6CQ7 | pdb_00006cq7

The SH3 domain of MLK3 in complex with poly-proline peptide derived from Htt

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
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	d6cq7a_	All beta proteins	SH3-like barrel	SH3-domain	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], 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	SH3-domain	8062095	3000153	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	Flu_PB2_1st	e6cq7A1	A: a/b three-layered sandwiches	X: PriB N-terminal domain-like	H: ADP-ribosylation	T: ADP-ribosylation	F: Flu_PB2_1st	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF14604	Variant SH3 domain (SH3_9)	Variant SH3 domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Mitogen-activated protein kinase kinase kinase 11, Huntingtin fusion protein	small GTPase binding protein binding binding enzyme binding GTPase binding kinase binding protein kinase binding mitogen-activated protein kinase kinase binding protein serine/threonine kinase activity MAP kinase kinase kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity small GTPase binding protein binding binding enzyme binding GTPase binding kinase binding protein kinase binding mitogen-activated protein kinase kinase binding protein serine/threonine kinase activity MAP kinase kinase kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein serine kinase activity 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 identical protein binding protein homodimerization activity protein dimerization activity JUN kinase kinase kinase activity mitogen-activated protein kinase kinase kinase binding	regulation of biological process neuron apoptotic process positive regulation of programmed cell death regulation of cellular process regulation of apoptotic process biological regulation positive regulation of biological process regulation of programmed cell death cell death positive regulation of apoptotic process cellular process apoptotic process positive regulation of neuron apoptotic process programmed cell death regulation of biological process neuron apoptotic process positive regulation of programmed cell death regulation of cellular process regulation of apoptotic process biological regulation positive regulation of biological process regulation of programmed cell death cell death positive regulation of apoptotic process cellular process apoptotic process positive regulation of neuron apoptotic process programmed cell death positive regulation of cellular process regulation of neuron apoptotic process protein phosphorylation protein autophosphorylation phosphorylation primary metabolic process macromolecule modification phosphate-containing compound metabolic process metabolic process protein metabolic process macromolecule metabolic process protein modification process phosphorus metabolic process cellular response to stimulus response to stimulus signaling intracellular signal transduction cell communication intracellular signaling cassette MAPK cascade signal transduction positive regulation of cell communication positive regulation of signal transduction regulation of signal transduction positive regulation of response to stimulus positive regulation of JNK cascade regulation of intracellular signal transduction JNK cascade regulation of signaling positive regulation of MAPK cascade regulation of JNK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade regulation of response to stimulus regulation of cell communication positive regulation of signaling positive regulation of phosphorylation regulation of catalytic activity regulation of transferase activity positive regulation of phosphate metabolic process regulation of MAP kinase activity regulation of primary metabolic process positive regulation of protein serine/threonine kinase activity positive regulation of metabolic process positive regulation of macromolecule metabolic process positive regulation of protein phosphorylation positive regulation of MAP kinase activity positive regulation of phosphorus metabolic process regulation of protein metabolic process positive regulation of JUN kinase activity regulation of molecular function positive regulation of kinase activity regulation of kinase activity regulation of protein serine/threonine kinase activity regulation of phosphorus metabolic process regulation of metabolic process regulation of protein modification process regulation of protein phosphorylation positive regulation of protein metabolic process positive regulation of molecular function positive regulation of protein modification process positive regulation of protein kinase activity positive regulation of catalytic activity regulation of protein kinase activity regulation of macromolecule metabolic process regulation of JUN kinase activity regulation of phosphorylation cell cycle phase transition cell cycle cell cycle G1/S phase transition cell cycle process microtubule-based process	cellular anatomical structure membrane intracellular organelle centrosome microtubule organizing center intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle microtubule cytoskeleton cytoplasm cytosol polymeric cytoskeletal fiber cellular anatomical structure membrane intracellular organelle centrosome microtubule organizing center intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle microtubule cytoskeleton cytoplasm cytosol polymeric cytoskeletal fiber supramolecular fiber microtubule supramolecular polymer supramolecular complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR017441	Protein kinase, ATP binding site	Binding Site
A	IPR051681	Serine/Threonine Kinases and Pseudokinases	Family
A	IPR036028	SH3-like domain superfamily	Homologous Superfamily
A	IPR000719	Protein kinase domain	Domain
A	IPR035779	MLK1-3, SH3 domain	Domain
A	IPR016231	Mitogen-activated protein (MAP) kinase kinase kinase, MLK1-4	Family
A	IPR001245	Serine-threonine/tyrosine-protein kinase, catalytic domain	Domain
A	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A	IPR001452	SH3 domain	Domain
A	IPR008271	Serine/threonine-protein kinase, active site	Active Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q16584	acne endogenous depression metabolic syndrome X thrombocytopenia due to immune destruction acute myeloid leukemia heart disease osteoarthritis aggressive systemic mastocytosis mast cell leukemia 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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.