Annotations: 8AIN

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF03167	e8ainA1	A: a/b three-layered sandwiches	X: Uracil-DNA glycosylase-like (From Topology)	H: Uracil-DNA glycosylase-like (From Topology)	T: Uracil-DNA glycosylase-like	F: PF03167	ECOD (1.6)
B	PF06106	e8ainB1	A: a+b two layers	X: Cystatin-like	H: Uracil-DNA glycosylase inhibitor protein (From Topology)	T: Uracil-DNA glycosylase inhibitor protein	F: PF06106	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A	PF03167	Uracil DNA glycosylase superfamily (UDG)	Uracil DNA glycosylase superfamily	-	Domain
B	PF06106	S. aureus uracil DNA glycosylase inhibitor (SAUGI)	S. aureus uracil DNA glycosylase inhibitor	Uracil-DNA glycosylase inhibitors, are DNA mimic proteins that prevent the DNA binding sites of UDGs (Uracil DNA glycosylase) from interacting with their DNA substrate. SSP0047 Swiss:Q4A134 (or SAUGI; for Staphylococcus aureus uracil-DNA glycosylase ...	Uracil-DNA glycosylase inhibitors, are DNA mimic proteins that prevent the DNA binding sites of UDGs (Uracil DNA glycosylase) from interacting with their DNA substrate. SSP0047 Swiss:Q4A134 (or SAUGI; for Staphylococcus aureus uracil-DNA glycosylase inhibitor) acts as a uracil-DNA glycosylase inhibitor that breaks the uracil-removing activity of S. aureus uracil-DNA glycosylase (SAUDG) Pfam:PF03167 [1]. The SAUGI/SAUDG complex has been determined, and shows that SAUGI binds to the SAUDG DNA binding region via several strong interactions, by using a hydrophobic pocket to hold SAUDG's protruding residue (i.e. SAUDG Leu184, E. coli UDG Leu191 and B. subtilis UDG Phe191). By binding to SAUDG in this way, SAUGI thus prevents SAUDG from binding to its DNA substrate and performing DNA repair activity [2].	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Uracil-DNA glycosylase	uracil DNA N-glycosylase activity hydrolase activity, acting on glycosyl bonds deaminated base DNA N-glycosylase activity catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid hydrolase activity DNA N-glycosylase activity hydrolase activity, hydrolyzing N-glycosyl compounds catalytic activity	cellular response to stimulus response to stimulus base-excision repair, AP site formation via deaminated base removal primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process base-excision repair cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process cellular response to stimulus response to stimulus base-excision repair, AP site formation via deaminated base removal primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process base-excision repair cellular response to stress DNA damage response response to stress metabolic process cellular process macromolecule metabolic process base-excision repair, AP site formation DNA repair	intracellular anatomical structure cytoplasm cellular anatomical entity
B	MCUGI	-	-	-

Chains	Accession	Name	Type
A	IPR002043	Uracil-DNA glycosylase family 1	Family
A	IPR018085	Uracil-DNA glycosylase, active site	Active Site
A	IPR036895	Uracil-DNA glycosylase-like domain superfamily	Homologous Superfamily
A	IPR005122	Uracil-DNA glycosylase-like	Domain
B	IPR043068	Uracil DNA glycosylase inhibitor superfamily	Homologous Superfamily
B	IPR009295	S. aureus uracil DNA glycosylase inhibitor	Family