1OPI

SOLUTION STRUCTURE OF THE THIRD RNA RECOGNITION MOTIF (RRM) OF U2AF65 IN COMPLEX WITH AN N-TERMINAL SF1 PEPTIDE

External Resource: Annotation

Domain Annotation: SCOP/SCOPe 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	d1opia_	Alpha and beta proteins (a+b)	Ferredoxin-like	RNA-binding domain, RBD, aka RNA recognition motif (RRM)	Canonical RBD	Splicing factor U2AF 65 KDa subunit	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	RRM_1_9	e1opiA1	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: RRM_1_9	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.70.330	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	RRM (RNA recognition motif) domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00076	RNA recognition motif (RRM_1)	RNA recognition motif	The RRM motif (a.k.a. RRM, RBD, or RNP domain) is probably diagnostic of an RNA binding protein. RRMs are found in a variety of RNA binding proteins, including various hnRNP proteins, proteins implicated in regulation of alternative splicing, and pro ...	The RRM motif (a.k.a. RRM, RBD, or RNP domain) is probably diagnostic of an RNA binding protein. RRMs are found in a variety of RNA binding proteins, including various hnRNP proteins, proteins implicated in regulation of alternative splicing, and protein components of snRNPs. The motif also appears in a few single stranded DNA binding proteins. The RRM structure consists of four strands and two helices arranged in an alpha/beta sandwich, with a third helix present during RNA binding in some cases The C-terminal beta strand (4th strand) and final helix are hard to align and have been omitted in the SEED alignment The LA proteins (Swiss:P05455) have an N terminal rrm which is included in the seed. There is a second region towards the C terminus that has some features characteristic of a rrm but does not appear to have the important structural core of a rrm. The LA proteins (Swiss:P05455) are one of the main autoantigens in Systemic lupus erythematosus (SLE), an autoimmune disease.	Domain
B	PF16275	Splicing factor 1 helix-hairpin domain (SF1-HH)	Splicing factor 1 helix-hairpin domain	This domain, approximately 100 residues in length, is mainly found in splicing factor 1 from yeast to human [1]. It is a helix-hairpin domain, which forms a secondary, hydrophobic interface with U2AF65(UHM) to lock the orientation of the two subunit ...	This domain, approximately 100 residues in length, is mainly found in splicing factor 1 from yeast to human [1]. It is a helix-hairpin domain, which forms a secondary, hydrophobic interface with U2AF65(UHM) to lock the orientation of the two subunits, which is essential for cooperative formation of the ternary SF1-U2AF65-RNA complex [2]. In this domain, it contains a highly conserved SPSP motif in its C terminal and phophorylation of SPSP motif induces a disorder-to-order transition within a novel SF1/U2AF65 interface, indicating a phosphorylation-dependent control of pre-mRNA splicing factors [3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	SPLICING FACTOR U2AF 65 KDA SUBUNIT	poly-pyrimidine tract binding RNA binding binding organic cyclic compound binding nucleic acid binding single-stranded RNA binding molecular function inhibitor activity molecular function regulator activity pre-mRNA binding pre-mRNA 3'-splice site binding protein binding enzyme binding C2H2 zinc finger domain binding protein domain specific binding	regulation of cellular process negative regulation of biological process regulation of mRNA splicing, via spliceosome mRNA processing negative regulation of cellular metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process regulation of RNA metabolic process negative regulation of mRNA splicing, via spliceosome organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process RNA processing negative regulation of mRNA processing regulation of cellular process negative regulation of biological process regulation of mRNA splicing, via spliceosome mRNA processing negative regulation of cellular metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process regulation of RNA metabolic process negative regulation of mRNA splicing, via spliceosome organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process RNA processing negative regulation of mRNA processing regulation of biological process cellular metabolic process negative regulation of metabolic process primary metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of metabolic process negative regulation of RNA metabolic process cellular biosynthetic process RNA metabolic process negative regulation of mRNA metabolic process organic substance metabolic process negative regulation of cellular process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of mRNA processing RNA splicing biological regulation regulation of macromolecule metabolic process gene expression regulation of RNA splicing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process negative regulation of RNA splicing RNA splicing, via transesterification reactions negative regulation of biosynthetic process mRNA splicing, via spliceosome cellular process RNA splicing, via transesterification reactions with bulged adenosine as nucleophile regulation of mRNA metabolic process positive regulation of biological process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process positive regulation of macromolecule metabolic process positive regulation of cellular process positive regulation of nucleobase-containing compound metabolic process positive regulation of RNA metabolic process positive regulation of gene expression positive regulation of RNA splicing positive regulation of cellular biosynthetic process negative regulation of post-translational protein modification regulation of protein modification process regulation of protein ubiquitination protein ubiquitination negative regulation of protein modification process protein metabolic process negative regulation of protein ubiquitination regulation of protein modification by small protein conjugation or removal protein modification process negative regulation of protein metabolic process organonitrogen compound metabolic process negative regulation of protein modification by small protein conjugation or removal regulation of post-translational protein modification regulation of protein metabolic process macromolecule modification post-translational protein modification protein modification by small protein conjugation protein modification by small protein conjugation or removal	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen protein-containing complex nuclear protein-containing complex spliceosomal complex ribonucleoprotein complex U2AF complex U2-type spliceosomal complex commitment complex prespliceosome U2-type prespliceosome
