9AXH | pdb_00009axh

Crystal structure of KSR1/MEK1 complex heterotetramer with NST-628

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Protein kinase-like (PK-like)	8042320	3000066	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Protein kinase-like (PK-like)	8042320	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	GFO_IDH_MocA	e9axhA01	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: GFO_IDH_MocA	ECOD (v295.2)
B	Reovirus_L2_GTase	e9axhB1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Reovirus_L2_GTase	ECOD (v295.2)
C	GFO_IDH_MocA	e9axhC01	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: GFO_IDH_MocA	ECOD (v295.2)
D	Reovirus_L2_GTase	e9axhD1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Reovirus_L2_GTase	ECOD (v295.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00069	Protein kinase domain (Pkinase)	Protein kinase domain		Domain
C, D	PF07714	Protein tyrosine and serine/threonine kinase (PK_Tyr_Ser-Thr)	Protein tyrosine and serine/threonine kinase	Protein phosphorylation, which plays a key role in most cellular activities, is a reversible process mediated by protein kinases and phosphoprotein phosphatases. Protein kinases catalyse the transfer of the gamma phosphate from nucleotide triphospha ...	Protein phosphorylation, which plays a key role in most cellular activities, is a reversible process mediated by protein kinases and phosphoprotein phosphatases. Protein kinases catalyse the transfer of the gamma phosphate from nucleotide triphosphates (often ATP) to one or more amino acid residues in a protein substrate side chain, resulting in a conformational change affecting protein function. Phosphoprotein phosphatases catalyse the reverse process. Protein kinases fall into three broad classes, characterised with respect to substrate specificity [1]; Serine/threonine-protein kinases, tyrosine-protein kinases, and dual specificity protein kinases (e.g. MEK - phosphorylates both Thr and Tyr on target proteins). This entry represents the catalytic domain found in a number of serine/threonine- and tyrosine-protein kinases. It does not include the catalytic domain of dual specificity kinases.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Dual specificity mitogen-activated protein kinase kinase 1	small GTPase binding protein binding binding enzyme binding GTPase binding protein tyrosine 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 adenyl ribonucleotide binding small GTPase binding protein binding binding enzyme binding GTPase binding protein tyrosine 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 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 protein-containing complex binding MAP kinase kinase activity protein serine/threonine/tyrosine kinase activity kinase binding mitogen-activated protein kinase kinase kinase binding protein kinase binding enzyme regulator activity protein serine/threonine kinase activator activity kinase activator activity enzyme activator activity molecular function activator activity molecular function regulator activity protein kinase activator activity protein kinase regulator activity kinase regulator activity scaffold protein binding protein serine kinase activity protein complex scaffold activity structural molecule activity protein-macromolecule adaptor activity MAP kinase scaffold activity molecular adaptor activity signaling adaptor activity protein serine/threonine kinase activity	response to stimulus response to stress response to wounding response to axon injury regulation of biosynthetic process regulation of biological process regulation of cellular process biological regulation positive regulation of biological process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression response to stimulus response to stress response to wounding response to axon injury regulation of biosynthetic process regulation of biological process regulation of cellular process biological regulation positive regulation of biological 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 cellular process positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of cellular process chemical homeostasis homeostatic process triglyceride homeostasis acylglycerol homeostasis lipid homeostasis cellular response to stimulus cell surface receptor signaling pathway signaling insulin-like growth factor receptor signaling pathway cell surface receptor protein tyrosine kinase signaling pathway cell communication signal transduction enzyme-linked receptor protein signaling pathway regulation of cellular component organization Golgi inheritance organelle inheritance regulation of organelle organization cellular component organization regulation of Golgi organization organelle organization regulation of Golgi inheritance cellular component organization or biogenesis Golgi organization endomembrane system organization cellular response to stress cellular senescence intracellular signal transduction intracellular signaling cassette MAPK cascade chemotaxis taxis response to chemical response to external stimulus locomotion ERBB2 signaling pathway ERBB2-ERBB3 signaling pathway ERBB signaling pathway ERBB3 signaling pathway negative regulation of homotypic cell-cell adhesion regulation of homotypic cell-cell adhesion regulation of cell adhesion negative regulation of biological process homotypic cell-cell adhesion negative regulation of cell adhesion cell adhesion cell-cell adhesion negative regulation of cell-cell adhesion negative regulation of cellular process regulation of cell-cell adhesion vesicle localization establishment of organelle localization cellular localization transport establishment of melanosome localization establishment of vesicle localization cellular pigmentation pigment granule transport establishment of pigment granule localization establishment of localization localization pigmentation pigment granule