3SUA

Crystal structure of the intracellular domain of Plexin-B1 in complex with Rac1

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	Ras-like P-loop GTPases	8057406	3002022	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Ras-like P-loop GTPases	8057406	3002022	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Ras-like P-loop GTPases	8057406	3002022	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	Ras	e3suaA1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Ras	ECOD (1.6)
B	Ras	e3suaB1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Ras	ECOD (1.6)
C	Ras	e3suaC1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Ras	ECOD (1.6)
D	Plexin_cytopl_1st	e3suaD3	A: alpha bundles	X: GTPase activation domain, GAP (From Topology)	H: GTPase activation domain, GAP (From Topology)	T: GTPase activation domain, GAP	F: Plexin_cytopl_1st	ECOD (1.6)
D	Plexin_cytopl_2nd	e3suaD1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: Plexin_cytopl_2nd	ECOD (1.6)
E	Plexin_cytopl_1st	e3suaE3	A: alpha bundles	X: GTPase activation domain, GAP (From Topology)	H: GTPase activation domain, GAP (From Topology)	T: GTPase activation domain, GAP	F: Plexin_cytopl_1st	ECOD (1.6)
E	Plexin_cytopl_2nd	e3suaE1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: Plexin_cytopl_2nd	ECOD (1.6)
F	Plexin_cytopl_1st	e3suaF3	A: alpha bundles	X: GTPase activation domain, GAP (From Topology)	H: GTPase activation domain, GAP (From Topology)	T: GTPase activation domain, GAP	F: Plexin_cytopl_1st	ECOD (1.6)
F	Plexin_cytopl_2nd	e3suaF1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: Plexin_cytopl_2nd	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00071	Ras family (Ras)	Ras family	Includes sub-families Ras, Rab, Rac, Ral, Ran, Rap Ypt1 and more. Shares P-loop motif with GTP_EFTU, arf and myosin_head. See Pfam:PF00009 Pfam:PF00025, Pfam:PF00063. As regards Rab GTPases, these are important regulators of vesicle formation, motil ...	Includes sub-families Ras, Rab, Rac, Ral, Ran, Rap Ypt1 and more. Shares P-loop motif with GTP_EFTU, arf and myosin_head. See Pfam:PF00009 Pfam:PF00025, Pfam:PF00063. As regards Rab GTPases, these are important regulators of vesicle formation, motility and fusion. They share a fold in common with all Ras GTPases: this is a six-stranded beta-sheet surrounded by five alpha-helices [1].	Domain
D, E, F	PF20170	Plexin cytoplasmic RhoGTPase-binding domain (Plexin_RBD)	Plexin cytoplasmic RhoGTPase-binding domain	This entry represents the RhoGTPase-binding domain found in the cytoplasmic domain of plexins [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Ras-related C3 botulinum toxin substrate 1	thioesterase binding protein binding binding enzyme binding protein-containing complex binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity Rho GDP-dissociation inhibitor binding GDP-dissociation inhibitor binding thioesterase binding protein binding binding enzyme binding protein-containing complex binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity Rho GDP-dissociation inhibitor binding GDP-dissociation inhibitor binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding organic cyclic compound binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding kinase binding protein kinase binding G protein activity molecular function regulator activity	regulation of biological process regulation of cell motility regulation of cellular process regulation of leukocyte migration biological regulation neutrophil migration granulocyte migration leukocyte migration immune system process regulation of locomotion myeloid leukocyte migration regulation of cell migration cell migration cellular process regulation of biological process regulation of cell motility regulation of cellular process regulation of leukocyte migration biological regulation neutrophil migration granulocyte migration leukocyte migration immune system process regulation of locomotion myeloid leukocyte migration regulation of cell migration cell migration cellular process regulation of immune system process cell motility regulation of neutrophil migration locomotion lamellipodium assembly plasma membrane bounded cell projection organization cell projection organization plasma membrane bounded cell projection assembly cellular component organization cellular component biogenesis cellular component assembly lamellipodium organization cellular component organization or biogenesis cell projection assembly regulation of cell-substrate adhesion positive regulation of cell adhesion regulation of cell adhesion positive regulation of biological process cell-substrate adhesion cell adhesion positive regulation of cell-substrate adhesion positive regulation of cellular process regulation of cellular component size regulation of biological quality regulation of cell size regulation of anatomical structure size substrate adhesion-dependent cell spreading multicellular organismal process negative regulation of biological process cytokine production regulation of cytokine production negative regulation of cellular process regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of metabolic process negative regulation of cytokine production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process interleukin-23 production regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of interleukin-23 production negative regulation of multicellular organismal process regulation of metabolic process negative regulation of interleukin-23 production positive regulation of substrate adhesion-dependent cell spreading regulation of substrate adhesion-dependent cell spreading organelle organization actin cytoskeleton organization actin filament-based process cytoskeleton