3BEG

Crystal structure of SR protein kinase 1 complexed to its substrate ASF/SF2

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)
B	d3begb_	Alpha and beta proteins (a+b)	Ferredoxin-like	RNA-binding domain, RBD, aka RNA recognition motif (RRM)	Canonical RBD	Splicing factor, arginine/serine-rich 1, SFRS1	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	Pkinase_Tyr	e3begA1	A: a+b complex topology	X: Protein kinase/SAICAR synthase/ATP-grasp (From Homology)	H: Protein kinase/SAICAR synthase/ATP-grasp	T: Protein kinase	F: Pkinase_Tyr	ECOD (1.6)
B	RRM_1_1	e3begB1	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: RRM_1_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.200.20	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)
A	1.10.510.10	Mainly Alpha	Orthogonal Bundle	Transferase(Phosphotransferase)	domain 1	CATH (4.3.0)
B	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	PF00069	Protein kinase domain (Pkinase)	Protein kinase domain		Domain
B	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Serine/threonine-protein kinase SRPK1	protein serine/threonine kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups histone H2AS121 kinase activity histone modifying activity histone H2A kinase activity catalytic activity histone kinase activity AMP-activated protein kinase activity DNA-dependent protein kinase activity protein serine/threonine kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups histone H2AS121 kinase activity histone modifying activity histone H2A kinase activity catalytic activity histone kinase activity AMP-activated protein kinase activity DNA-dependent protein kinase activity histone H3T45 kinase activity histone H3 kinase activity eukaryotic translation initiation factor 2alpha kinase activity 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 histone H3T6 kinase activity histone H3T3 kinase activity histone H2BS14 kinase activity histone H2B kinase activity histone H3S57 kinase activity Rho-dependent protein serine/threonine kinase activity histone H2AT120 kinase activity histone H2AXS139 kinase activity histone H2AX kinase activity histone H4S1 kinase activity histone H4 kinase activity RNA binding nucleic acid binding protein serine kinase activity cation binding magnesium ion binding metal ion binding histone H3T11 kinase activity histone H3S28 kinase activity 3-phosphoinositide-dependent protein kinase activity histone H2BS36 kinase activity histone H2AS1 kinase activity ribosomal protein S6 kinase activity histone H3S10 kinase activity	cellular process cell cycle chromosome segregation cell cycle process biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism cellular process cell cycle chromosome segregation cell cycle process biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus 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 RNA processing macromolecule metabolic process ribonucleoprotein complex biogenesis mRNA processing protein-RNA complex assembly cellular component organization cellular component biogenesis spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization mRNA metabolic process RNA splicing, via transesterification reactions mRNA splicing, via spliceosome RNA splicing, via transesterification reactions with bulged adenosine as nucleophile regulation of cellular process regulation of mRNA splicing, via spliceosome regulation of primary metabolic process regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of biosynthetic process regulation of mRNA processing regulation of biological process biological regulation regulation of macromolecule metabolic process regulation of RNA splicing regulation of gene expression regulation of macromolecule biosynthetic process regulation of mRNA metabolic process regulation of metabolic process protein phosphorylation phosphorylation macromolecule modification phosphate-containing compound metabolic process protein metabolic process protein modification process phosphorus metabolic process positive regulation of viral genome replication positive regulation of viral process positive regulation of biological process viral life cycle regulation of viral life cycle regulation of viral process viral genome replication viral process regulation of viral genome replication spermatid development spermatid differentiation sexual reproduction cellular developmental process spermatogenesis reproductive process cell development cellular process involved in reproduction in multicellular organism developmental process involved in reproduction gamete generation cell differentiation chromatin organization anatomical structure development sperm DNA condensation developmental process multicellular organismal reproductive process male gamete generation nucleus organization organelle organization germ cell development spermatid nucleus differentiation negative regulation of viral genome replication negative regulation of biological process negative regulation of viral process cellular response to stimulus signaling signal transduction intracellular signal transduction cell communication	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 cytoplasm cytosol membraneless organelle intracellular membraneless organelle chromatin chromosome nuclear periphery nuclear matrix cell periphery plasma membrane membrane endoplasmic reticulum endomembrane system