localization organelle localization establishment of localization in cell melanosome transport melanosome localization regulation of protein modification process positive regulation of phosphorylation regulation of catalytic activity regulation of protein phosphorylation positive regulation of protein metabolic process regulation of transferase activity positive regulation of phosphate metabolic process regulation of primary metabolic process positive regulation of protein serine/threonine kinase activity positive regulation of molecular function positive regulation of protein modification process phosphate-containing compound metabolic process protein metabolic process positive regulation of protein kinase activity protein modification process positive regulation of protein phosphorylation protein phosphorylation phosphorylation regulation of protein metabolic process positive regulation of catalytic activity primary metabolic process regulation of protein kinase activity regulation of molecular function positive regulation of kinase activity regulation of kinase activity macromolecule modification regulation of protein serine/threonine kinase activity regulation of phosphorylation nucleotide biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process purine ribonucleoside triphosphate biosynthetic process positive regulation of nucleotide biosynthetic process regulation of nucleotide biosynthetic process regulation of ATP metabolic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process purine nucleoside triphosphate biosynthetic process regulation of small molecule metabolic process positive regulation of purine nucleotide biosynthetic process regulation of nucleotide metabolic process small molecule metabolic process regulation of nucleobase-containing compound metabolic process phosphorus metabolic process ribose phosphate biosynthetic process nucleoside phosphate metabolic process positive regulation of phosphorus metabolic process nucleotide metabolic process regulation of purine nucleotide metabolic process ribonucleoside triphosphate biosynthetic process positive regulation of ATP metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process regulation of phosphorus metabolic process nucleoside triphosphate metabolic process purine ribonucleotide metabolic process purine nucleotide biosynthetic process ribose phosphate metabolic process ATP metabolic process ATP biosynthetic process positive regulation of nucleotide metabolic process purine nucleotide metabolic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process purine ribonucleoside triphosphate metabolic process purine-containing compound biosynthetic process purine nucleoside triphosphate metabolic process carbohydrate derivative biosynthetic process regulation of purine nucleotide biosynthetic process nucleoside triphosphate biosynthetic process nucleobase-containing compound biosynthetic process purine-containing compound metabolic process positive regulation of purine nucleotide metabolic process positive regulation of ATP biosynthetic process regulation of ATP biosynthetic process organophosphate metabolic process positive regulation of small molecule metabolic process vascular associated smooth muscle contraction multicellular organismal process system process regulation of vascular associated smooth muscle contraction regulation of system process circulatory system process smooth muscle contraction regulation of smooth muscle contraction regulation of multicellular organismal process blood vessel diameter maintenance regulation of biological quality blood circulation regulation of tube diameter regulation of tube size muscle contraction muscle system process regulation of muscle system process regulation of blood circulation regulation of muscle contraction vascular process in circulatory system regulation of vasoconstriction vasoconstriction regulation of anatomical structure size positive regulation of autophagy catabolic process autophagy regulation of catabolic process regulation of autophagy positive regulation of catabolic process process utilizing autophagic mechanism cellular response to oxygen levels cellular response to hypoxia regulation of cellular response to stress regulation of signal transduction regulation of programmed cell death negative regulation of apoptotic signaling pathway intrinsic apoptotic signaling pathway response to decreased oxygen levels negative regulation of programmed cell death regulation of apoptotic process cell death negative regulation of apoptotic process intrinsic apoptotic signaling pathway in response to hypoxia response to hypoxia regulation of response to stimulus response to oxygen levels response to abiotic stimulus regulation of apoptotic signaling pathway regulation of cellular response to hypoxia negative regulation of signaling negative regulation of intracellular signal transduction cellular response to decreased oxygen levels regulation of intrinsic apoptotic signaling pathway negative regulation of cell communication regulation of intracellular signal transduction regulation of response to stress regulation of signaling negative regulation of response to stimulus regulation of hypoxia-induced intrinsic apoptotic signaling pathway negative regulation of signal transduction negative regulation of cellular response to hypoxia apoptotic signaling pathway negative regulation of intrinsic apoptotic signaling pathway cellular response to chemical stimulus negative regulation of hypoxia-induced intrinsic apoptotic signaling pathway regulation of cell communication apoptotic process programmed cell death positive regulation of cell communication positive regulation of signal transduction positive regulation of response to stimulus positive regulation of ERK1 and ERK2 cascade positive regulation of MAPK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade