Annotations: 3TKU

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Protein kinase-like (PK-like)	8101759	3000066	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Protein kinase-like (PK-like)	8101759	3000066	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	Pkinase_Tyr	e3tkuA1	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	Pkinase_Tyr	e3tkuB1	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)

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	3.30.200.20	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)
B	1.10.510.10	Mainly Alpha	Orthogonal Bundle	Transferase(Phosphotransferase)	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00069	Protein kinase domain (Pkinase)	Protein kinase domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Serine/threonine-protein kinase MRCK beta	small GTPase binding protein binding binding enzyme binding GTPase binding catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity protein serine kinase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups cation binding small GTPase binding protein binding binding enzyme binding GTPase binding catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity protein serine kinase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups cation binding magnesium ion binding ion binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding protein serine/threonine kinase activity protein-containing complex binding	cellular component organization organelle organization actomyosin structure organization actin cytoskeleton organization actin filament-based process cellular process cellular component organization or biogenesis cytoskeleton organization cell migration cell motility cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus cellular component organization organelle organization actomyosin structure organization actin cytoskeleton organization actin filament-based process cellular process cellular component organization or biogenesis cytoskeleton organization cell migration cell motility cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation signal transduction cell communication protein phosphorylation phosphorylation cellular metabolic process primary metabolic process macromolecule modification phosphate-containing compound metabolic process metabolic process protein metabolic process macromolecule metabolic process protein modification process phosphorus metabolic process establishment or maintenance of cell polarity	cell projection cell leading edge cellular anatomical entity plasma membrane bounded cell projection lamellipodium cell-cell junction anchoring junction cell junction intracellular organelle intracellular anatomical structure cytoskeleton organelle intracellular non-membrane-bounded organelle actin cytoskeleton cell projection cell leading edge cellular anatomical entity plasma membrane bounded cell projection lamellipodium cell-cell junction anchoring junction cell junction intracellular organelle intracellular anatomical structure cytoskeleton organelle intracellular non-membrane-bounded organelle actin cytoskeleton actomyosin non-membrane-bounded organelle extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle cytoplasm cytosol cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR000095	CRIB domain	Domain
A, B	IPR017441	Protein kinase, ATP binding site	Binding Site
A, B	IPR001849	Pleckstrin homology domain	Domain
A, B	IPR031597	KELK-motif containing domain	Domain
A, B	IPR020454	Diacylglycerol/phorbol-ester binding	Domain
A, B	IPR042718	Serine/threonine-protein kinase MRCK beta, catalytic domain	Domain
A, B	IPR001180	Citron homology (CNH) domain	Domain
A, B	IPR000719	Protein kinase domain	Domain
A, B	IPR050839	Rho-associated Serine/Threonine Kinase	Family
A, B	IPR011993	PH-like domain superfamily	Homologous Superfamily
A, B	IPR000961	AGC-kinase, C-terminal	Domain
A, B	IPR002219	Protein kinase C-like, phorbol ester/diacylglycerol-binding domain	Domain
A, B	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A, B	IPR014930	Myotonic dystrophy protein kinase, coiled coil	Domain
A, B	IPR046349	C1-like domain superfamily	Homologous Superfamily
A, B	IPR008271	Serine/threonine-protein kinase, active site	Active Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q9Y5S2	Neurodevelopmental Disorders astrocytic tumor colorectal adenocarcinoma primary biliary cholangitis attention deficit hyperactivity disorder, inattentive type Emery-Dreifuss muscular dystrophy lung large cell carcinoma non-alcoholic fatty liver disease psoriasis breast cancer Gaucher disease MALT lymphoma osteosarcoma

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.