003604	Matrin/U1-C-like, C2H2-type zinc finger	Domain
A	IPR036236	Zinc finger C2H2 superfamily	Homologous Superfamily
A	IPR000690	Matrin/U1-C, C2H2-type zinc finger	Domain
A	IPR013085	U1-C, C2H2-type zinc finger	Domain
A	IPR017340	U1 small nuclear ribonucleoprotein C	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P09234	heart disease prostate carcinoma hypothyroidism systemic lupus erythematosus lung cancer

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.