Annotations: 6FKM

Drosophila Plexin A in complex with Semaphorin 1b

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Plexin repeat-like	8101124	3000415	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Sema domain-like	8099982	3000180	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)
B	Cupin_2	e6fkmB1	A: beta barrels	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Cupin_2	ECOD (v294.2)
A	C1-set	e6fkmA1	A: beta barrels	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: C1-set	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.130.10.10	Mainly Beta	7 Propeller	Methylamine Dehydrogenase	Chain H	CATH (4.3.0)
A	3.30.1680.10	Alpha Beta	2-Layer Sandwich	ligand-binding face of the semaphorins, domain 2	ligand-binding face of the semaphorins, domain 2	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF01437	Plexin repeat (PSI)	Plexin repeat	A cysteine rich repeat found in several different extracellular receptors. The function of the repeat is unknown. Three copies of the repeat are found Plexin (Swiss:P70206) [1]. Two copies of the repeat are found in mahogany protein. A related C. el ...	A cysteine rich repeat found in several different extracellular receptors. The function of the repeat is unknown. Three copies of the repeat are found Plexin (Swiss:P70206) [1]. Two copies of the repeat are found in mahogany protein. A related C. elegans protein (Swiss:Q19981) contains four copies of the repeat. The Met receptor contains a single copy of the repeat. The Pfam alignment shows 6 conserved cysteine residues that may form three conserved disulphide bridges, whereas [1] shows 8 conserved cysteines. The pattern of conservation suggests that cysteines 5 and 7 (that are not absolutely conserved) form a disulphide bridge (Personal observation. A Bateman).	Domain
B	PF01403	Sema domain (Sema)	Sema domain	-	Repeat
A	PF01437	Plexin repeat (PSI)	Plexin repeat	A cysteine rich repeat found in several different extracellular receptors. The function of the repeat is unknown. Three copies of the repeat are found Plexin (Swiss:P70206) [1]. Two copies of the repeat are found in mahogany protein. A related C. el ...	A cysteine rich repeat found in several different extracellular receptors. The function of the repeat is unknown. Three copies of the repeat are found Plexin (Swiss:P70206) [1]. Two copies of the repeat are found in mahogany protein. A related C. elegans protein (Swiss:Q19981) contains four copies of the repeat. The Met receptor contains a single copy of the repeat. The Pfam alignment shows 6 conserved cysteine residues that may form three conserved disulphide bridges, whereas [1] shows 8 conserved cysteines. The pattern of conservation suggests that cysteines 5 and 7 (that are not absolutely conserved) form a disulphide bridge (Personal observation. A Bateman).	Domain
A	PF01403	Sema domain (Sema)	Sema domain	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	MIP07328p	protein binding binding semaphorin receptor binding signaling receptor binding molecular function activator activity molecular function regulator activity signaling receptor regulator activity chemorepellent activity receptor ligand activity signaling receptor activator activity	developmental process multicellular organism development multicellular organismal process embryo development ending in birth or egg hatching anatomical structure development embryo development embryonic development via the syncytial blastoderm cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus semaphorin-plexin signaling pathway signaling developmental process multicellular organism development multicellular organismal process embryo development ending in birth or egg hatching anatomical structure development embryo development embryonic development via the syncytial blastoderm cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus semaphorin-plexin signaling pathway signaling biological regulation cell communication cellular process signal transduction chemotaxis negative chemotaxis taxis response to chemical response to external stimulus locomotion axonogenesis cellular developmental process cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell morphogenesis cellular component organization neurogenesis cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation cellular component organization or biogenesis system development plasma membrane bounded cell projection organization 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 locomotion regulation of cell motility positive regulation of biological process positive regulation of cell migration regulation of locomotion positive regulation of cell motility regulation of cell migration cell migration cell motility positive regulation of cellular process stem cell development neural crest cell differentiation animal organ development neural crest cell development mesenchyme development tissue development mesenchymal cell migration stem cell differentiation ameboidal-type cell migration mesenchymal cell differentiation neural crest cell migration	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane
A	Plexin A, isoform A	molecular transducer activity transmembrane signaling receptor activity signaling receptor activity semaphorin receptor activity GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity cyclase regulator activity cyclase activator activity guanylate cyclase activator activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity semaphorin receptor activity GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity cyclase regulator activity cyclase activator activity guanylate cyclase activator activity guanylate cyclase regulator activity protein binding binding 14-3-3 protein binding heparin binding glycosaminoglycan binding carbohydrate derivative binding sulfur compound binding	neuron recognition multicellular organismal process axonogenesis cellular developmental process cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development axon choice point recognition cell morphogenesis cellular component organization neurogenesis multicellular organism development cell projection morphogenesis neuron differentiation neuron recognition multicellular organismal process axonogenesis cellular developmental process cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development axon choice point recognition cell morphogenesis cellular component organization neurogenesis multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation anatomical structure development cell recognition cellular component organization or biogenesis system development developmental process plasma membrane bounded cell projection organization axon midline choice point recognition axon guidance nervous system development axon development cell morphogenesis involved in neuron differentiation generation of neurons anatomical structure morphogenesis neuron projection guidance neuron development cellular process regulation of biological process regulation of cell motility regulation of cellular process regulation of locomotion regulation of cell migration biological regulation cell migration cell motility locomotion cellular response to stimulus small GTPase-mediated signal transduction response to stimulus signaling Ras protein signal transduction intracellular signal transduction cell communication intracellular signaling cassette signal transduction cell surface receptor signaling pathway semaphorin-plexin signaling pathway photoreceptor cell axon guidance cellular component biogenesis cell junction organization cellular component assembly cell junction assembly synapse organization synapse assembly sensory neuron axon guidance	cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex semaphorin receptor complex signaling receptor complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR002165	Plexin repeat	Repeat
B	IPR042068	Semaphorin-1A, sema domain	Domain
B	IPR036352	Sema domain superfamily	Homologous Superfamily
B	IPR001627	Sema domain	Domain
B	IPR027231	Semaphorin	Family
B	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
A	IPR002909	IPT domain	Domain
A	IPR041362	Plexin, TIG domain 2	Domain
A	IPR016201	PSI domain	Domain
A	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A	IPR008936	Rho GTPase activation protein	Homologous Superfamily
A	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
A	IPR002165	Plexin repeat	Repeat
A	IPR041019	Plexin, TIG domain 1	Domain
A	IPR031148	Plexin family	Family
A	IPR046800	Plexin, cytoplasmic RhoGTPase-binding domain	Domain
A	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A	IPR013548	Plexin, cytoplasmic RasGAP domain	Domain
A	IPR036352	Sema domain superfamily	Homologous Superfamily
A	IPR001627	Sema domain	Domain