1H4X | pdb_00001h4x

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1h4xb_	Alpha and beta proteins (a/b)	SpoIIaa-like	SpoIIaa-like	Anti-sigma factor antagonist SpoIIaa	Anti-sigma factor antagonist SpoIIaa	(Lysinibacillus sphaericus ) [TaxId: 1421 ],	SCOPe (2.08)
A	d1h4xa_	Alpha and beta proteins (a/b)	SpoIIaa-like	SpoIIaa-like	Anti-sigma factor antagonist SpoIIaa	Anti-sigma factor antagonist SpoIIaa	(Lysinibacillus sphaericus ) [TaxId: 1421 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	SpoIIaa-like	8032910	3001065	SCOP2B (2022-06-29)
A	SCOP2 Family	Anti-sigma factor antagonist SpoIIaa	8020530	4003567	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SpoIIaa-like	8032910	3001065	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	STAS	e1h4xB1	A: a/b three-layered sandwiches	X: SpoIIaa-like (From Topology)	H: SpoIIaa-like (From Topology)	T: SpoIIaa-like	F: STAS	ECOD (1.6)
A	STAS	e1h4xA1	A: a/b three-layered sandwiches	X: SpoIIaa-like (From Topology)	H: SpoIIaa-like (From Topology)	T: SpoIIaa-like	F: STAS	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.750.24	Alpha Beta	2-Layer Sandwich	Transcription Regulator spoIIAA	STAS domain	CATH (4.2.0)
A	3.30.750.24	Alpha Beta	2-Layer Sandwich	Transcription Regulator spoIIAA	STAS domain	CATH (4.2.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	ANTI-SIGMA F FACTOR ANTAGONIST	transcription regulator activity anti-sigma factor antagonist activity protein binding binding antisigma factor binding	sporulation resulting in formation of a cellular spore developmental process anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development sporulation	-

Chains	Accession	Name	Type
A, B	IPR036513	STAS domain superfamily	Homologous Superfamily
A, B	IPR014237	Anti-sigma F factor antagonist	Family
A, B	IPR002645	STAS domain	Domain
A, B	IPR003658	Anti-sigma factor antagonist	Family

Modified Residue(s)
Chain	Residue(s)	Description
A, B	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046

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.

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