B	SPLICING FACTOR SF1	RNA binding binding organic cyclic compound binding nucleic acid binding transcription corepressor activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity molecular adaptor activity mRNA binding cation binding transition metal ion binding zinc ion binding ion binding RNA binding binding organic cyclic compound binding nucleic acid binding transcription corepressor activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity molecular adaptor activity mRNA binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding identical protein binding protein binding	regulation of biosynthetic process regulation of steroid biosynthetic process regulation of biological process regulation of lipid metabolic process steroid metabolic process regulation of steroid metabolic process biological regulation lipid biosynthetic process primary metabolic process regulation of primary metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic cyclic compound biosynthetic process organic substance biosynthetic process regulation of biosynthetic process regulation of steroid biosynthetic process regulation of biological process regulation of lipid metabolic process steroid metabolic process regulation of steroid metabolic process biological regulation lipid biosynthetic process primary metabolic process regulation of primary metabolic process organic cyclic compound metabolic process organic substance metabolic process biosynthetic process organic cyclic compound biosynthetic process organic substance biosynthetic process metabolic process regulation of lipid biosynthetic process steroid biosynthetic process regulation of metabolic process lipid metabolic process developmental process multicellular organismal process gonad development reproductive system development cellular developmental process reproductive process sex differentiation animal organ development developmental process involved in reproduction male gonad development male sex differentiation multicellular organism development development of primary male sexual characteristics development of primary sexual characteristics cell differentiation anatomical structure development reproductive structure development cellular process Leydig cell differentiation system development sex determination male sex determination negative regulation of cell population proliferation cell population proliferation regulation of cellular process regulation of smooth muscle cell proliferation negative regulation of biological process smooth muscle cell proliferation negative regulation of smooth muscle cell proliferation regulation of cell population proliferation negative regulation of cellular process muscle cell proliferation ribonucleoprotein complex biogenesis cellular biosynthetic process RNA metabolic process mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis nucleobase-containing compound metabolic process spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis RNA processing mRNA splice site recognition mRNA 3'-splice site recognition RNA splicing protein-containing complex organization cellular metabolic process gene expression mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile macromolecule metabolic process regulation of mRNA splicing, via spliceosome regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of mRNA processing regulation of cellular metabolic process regulation of macromolecule metabolic process regulation of RNA splicing regulation of cellular biosynthetic process regulation of gene expression regulation of macromolecule biosynthetic process regulation of mRNA metabolic process nuclear body organization nucleus organization organelle organization	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen intracellular non-membrane-bounded organelle ribosome membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen intracellular non-membrane-bounded organelle ribosome non-membrane-bounded organelle protein-containing complex nuclear protein-containing complex spliceosomal complex ribonucleoprotein complex U2AF complex nuclear body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR006529	U2 snRNP auxilliary factor, large subunit, splicing factor	Family
A	IPR000504	RNA recognition motif domain	Domain
A	IPR012677	Nucleotide-binding alpha-beta plait domain superfamily	Homologous Superfamily
A	IPR035979	RNA-binding domain superfamily	Homologous Superfamily
B	IPR032570	Splicing factor 1, helix-hairpin domain	Domain
B	IPR004087	K Homology domain	Domain
B	IPR001878	Zinc finger, CCHC-type	Domain
B	IPR036612	K Homology domain, type 1 superfamily	Homologous Superfamily
B	IPR045071	KH domain-containing BBP-like	Family
B	IPR047086	Splicing factor 1, helix-hairpin domain superfamily	Homologous Superfamily
B	IPR004088	K Homology domain, type 1	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P26368	astrocytic tumor malignant glioma psoriasis large cell medulloblastoma medulloblastoma lung cancer ovarian cancer
B	Pharos: Q15637	melanoma ovarian cancer Pick disease psoriasis astrocytic tumor breast cancer cutaneous melanoma head and neck cancer malignant ependymoma medulloblastoma oligodendroglioma pancreatic intraductal papillary-mucinous carcinoma plasma cell myeloma attention deficit hyperactivity disorder, inattentive type breast carcinoma melanoma ovarian cancer Pick disease psoriasis astrocytic tumor breast cancer cutaneous melanoma head and neck cancer malignant ependymoma medulloblastoma oligodendroglioma pancreatic intraductal papillary-mucinous carcinoma plasma cell myeloma attention deficit hyperactivity disorder, inattentive type breast carcinoma glioblastoma interstitial lung disease malignant glioma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia primitive neuroectodermal tumor atypical teratoid rhabdoid tumor chronic obstructive pulmonary disease gout large cell medulloblastoma malignant mesothelioma non-small cell lung carcinoma

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.