Annotations: 3KPH

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3kpha_	All alpha proteins	Superantigen MAM	Superantigen MAM	Superantigen MAM	automated matches	(Metamycoplasma arthritidis ) [TaxId: 2111 ],	SCOPe (2.08)
B	d3kphb_	All alpha proteins	Superantigen MAM	Superantigen MAM	Superantigen MAM	automated matches	(Metamycoplasma arthritidis ) [TaxId: 2111 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Superantigen MAM	8042683	3001107	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Superantigen MAM	8042683	3001107	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	PF09245	e3kphA1	A: alpha arrays	X: Superantigen MAM C-terminal domain (From Topology)	H: Superantigen MAM C-terminal domain (From Topology)	T: Superantigen MAM C-terminal domain	F: PF09245	ECOD (1.6)
A	PF09245	e3kphA2	A: alpha bundles	X: N-cbl like	H: Superantigen MAM N-terminal domain (From Topology)	T: Superantigen MAM N-terminal domain	F: PF09245	ECOD (1.6)
B	PF09245	e3kphB1	A: alpha arrays	X: Superantigen MAM C-terminal domain (From Topology)	H: Superantigen MAM C-terminal domain (From Topology)	T: Superantigen MAM C-terminal domain	F: PF09245	ECOD (1.6)
B	PF09245	e3kphB2	A: alpha bundles	X: N-cbl like	H: Superantigen MAM N-terminal domain (From Topology)	T: Superantigen MAM N-terminal domain	F: PF09245	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.120.390	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Hla class ii histocompatibility antigen, dr alpha chain. Chain D, domain 1	CATH (4.3.0)
A	1.10.10.530	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	mam-mhc complex, Chain D, Domain 2	CATH (4.3.0)
B	1.20.120.390	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Hla class ii histocompatibility antigen, dr alpha chain. Chain D, domain 1	CATH (4.3.0)
B	1.10.10.530	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	mam-mhc complex, Chain D, Domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF09245	Mycoplasma arthritidis-derived mitogen (MA-Mit)	Mycoplasma arthritidis-derived mitogen	Mycoplasma arthritidis-derived mitogen (MA-Mit) adopts a completely alpha-helical structure consisting of ten alpha helices. It is a superantigen that can activate large fractions of T cells bearing particular TCR V-beta elements. Two MA-Mit molecule ...	Mycoplasma arthritidis-derived mitogen (MA-Mit) adopts a completely alpha-helical structure consisting of ten alpha helices. It is a superantigen that can activate large fractions of T cells bearing particular TCR V-beta elements. Two MA-Mit molecules form an asymmetric dimer and cross-link two MHC antigens to form a dimerised MA-Mit-MHC complex [1].	Domain

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036342	Superantigen MAM	Homologous Superfamily
A, B	IPR042074	Mycoplasma arthritidis-derived mitogen, C-terminal	Homologous Superfamily
A, B	IPR015326	Mycoplasma arthritidis-derived mitogen	Family

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 R01GM133198.