Annotations: 3HKL

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	HTH_3	e3hklB1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3	ECOD (v294.1)
A	Fz	e3hklA1	A: a/b three-layered sandwiches	X: Spectrin repeat-like	H: SH3	T: SH3	F: Fz	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.2000.10	Mainly Alpha	Orthogonal Bundle	Frizzled cysteine-rich domain	Frizzled cysteine-rich domain	CATH (4.3.0)
A	1.10.2000.10	Mainly Alpha	Orthogonal Bundle	Frizzled cysteine-rich domain	Frizzled cysteine-rich domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01392	Fz domain (Fz)	Fz domain	Also known as the CRD (cysteine rich domain), the C6 box in MuSK receptor. This domain of unknown function has been independently identified by several groups [1,2,3,4]. The domain contains 10 conserved cysteines.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Muscle, skeletal receptor tyrosine protein kinase	molecular transducer activity catalytic activity, acting on a protein kinase activity protein kinase activity signaling receptor activity transferase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein tyrosine kinase activity transmembrane receptor protein tyrosine kinase activity transmembrane receptor protein kinase activity transmembrane signaling receptor activity catalytic activity binding molecular transducer activity catalytic activity, acting on a protein kinase activity protein kinase activity signaling receptor activity transferase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein tyrosine kinase activity transmembrane receptor protein tyrosine kinase activity transmembrane receptor protein kinase activity transmembrane signaling receptor activity catalytic 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 cation binding metal ion binding protein binding Wnt-protein binding PDZ domain binding protein domain specific binding kinase binding enzyme binding protein kinase binding	developmental process ear development sensory organ development inner ear development cochlea development animal organ development anatomical structure development response to stimulus response to activity response to muscle activity protein localization to postsynaptic specialization membrane protein localization to postsynaptic membrane protein localization to cell periphery cellular localization developmental process ear development sensory organ development inner ear development cochlea development animal organ development anatomical structure development response to stimulus response to activity response to muscle activity protein localization to postsynaptic specialization membrane protein localization to postsynaptic membrane protein localization to cell periphery cellular localization protein localization to synapse biological regulation localization within membrane protein localization to membrane protein-containing complex localization neurotransmitter receptor localization to postsynaptic specialization membrane localization regulation of postsynaptic membrane neurotransmitter receptor levels macromolecule localization protein localization to organelle cellular process protein localization to postsynapse intracellular protein localization regulation of biological quality protein localization to cell junction receptor localization to synapse response to stress response to wounding response to axon injury regulation of localization regulation of cellular process regulation of protein localization positive regulation of biological process cellular component organization neuromuscular junction development receptor clustering synapse organization cellular component organization or biogenesis regulation of skeletal muscle acetylcholine-gated channel clustering regulation of receptor clustering postsynaptic membrane organization regulation of protein localization to membrane positive regulation of cellular process membrane organization regulation of biological process postsynapse organization positive regulation of receptor clustering skeletal muscle acetylcholine-gated channel clustering positive regulation of protein localization to membrane positive regulation of skeletal muscle acetylcholine-gated channel clustering cell junction organization regulation of cellular localization positive regulation of protein localization regulation of biosynthetic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression positive regulation of metabolic process biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process regulation of macromolecule biosynthetic process metabolic process positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process multicellular organismal process eye development retina development in camera-type eye visual system development multicellular organism development camera-type eye development sensory system development system development behavior system process learning or memory nervous system process cognition memory response to electrical stimulus response to abiotic stimulus RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process primary metabolic process nucleobase-containing compound biosynthetic process nucleic acid metabolic process regulation of DNA-templated transcription regulation of growth regulation of cellular component organization regulation of developmental process developmental growth cellular component biogenesis cellular component assembly cell junction assembly regulation of synaptic assembly at neuromuscular junction regulation of synapse structure or activity regulation of synapse assembly regulation of neuromuscular junction development regulation of developmental growth growth nervous system development regulation of cellular component biogenesis regulation of cell junction assembly regulation of synapse organization synaptic assembly at neuromuscular junction synapse assembly cellular response to stimulus positive regulation of cell communication small GTPase-mediated signal transduction positive regulation of signal transduction signaling regulation of small GTPase mediated signal transduction regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette signal transduction regulation of signaling Rac protein signal transduction positive regulation of intracellular signal transduction regulation of Rac protein signal transduction positive regulation of Rac protein signal transduction regulation of response to stimulus regulation of cell communication positive regulation of small GTPase mediated signal transduction positive regulation of signaling cellular developmental process cell differentiation neuron apoptotic process positive regulation of programmed cell death positive regulation of motor neuron apoptotic process regulation of apoptotic process regulation of programmed cell death motor neuron apoptotic process cell death regulation of motor neuron apoptotic process positive regulation of apoptotic process apoptotic process programmed cell death positive regulation of neuron apoptotic process regulation of neuron apoptotic process cell surface receptor signaling pathway cell surface receptor protein tyrosine kinase signaling pathway enzyme-linked receptor protein signaling pathway negative regulation of metabolic process negative regulation of biological process negative regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of cellular process negative regulation of macromolecule metabolic process positive regulation of neuromuscular junction development positive regulation of nervous system development positive regulation of developmental process positive regulation of developmental growth positive regulation of synaptic assembly at neuromuscular junction positive regulation of multicellular organismal process positive regulation of synapse assembly positive regulation of cellular component organization regulation of nervous system development regulation of multicellular organismal process regulation of multicellular organismal development positive regulation of cellular component biogenesis positive regulation of cell junction assembly positive regulation of growth modulation of chemical synaptic transmission synaptic signaling trans-synaptic signaling positive regulation of synaptic transmission, cholinergic cell-cell signaling positive regulation of synaptic transmission chemical synaptic transmission regulation of trans-synaptic signaling anterograde trans-synaptic signaling synaptic transmission, cholinergic regulation of synaptic transmission, cholinergic long-term synaptic potentiation regulation of synaptic plasticity	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane cell surface external side of plasma membrane side of membrane protein-containing complex cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane cell surface external side of plasma membrane side of membrane protein-containing complex signaling receptor complex neuromuscular junction cell projection

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036790	Frizzled cysteine-rich domain superfamily	Homologous Superfamily
A, B	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A, B	IPR008266	Tyrosine-protein kinase, active site	Active Site
A, B	IPR020635	Tyrosine-protein kinase, catalytic domain	Domain
A, B	IPR000719	Protein kinase domain	Domain
A, B	IPR003599	Immunoglobulin domain subtype	Domain
A, B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, B	IPR007110	Immunoglobulin-like domain	Domain
A, B	IPR020067	Frizzled domain	Domain
A, B	IPR017441	Protein kinase, ATP binding site	Binding Site
A, B	IPR003598	Immunoglobulin subtype 2	Domain
A, B	IPR001245	Serine-threonine/tyrosine-protein kinase, catalytic domain	Domain
A, B	IPR013098	Immunoglobulin I-set	Domain
A, B	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A, B	IPR050122	Receptor Tyrosine Kinase	Family

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.