organization cellular response to stimulus cell surface receptor signaling pathway response to stimulus signaling cell surface receptor protein tyrosine kinase signaling pathway cell communication hepatocyte growth factor receptor signaling pathway signal transduction enzyme-linked receptor protein signaling pathway regulation of cellular component organization positive regulation of cellular component organization cell-substrate junction assembly positive regulation of cell-substrate junction organization cell junction assembly regulation of cell-substrate junction organization focal adhesion assembly positive regulation of focal adhesion assembly positive regulation of cellular component biogenesis positive regulation of cell-matrix adhesion regulation of cellular component biogenesis regulation of cell junction assembly positive regulation of cell junction assembly cell junction organization cell-matrix adhesion regulation of cell-matrix adhesion cell-substrate junction organization regulation of focal adhesion assembly regulation of cell-substrate junction assembly regulation of localization import into cell transport negative regulation of transport negative regulation of endocytosis vesicle-mediated transport localization regulation of endocytosis negative regulation of cellular component organization negative regulation of receptor-mediated endocytosis regulation of transport regulation of receptor-mediated endocytosis regulation of vesicle-mediated transport establishment of localization endocytosis receptor-mediated endocytosis Wnt signaling pathway, planar cell polarity pathway non-canonical Wnt signaling pathway Wnt signaling pathway small GTPase-mediated signal transduction Rac protein signal transduction intracellular signal transduction intracellular signaling cassette cell chemotaxis chemotaxis response to external stimulus cellular response to chemical stimulus taxis response to chemical response to stress response to wounding establishment or maintenance of cell polarity ruffle organization positive regulation of organelle organization regulation of cytoskeleton organization regulation of microtubule polymerization or depolymerization microtubule cytoskeleton organization regulation of protein-containing complex assembly positive regulation of protein-containing complex assembly microtubule polymerization or depolymerization positive regulation of protein polymerization protein-containing complex assembly protein polymerization positive regulation of microtubule polymerization or depolymerization protein-containing complex organization positive regulation of cytoskeleton organization regulation of microtubule-based process microtubule polymerization positive regulation of supramolecular fiber organization regulation of organelle organization positive regulation of microtubule polymerization regulation of protein polymerization regulation of microtubule polymerization regulation of supramolecular fiber organization microtubule-based process supramolecular fiber organization regulation of microtubule cytoskeleton organization actin filament organization sphingolipid mediated signaling pathway sphingosine-1-phosphate receptor signaling pathway G protein-coupled receptor signaling pathway negative regulation of locomotion regulation of fibroblast migration fibroblast migration negative regulation of fibroblast migration ameboidal-type cell migration negative regulation of cell motility negative regulation of cell migration positive regulation of locomotion endothelial cell migration positive regulation of cell migration positive regulation of endothelial cell migration positive regulation of cell motility regulation of endothelial cell migration regulation of actin filament-based process regulation of actin filament bundle assembly actin filament bundle organization stress fiber assembly regulation of actin filament organization actomyosin structure organization regulation of stress fiber assembly contractile actin filament bundle assembly regulation of actomyosin structure organization actin filament bundle assembly regulation of actin cytoskeleton organization actin polymerization or depolymerization actin filament polymerization axonogenesis cellular developmental process motor neuron axon guidance plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell morphogenesis neurogenesis multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation anatomical structure development system development developmental process axon guidance nervous system development axon development cell morphogenesis involved in neuron differentiation generation of neurons anatomical structure morphogenesis neuron projection guidance neuron development positive regulation of cell communication positive regulation of signal transduction regulation of small GTPase mediated signal transduction regulation of signal transduction Rho protein signal transduction positive regulation of response to stimulus regulation of intracellular signal transduction regulation of signaling positive regulation of intracellular signal transduction regulation of Rho protein signal transduction positive regulation of Rho protein signal transduction regulation of response to stimulus regulation of cell communication positive regulation of small GTPase mediated signal transduction positive regulation of signaling respiratory burst regulation of respiratory burst positive regulation of chemotaxis positive regulation of neutrophil chemotaxis positive regulation of immune system process regulation of leukocyte chemotaxis positive regulation of leukocyte chemotaxis positive regulation of granulocyte chemotaxis regulation of neutrophil chemotaxis regulation of response