B	Splicing factor, arginine/serine-rich 1	DNA topoisomerase binding protein binding binding enzyme binding protein kinase B binding kinase binding protein kinase binding RNA binding nucleic acid binding mRNA 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 spliceosomal complex assembly protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis 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 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 RNA splicing protein-containing complex organization 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 developmental process multicellular organismal process cellular developmental process nervous system development multicellular organism development neurogenesis central nervous system development gliogenesis oligodendrocyte differentiation glial cell differentiation cell differentiation anatomical structure development system development RNA transport nitrogen compound transport transport nucleic acid transport mRNA transport establishment of localization localization establishment of RNA localization macromolecule localization RNA localization nucleobase-containing compound transport gland development animal organ development animal organ regeneration liver development regeneration hepaticobiliary system development liver regeneration regulation of cellular process positive regulation of biological process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of biosynthetic process positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of biological process biological regulation regulation of macromolecule metabolic process regulation of RNA splicing regulation of gene expression positive regulation of gene expression regulation of macromolecule biosynthetic process positive regulation of RNA splicing regulation of metabolic process mRNA 5'-splice site recognition mRNA cis splicing, via spliceosome alternative mRNA splicing, via spliceosome	membrane-bounded organelle intracellular organelle organelle envelope cellular anatomical structure intracellular anatomical structure organelle nuclear envelope nucleus intracellular membrane-bounded organelle endomembrane system membrane-enclosed lumen intracellular organelle lumen nuclear speck nuclear body membrane-bounded organelle intracellular organelle organelle envelope cellular anatomical structure intracellular anatomical structure organelle nuclear envelope nucleus intracellular membrane-bounded organelle endomembrane system membrane-enclosed lumen intracellular organelle lumen nuclear speck nuclear body nucleoplasm organelle lumen nuclear lumen catalytic step 2 spliceosome protein-containing complex catalytic complex nuclear protein-containing complex spliceosomal complex ribonucleoprotein complex cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000719	Protein kinase domain	Domain
A	IPR051334	Serine/Arginine-Rich Protein Kinases	Family
A	IPR017441	Protein kinase, ATP binding site	Binding Site
A	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A	IPR008271	Serine/threonine-protein kinase, active site	Active Site
B	IPR050374	RRT5/SRSF/Splicing Factor SR	Family
B	IPR034520	SRSF1, RNA recognition motif 1	Domain
B	IPR029538	Serine/arginine-rich splicing factor 1, RNA recognition motif 2	Domain
B	IPR000504	RNA recognition motif domain	Domain
B	IPR012677	Nucleotide-binding alpha-beta plait domain superfamily	Homologous Superfamily
B	IPR035979	RNA-binding domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q96SB4	breast cancer invasive ductal breast carcinoma lung cancer pancreatic intraductal papillary-mucinous carcinoma cutaneous lupus erythematosus large cell medulloblastoma non-small cell lung carcinoma psoriasis ductal breast carcinoma in situ lung adenocarcinoma osteosarcoma subependymal giant cell astrocytoma
B	Pharos: Q07955	HIV infectious disease schizophrenia Neoplasm Metastasis psoriasis atypical teratoid rhabdoid tumor gastric carcinoma lung cancer medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm dermatomyositis hepatocellular carcinoma large cell medulloblastoma lymphoplasmacytic lymphoma myopathy HIV infectious disease schizophrenia Neoplasm Metastasis psoriasis atypical teratoid rhabdoid tumor gastric carcinoma lung cancer medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm dermatomyositis hepatocellular carcinoma large cell medulloblastoma lymphoplasmacytic lymphoma myopathy ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia tuberculosis gastric cancer lung adenocarcinoma pancreatic intraductal papillary-mucinous carcinoma

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.