1MZW

Crystal structure of a U4/U6 snRNP complex between human spliceosomal cyclophilin H and a U4/U6-60K peptide

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1mzwa_	All beta proteins	Cyclophilin-like	Cyclophilin-like	Cyclophilin (peptidylprolyl isomerase)	Cyclophilin (eukaryotic)	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	SCOP2B Superfamily	Cyclophilin-like	8042789	3000168	SCOP2B (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	Pro_isomerase	e1mzwA1	A: beta barrels	X: Cyclophilin-like (From Topology)	H: Cyclophilin-like (From Topology)	T: Cyclophilin-like	F: Pro_isomerase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.100.10	Mainly Beta	Beta Barrel	Cyclophilin	Cyclophilin-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF08799	pre-mRNA processing factor 4 (PRP4) like (PRP4)	pre-mRNA processing factor 4 (PRP4) like	This small domain is found on PRP4 ribonuleoproteins. PRP4 is a U4/U6 small nuclear ribonucleoprotein that is involved in pre-mRNA processing.	Domain
A	PF00160	Cyclophilin type peptidyl-prolyl cis-trans isomerase/CLD (Pro_isomerase)	Cyclophilin type peptidyl-prolyl cis-trans isomerase/CLD	The peptidyl-prolyl cis-trans isomerases, also known as cyclophilins, share this domain of about 109 amino acids. Cyclophilins have been found in all organisms studied so far and catalyse peptidyl-prolyl isomerisation during which the peptide bond pr ...	The peptidyl-prolyl cis-trans isomerases, also known as cyclophilins, share this domain of about 109 amino acids. Cyclophilins have been found in all organisms studied so far and catalyse peptidyl-prolyl isomerisation during which the peptide bond preceding proline (the peptidyl-prolyl bond) is stabilised in the cis conformation. Mammalian cyclophilin A (CypA) is a major cellular target for the immunosuppressive drug cyclosporin A (CsA). Other roles for cyclophilins may include chaperone and cell signalling function [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	U4/U6 snrnp 60kDa protein	RNA binding U6 snRNA binding snRNA binding binding organic cyclic compound binding nucleic acid binding U4 snRNA binding	RNA splicing RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process metabolic process cellular process RNA processing RNA splicing RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process metabolic process cellular process RNA processing macromolecule metabolic process mRNA processing mRNA metabolic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle cellular anatomical structure nucleoplasm organelle lumen organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle cellular anatomical structure nucleoplasm organelle lumen organelle nuclear lumen Cajal body U2-type spliceosomal complex protein-containing complex nuclear protein-containing complex U2-type precatalytic spliceosome spliceosomal complex ribonucleoprotein complex precatalytic spliceosome spliceosomal snRNP complex Sm-like protein family complex small nuclear ribonucleoprotein complex U4/U6 snRNP U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex
A	U-snRNP-associated cyclophilin	isomerase activity catalytic activity, acting on a protein peptidyl-prolyl cis-trans isomerase activity catalytic activity cis-trans isomerase activity amide binding binding cyclosporin A binding ribonucleoprotein complex binding protein-containing complex binding	cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis regulation of biological process positive regulation of viral genome replication positive regulation of viral process biological regulation positive regulation of biological process viral life cycle regulation of viral process cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis regulation of biological process positive regulation of viral genome replication positive regulation of viral process biological regulation positive regulation of biological process viral life cycle regulation of viral process regulation of viral life cycle viral genome replication viral process regulation of viral genome replication protein folding biosynthetic process metabolic process primary metabolic process protein metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process protein maturation RNA splicing RNA metabolic process nucleobase-containing compound biosynthetic process mRNA processing mRNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile RNA processing macromolecule modification peptidyl-amino acid modification peptidyl-proline modification protein modification process protein peptidyl-prolyl isomerization	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle cellular anatomical structure nucleoplasm organelle lumen organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle cellular anatomical structure nucleoplasm organelle lumen organelle nuclear lumen protein-containing complex nuclear protein-containing complex spliceosomal complex ribonucleoprotein complex cytoplasm cytosol spliceosomal snRNP complex Sm-like protein family complex small nuclear ribonucleoprotein complex U4/U6 snRNP U4/U6 x U5 tri-snRNP complex spliceosomal tri-snRNP complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR019775	WD40 repeat, conserved site	Conserved Site
B	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
B	IPR036285	PRP4-like superfamily	Homologous Superfamily
B	IPR014906	Pre-mRNA processing factor 4 (PRP4)-like	Domain
B	IPR001680	WD40 repeat	Repeat
B	IPR020472	G-protein beta WD-40 repeat	Repeat
B	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
A	IPR029000	Cyclophilin-like domain superfamily	Homologous Superfamily
A	IPR024936	Cyclophilin-type peptidyl-prolyl cis-trans isomerase	Family
A	IPR002130	Cyclophilin-type peptidyl-prolyl cis-trans isomerase domain	Domain
A	IPR020892	Cyclophilin-type peptidyl-prolyl cis-trans isomerase, conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B	Pharos: O43172	retinitis pigmentosa 70 retinitis pigmentosa substance-related disorder acute myeloid leukemia Drug abuse substance dependence aggressive systemic mastocytosis drug dependence malignant mesothelioma osteosarcoma retinal degeneration substance abuse cone-rod dystrophy mast cell leukemia ovarian cancer
A	Pharos: O43447	lung cancer medulloblastoma malignant ependymoma oligodendroglioma malignant mesothelioma ovarian cancer

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.