to external stimulus neutrophil chemotaxis regulation of granulocyte chemotaxis positive regulation of response to external stimulus positive regulation of leukocyte migration positive regulation of neutrophil migration regulation of chemotaxis granulocyte chemotaxis leukocyte chemotaxis regulation of hydrogen peroxide metabolic process reactive oxygen species metabolic process hydrogen peroxide metabolic process regulation of reactive oxygen species metabolic process regulation of nitric oxide biosynthetic process reactive nitrogen species metabolic process nitric oxide metabolic process nitric oxide biosynthetic process regulation of nitric oxide metabolic process regulation of developmental process regulation of cell shape regulation of cell morphogenesis regulation of anatomical structure morphogenesis cortical cytoskeleton organization semaphorin-plexin signaling pathway ruffle assembly positive regulation of phosphorylation regulation of protein modification process regulation of protein phosphorylation positive regulation of protein metabolic process positive regulation of phosphate metabolic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of protein modification process regulation of phosphate metabolic process phosphate-containing compound metabolic process positive regulation of macromolecule metabolic process protein metabolic process positive regulation of protein phosphorylation phosphorus metabolic process protein modification process protein phosphorylation positive regulation of phosphorus metabolic process phosphorylation regulation of protein metabolic process primary metabolic process macromolecule modification regulation of phosphorus metabolic process regulation of phosphorylation defense response inflammatory response cellular localization localization within membrane neuron migration regulation of cell projection organization regulation of cell projection assembly regulation of plasma membrane bounded cell projection assembly regulation of lamellipodium assembly regulation of lamellipodium organization regulation of plasma membrane bounded cell projection organization membrane organization engulfment of apoptotic cell phagocytosis, engulfment membrane invagination phagocytosis apoptotic cell clearance plasma membrane invagination positive regulation of cell projection organization positive regulation of lamellipodium assembly positive regulation of lamellipodium organization positive regulation of plasma membrane bounded cell projection assembly positive regulation of actin filament bundle assembly positive regulation of stress fiber assembly	cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol synapse cell junction glutamatergic synapse Golgi apparatus subcompartment Golgi apparatus organelle subcompartment intracellular membrane-bounded organelle endomembrane system intracellular organelle trans-Golgi network cytoskeleton membraneless organelle intracellular membraneless organelle neuron spine neuron projection dendritic spine somatodendritic compartment postsynapse dendrite dendritic tree anchoring junction focal adhesion cell-substrate junction pigment granule intracellular vesicle melanosome cytoplasmic vesicle cell periphery cell cortex ruffle plasma membrane leading edge membrane ruffle membrane plasma membrane region cell projection membrane protein-containing complex catalytic complex plasma membrane protein complex NADPH oxidase complex membrane protein complex oxidoreductase complex endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane endoplasmic reticulum membrane cytoplasmic ribonucleoprotein granule supramolecular complex ribonucleoprotein granule endosome membrane endosome recycling endosome cytoplasmic vesicle membrane bounding membrane of organelle recycling endosome membrane vesicle membrane secretory granule secretory vesicle secretory granule membrane ficolin-1-rich granule membrane ficolin-1-rich granule tertiary granule nucleus
D, E, F	Plexin-B1	molecular transducer activity transmembrane signaling receptor activity signaling receptor activity semaphorin receptor activity GTPase activating protein binding protein binding binding GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity semaphorin receptor activity GTPase activating protein binding protein binding binding GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity semaphorin receptor binding signaling receptor binding	positive regulation of molecular function regulation of molecular function positive regulation of hydrolase activity regulation of catalytic activity regulation of hydrolase activity biological regulation positive regulation of catalytic activity regulation of GTPase activity positive regulation of GTPase activity multicellular organismal process positive regulation of nervous system development axonogenesis regulation of cellular process cell projection organization positive regulation of molecular function regulation of molecular function positive regulation of hydrolase activity regulation of catalytic activity regulation of hydrolase activity biological regulation positive regulation of catalytic activity regulation of GTPase activity positive regulation of GTPase activity multicellular organismal process positive regulation of nervous system development axonogenesis regulation of cellular process cell projection organization regulation of cell differentiation regulation of neurogenesis neuron projection development regulation of cell development positive regulation of developmental process multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation anatomical structure development positive regulation of cell projection organization system development developmental process regulation