Annotations: 6QP9

Drosophila Semaphorin 1a, extracellular domains 1-2

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	8101122	3000415	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Sema domain-like	8099246	3000180	SCOP2B (2022-06-29)
A	SCOP2 Family	Sema domain-like	8099245	4000934	SCOP2 (2022-06-29)
A	SCOP2 Family	Plexin repeat-like	8101121	4001807	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Sema domain-like	8099246	3000180	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Plexin repeat-like	8101122	3000415	SCOP2 (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	V-set	e6qp9B1	A: beta barrels	X: jelly-roll	H: DUF1107-like	T: DUF1107-like	F: V-set	ECOD (v294.2)
A	TSP_1	e6qp9A1	A: beta barrels	X: Ribosomal protein S5 domain 2-like	H: Ntn	T: Proteasome subunits	F: TSP_1	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 (utative)
A	2.130.10.10	Mainly Beta	7 Propeller	Methylamine Dehydrogenase	Chain H	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, 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
A, B	PF01403	Sema domain (Sema)	Sema domain	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Semaphorin-1A	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 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 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 signal transduction chemotaxis negative chemotaxis taxis response to chemical response to external stimulus locomotion 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 motor neuron axon guidance synaptic target recognition photoreceptor cell axon guidance dendrite development dendrite morphogenesis cellular component biogenesis cell junction organization cellular component assembly cell junction assembly synapse organization synapse assembly 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 negative regulation of cell size regulation of cellular component size regulation of biological quality regulation of cell size regulation of anatomical structure size	cellular anatomical structure membrane cell periphery plasma membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR002165	Plexin repeat	Repeat
A, B	IPR016201	PSI domain	Domain
A, B	IPR042068	Semaphorin-1A, sema domain	Domain
A, B	IPR036352	Sema domain superfamily	Homologous Superfamily
A, B	IPR001627	Sema domain	Domain
A, B	IPR027231	Semaphorin	Family
A, B	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily

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