positive regulation of signaling vesicle cytoskeletal trafficking organelle transport along microtubule intracellular transport vesicle transport along microtubule microtubule-based transport transport along microtubule cytoskeleton-dependent intracellular transport microtubule-based movement microtubule-based process developmental process cellular developmental process peripheral nervous system development cell development nervous system development glial cell development multicellular organism development neurogenesis Schwann cell development gliogenesis glial cell differentiation cell differentiation anatomical structure development animal gross anatomical part developmental process Schwann cell differentiation system development cell junction organization neuromuscular junction development synapse organization generation of neurons neuron differentiation positive regulation of muscle contraction positive regulation of multicellular organismal process stress-activated MAPK cascade regulation of stress-activated protein kinase signaling cascade regulation of stress-activated MAPK cascade stress-activated protein kinase signaling cascade cell projection organization plasma membrane bounded cell projection morphogenesis neuron projection development cell morphogenesis cell projection morphogenesis neuron projection morphogenesis plasma membrane bounded cell projection organization anatomical structure morphogenesis neuron development response to corticosteroid response to lipid response to hormone response to steroid hormone response to endogenous stimulus response to glucocorticoid regulation of localization regulation of transport regulation of vesicle-mediated transport vesicle-mediated transport endosomal transport vesicle-mediated transport between endosomal compartments regulation of early endosome to late endosome transport early endosome to late endosome transport regulation of cellular localization regulation of intracellular transport protein localization to synapse regulation of protein localization regulation of neurotransmitter receptor localization to postsynaptic specialization membrane regulation of protein localization to synapse neurotransmitter receptor localization to postsynaptic specialization membrane intracellular protein localization regulation of protein localization to membrane regulation of receptor localization to synapse protein localization to postsynaptic specialization membrane protein localization to cell periphery protein localization to postsynaptic membrane regulation of protein localization to cell periphery localization within membrane protein localization to membrane protein-containing complex localization regulation of postsynaptic membrane neurotransmitter receptor levels macromolecule localization protein localization to organelle protein localization to postsynapse protein localization to cell junction receptor localization to synapse negative regulation of cell population proliferation cell population proliferation regulation of cell population proliferation positive regulation of locomotion regulation of cell motility positive regulation of cell migration regulation of locomotion positive regulation of cell motility regulation of cell migration cell migration cell motility positive regulation of DNA-templated transcription RNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of RNA biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process regulation of DNA-templated transcription myelination axon ensheathment ensheathment of neurons transcription elongation by RNA polymerase II positive regulation of transcription elongation by RNA polymerase II transcription by RNA polymerase II positive regulation of DNA-templated transcription, elongation regulation of transcription by RNA polymerase II regulation of DNA-templated transcription elongation regulation of transcription elongation by RNA polymerase II positive regulation of transcription by RNA polymerase II DNA-templated transcription elongation negative regulation of metabolic process negative regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of macromolecule metabolic process response to oxidative stress	somatodendritic compartment cell body cellular anatomical structure perikaryon neuronal cell body membrane intracellular anatomical structure cytoplasm cytosol synapse cell junction glutamatergic synapse membrane-bounded organelle intracellular organelle somatodendritic compartment cell body cellular anatomical structure perikaryon neuronal cell body membrane intracellular anatomical structure cytoplasm cytosol synapse cell junction glutamatergic synapse membrane-bounded organelle intracellular organelle Golgi apparatus organelle intracellular membrane-bounded organelle endomembrane system perinuclear region of cytoplasm axon cell projection neuron projection plasma membrane bounded cell projection intracellular membraneless organelle cilium ciliary basal body microtubule organizing center cytoskeleton membraneless organelle microtubule cytoskeleton polymeric cytoskeletal fiber supramolecular fiber microtubule supramolecular polymer supramolecular complex mitochondrion anchoring junction focal adhesion cell-substrate junction cell periphery cell cortex centrosome plasma membrane neuron projection cytoplasm dendrite cytoplasm dendrite dendritic tree early endosome endosome intracellular vesicle cytoplasmic vesicle vesicle postsynaptic density postsynapse neuron to neuron synapse postsynaptic specialization asymmetric synapse late endosome nucleus endoplasmic reticulum
