Annotations: 3MKY

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth B]	PRK13698	e3mkyB1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: PRK13698	ECOD (1.6)
D [auth P]	PRK13698	e3mkyP1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: PRK13698	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth B]	1.10.10.2830	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A		CATH (4.3.0)
D [auth P]	1.10.10.2830	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth B], D [auth P]	PF18090	Centromere-binding protein HTH domain (SoPB_HTH)	Centromere-binding protein HTH domain	This domain is found in centromere-binding protein (SopB). SopB displays an intriguing range of DNA-binding properties essential for partition; it binds the centromere to form a partition complex, which recruits NTPase (SopA), and it also inhibits So ...	This domain is found in centromere-binding protein (SopB). SopB displays an intriguing range of DNA-binding properties essential for partition; it binds the centromere to form a partition complex, which recruits NTPase (SopA), and it also inhibits SopA polymerization. The domain has a helix-turn-helix (HTH) structure and is thought to be the specific DNA-binding domain mainly through residues from the recognition helix, alpha 3, of the HTH. The domain has show structural similarity to the DNA-binding domains of P1 ParB and KorB [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth B], D [auth P]	Protein sopB	DNA binding binding organic cyclic compound binding nucleic acid binding	plasmid partitioning cellular process plasmid maintenance	-
A [auth U], B [auth T]	DNA (5'-D(CPTPGPGPGPAPCPCPAPTPGPGPTPCPCPCPAPG)-3')	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth B], D [auth P]	IPR036086	ParB/Sulfiredoxin superfamily	Homologous Superfamily
C [auth B], D [auth P]	IPR040873	SopB, HTH domain	Domain
C [auth B], D [auth P]	IPR004437	ParB/RepB/Spo0J partition protein	Domain
C [auth B], D [auth P]	IPR003115	ParB/Sulfiredoxin	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.