Annotations: 3IM2

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HTH_3	e3im2A1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.3380.10	Mainly Alpha	Orthogonal Bundle	Sec63 N-terminal domain-like fold	Sec63 N-terminal domain-like domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02889	Sec63 Brl domain (Sec63)	Sec63 Brl domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Pre-mRNA-splicing helicase BRR2	binding nucleic acid binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding nucleic acid binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity nucleic acid conformation isomerase activity isomerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid helicase activity RNA helicase activity ATP-dependent activity, acting on RNA macromolecular conformation isomerase activity identical protein binding protein binding	ribonucleoprotein complex biogenesis RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis RNA processing ribonucleoprotein complex biogenesis RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis RNA processing RNA splicing spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) protein-containing complex organization spliceosomal conformational changes to generate catalytic conformation primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome cellular process metabolic process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process	protein-containing complex Prp19 complex membrane-bounded organelle spliceosomal snRNP complex intracellular anatomical structure nucleus nuclear protein-containing complex Sm-like protein family complex intracellular membrane-bounded organelle intracellular organelle U4/U6 x U5 tri-snRNP complex cellular anatomical structure spliceosomal tri-snRNP complex small nuclear ribonucleoprotein complex protein-containing complex Prp19 complex membrane-bounded organelle spliceosomal snRNP complex intracellular anatomical structure nucleus nuclear protein-containing complex Sm-like protein family complex intracellular membrane-bounded organelle intracellular organelle U4/U6 x U5 tri-snRNP complex cellular anatomical structure spliceosomal tri-snRNP complex small nuclear ribonucleoprotein complex organelle ribonucleoprotein complex spliceosomal complex U5 snRNP

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR048863	Pre-mRNA-splicing helicase BRR2-like, plug domain	Domain
A	IPR041094	Brr2, N-terminal helicase PWI domain	Domain
A	IPR004179	Sec63 domain	Domain
A	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A	IPR011545	DEAD/DEAH-box helicase domain	Domain
A	IPR057842	MER3 helicase-like, winged helix domain	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A	IPR050474	Helicase Hel308/SKI2-like	Family
A	IPR001650	Helicase, C-terminal domain-like	Domain
A	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A	IPR014001	Helicase superfamily 1/2, ATP-binding domain	Domain
A	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
A	IPR035892	C2 domain superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.