C, D	Kinase suppressor of Ras 1	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 protein binding binding 14-3-3 protein binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide 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 protein binding binding 14-3-3 protein 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 protein complex scaffold activity structural molecule activity protein-macromolecule adaptor activity MAP kinase scaffold activity molecular adaptor activity signaling adaptor activity protein serine/threonine kinase activity	cellular response to stimulus regulation of biological process small GTPase-mediated signal transduction regulation of cellular process response to stimulus signaling Ras protein signal transduction biological regulation intracellular signal transduction cell communication intracellular signaling cassette cellular process signal transduction positive regulation of cell communication cellular response to stimulus regulation of biological process small GTPase-mediated signal transduction regulation of cellular process response to stimulus signaling Ras protein signal transduction biological regulation intracellular signal transduction cell communication intracellular signaling cassette cellular process signal transduction positive regulation of cell communication positive regulation of signal transduction positive regulation of biological process regulation of signal transduction positive regulation of response to stimulus regulation of intracellular signal transduction positive regulation of cellular process regulation of signaling positive regulation of MAPK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade regulation of response to stimulus MAPK cascade regulation of cell communication positive regulation of signaling regulation of protein modification process regulation of catalytic activity regulation of protein phosphorylation regulation of transferase activity regulation of MAP kinase activity regulation of primary metabolic process phosphate-containing compound metabolic process protein metabolic process protein modification process protein phosphorylation phosphorylation regulation of protein metabolic process primary metabolic process regulation of protein kinase activity regulation of macromolecule metabolic process regulation of molecular function regulation of kinase activity regulation of protein serine/threonine kinase activity macromolecule modification regulation of phosphorylation metabolic process macromolecule metabolic process regulation of metabolic process cell population proliferation regulation of cell population proliferation	cellular anatomical structure membrane ruffle cell leading edge plasma membrane leading edge membrane plasma membrane bounded cell projection cell periphery cell projection ruffle membrane plasma membrane region cell projection membrane intracellular anatomical structure cytoplasm cellular anatomical structure membrane ruffle cell leading edge plasma membrane leading edge membrane plasma membrane bounded cell projection cell periphery cell projection ruffle membrane plasma membrane region cell projection membrane intracellular anatomical structure cytoplasm cytosol protein-containing complex membrane-bounded organelle organelle subcompartment intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane endoplasmic reticulum membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR000719	Protein kinase domain	Domain
A, B	IPR050915	MAP_kinase_kinase	Unknown
A, B	IPR017441	Protein kinase, ATP binding site	Binding Site
A, B	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A, B	IPR008271	Serine/threonine-protein kinase, active site	Active Site
C, D	IPR000719	Protein kinase domain	Domain
C, D	IPR001245	Serine-threonine/tyrosine-protein kinase, catalytic domain	Domain
C, D	IPR002219	Protein kinase C-like, phorbol ester/diacylglycerol-binding domain	Domain
C, D	IPR013761	Sterile alpha motif/pointed domain superfamily	Homologous Superfamily
C, D	IPR046933	Kinase suppressor RAS 1, N-terminal helical hairpin superfamily	Homologous Superfamily
C, D	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
C, D	IPR050167	Serine/threonine-protein kinase	Family
C, D	IPR046861	Kinase suppressor RAS 1, N-terminal helical hairpin	Domain
C, D	IPR046349	C1-like domain superfamily	Homologous Superfamily
C, D	IPR008271	Serine/threonine-protein kinase, active site	Active Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	: Q02750	cardiofaciocutaneous syndrome Noonan syndrome Costello syndrome hairy cell leukemia melanoma cardiofaciocutaneous syndrome 3 intellectual disability cardiomyopathy brain ischemia neurofibromatosis type 1 cancer cutaneous melanoma prostate carcinoma testicular germ cell tumor lung adenocarcinoma cardiofaciocutaneous syndrome Noonan syndrome Costello syndrome hairy cell leukemia melanoma cardiofaciocutaneous syndrome 3 intellectual disability cardiomyopathy brain ischemia neurofibromatosis type 1 cancer cutaneous melanoma prostate carcinoma testicular germ cell tumor lung adenocarcinoma Unresectable malignant melanoma with BRAF gene mutation malignant ependymoma melorheostosis oligodendroglioma colorectal adenocarcinoma ovarian neoplasm primitive neuroectodermal tumor hydrops fetalis Langerhans cell histiocytosis lung cancer medulloblastoma astrocytic tumor cardiofaciocutaneous syndrome 1 Noonan syndrome 1 ovarian cancer dermatomyositis Pick disease glioblastoma hypertrophic cardiomyopathy subependymal giant cell astrocytoma large cell medulloblastoma major depressive disorder atypical teratoid rhabdoid tumor non-small cell lung carcinoma Noonan syndrome with multiple lentigines Charcot-Marie-Tooth disease ovarian carcinoma plasma cell myeloma
C, D	: Q8IVT5	Crohn disease interstitial cystitis ovarian cancer pancreatic intraductal papillary-mucinous neoplasm gastric carcinoma malignant pancreatic neoplasm pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia inflammatory bowel disease osteosarcoma pancreatic intraductal papillary-mucinous carcinoma ulcerative colitis

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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.