of biological process regulation of cell projection organization positive regulation of cell development nervous system development generation of neurons positive regulation of multicellular organismal process regulation of neuron projection development regulation of cellular component organization positive regulation of cellular component organization cellular developmental process regulation of developmental process plasma membrane bounded cell projection morphogenesis positive regulation of biological process cell development cell morphogenesis cellular component organization regulation of nervous system development neurogenesis positive regulation of cell differentiation regulation of axonogenesis positive regulation of neurogenesis regulation of multicellular organismal process cellular component organization or biogenesis positive regulation of axonogenesis regulation of anatomical structure morphogenesis positive regulation of cellular process regulation of multicellular organismal development plasma membrane bounded cell projection organization axon development cell morphogenesis involved in neuron differentiation anatomical structure morphogenesis neuron development cellular process regulation of plasma membrane bounded cell projection organization cellular response to stimulus positive regulation of cell communication small GTPase-mediated signal transduction positive regulation of signal transduction response to stimulus signaling regulation of small GTPase mediated signal transduction regulation of signal transduction intracellular signal transduction Rho protein signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette signal transduction regulation of signaling positive regulation of intracellular signal transduction regulation of Rho protein signal transduction positive regulation of Rho protein signal transduction regulation of response to stimulus regulation of cell communication positive regulation of small GTPase mediated signal transduction positive regulation of signaling regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction phosphatidylinositol 3-kinase/protein kinase B signal transduction regulation of cytoskeleton organization regulation of organelle organization organelle organization cytoskeleton organization cell migration cell motility regulation of cell motility regulation of locomotion regulation of cell migration locomotion regulation of cell shape regulation of cell morphogenesis regulation of biological quality negative regulation of cell population proliferation cell population proliferation negative regulation of biological process osteoblast proliferation regulation of cell population proliferation negative regulation of cellular process negative regulation of osteoblast proliferation regulation of osteoblast proliferation cell surface receptor signaling pathway semaphorin-plexin signaling pathway bone maturation animal organ development developmental maturation skeletal system development ossification anatomical structure maturation ossification involved in bone maturation animal organ maturation bone development inhibitory synapse assembly cellular component biogenesis cell junction organization cellular component assembly cell junction assembly synapse organization synapse assembly cell adhesion regulation of cell adhesion negative regulation of cell adhesion	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane protein-containing complex semaphorin receptor complex receptor complex glutamatergic synapse cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane protein-containing complex semaphorin receptor complex receptor complex glutamatergic synapse extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR003578	Small GTPase Rho	Family
A, B, C	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, B, C	IPR005225	Small GTP-binding domain	Domain
A, B, C	IPR001806	Small GTPase	Family
D, E, F	IPR002909	IPT domain	Domain
D, E, F	IPR041362	Plexin, TIG domain 2	Domain
D, E, F	IPR016201	PSI domain	Domain
D, E, F	IPR014756	Immunoglobulin E-set	Homologous Superfamily
D, E, F	IPR008936	Rho GTPase activation protein	Homologous Superfamily
D, E, F	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
D, E, F	IPR002165	Plexin repeat	Repeat
D, E, F	IPR041019	Plexin, TIG domain 1	Domain
D, E, F	IPR031148	Plexin family	Family
D, E, F	IPR046800	Plexin, cytoplasmic RhoGTPase-binding domain	Domain
D, E, F	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
D, E, F	IPR013548	Plexin, cytoplasmic RasGAP domain	Domain
D, E, F	IPR036352	Sema domain superfamily	Homologous Superfamily
D, E, F	IPR001627	Sema domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C	Pharos: P63000	dilated cardiomyopathy melanoma Cardiotoxicity cutaneous melanoma congestive heart failure diabetes mellitus liver disease malignant glioma osteosarcoma plasma cell myeloma urinary bladder cancer heart disease hepatocellular carcinoma medulloblastoma ovarian cancer dilated cardiomyopathy melanoma Cardiotoxicity cutaneous melanoma congestive heart failure diabetes mellitus liver disease malignant glioma osteosarcoma plasma cell myeloma urinary bladder cancer heart disease hepatocellular carcinoma medulloblastoma ovarian cancer Sjogren syndrome depressive disorder dilated cardiomyopathy 1A heart failure intellectual disability lymphoplasmacytic lymphoma microcephaly pancreatic intraductal papillary-mucinous neoplasm intellectual disability, autosomal dominant 48
D, E, F	Pharos: O43157	Neurodevelopmental Disorders astrocytic tumor osteosarcoma subependymal giant cell astrocytoma Down syndrome ovarian cancer malignant ependymoma oligodendroglioma prostate cancer

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.