2YG9

Structure of an unusual 3-Methyladenine DNA Glycosylase II (Alka) from Deinococcus radiodurans

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HhH-GPD	e2yg9A1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: DNA-glycosylase	F: HhH-GPD	ECOD (1.6)
B	HhH-GPD	e2yg9B1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: DNA-glycosylase	F: HhH-GPD	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.1670.40	Mainly Alpha	Orthogonal Bundle	Endonuclease Iii, domain 2		CATH (4.3.0)
A	1.10.340.30	Mainly Alpha	Orthogonal Bundle	Endonuclease III	domain 1	CATH (4.3.0)
B	1.10.1670.40	Mainly Alpha	Orthogonal Bundle	Endonuclease Iii, domain 2		CATH (4.3.0)
B	1.10.340.30	Mainly Alpha	Orthogonal Bundle	Endonuclease III	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00730	HhH-GPD superfamily base excision DNA repair protein (HhH-GPD)	HhH-GPD superfamily base excision DNA repair protein	This family contains a diverse range of structurally related DNA repair proteins. The superfamily is called the HhH-GPD family after its hallmark Helix-hairpin-helix and Gly/Pro rich loop followed by a conserved aspartate [2]. This includes endonucle ...	This family contains a diverse range of structurally related DNA repair proteins. The superfamily is called the HhH-GPD family after its hallmark Helix-hairpin-helix and Gly/Pro rich loop followed by a conserved aspartate [2]. This includes endonuclease III, EC:4.2.99.18 and MutY an A/G-specific adenine glycosylase, both have a C terminal 4Fe-4S cluster. The family also includes 8-oxoguanine DNA glycosylases such as Swiss:P53397. The methyl-CPG binding protein MBD4 Swiss:Q9Z2D7 also contains a related domain [1] that is a thymine DNA glycosylase. The family also includes DNA-3-methyladenine glycosylase II EC:3.2.2.21 and other members of the AlkA family.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	DNA-3-methyladenine glycosidase II, putative	DNA binding alkylated DNA binding binding organic cyclic compound binding damaged DNA binding nucleic acid binding DNA-3-methyladenine glycosylase activity alkylbase DNA N-glycosylase activity hydrolase activity, acting on glycosyl bonds catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid hydrolase activity DNA-3-methylbase glycosylase activity DNA N-glycosylase activity DNA binding alkylated DNA binding binding organic cyclic compound binding damaged DNA binding nucleic acid binding DNA-3-methyladenine glycosylase activity alkylbase DNA N-glycosylase activity hydrolase activity, acting on glycosyl bonds catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid hydrolase activity DNA-3-methylbase glycosylase activity DNA N-glycosylase activity hydrolase activity, hydrolyzing N-glycosyl compounds catalytic activity DNA-7-methylguanine glycosylase activity	cellular response to stimulus response to stimulus cellular metabolic process cellular nitrogen compound metabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process DNA alkylation repair heterocycle metabolic process cellular response to stress DNA damage response response to stress cellular response to stimulus response to stimulus cellular metabolic process cellular nitrogen compound metabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process DNA alkylation repair heterocycle metabolic process cellular response to stress DNA damage response response to stress nitrogen compound metabolic process metabolic process cellular process macromolecule metabolic process cellular aromatic compound metabolic process DNA repair base-excision repair base-excision repair, AP site formation	protein-containing complex protein-DNA complex intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR003265	HhH-GPD domain	Domain
A, B	IPR023170	Helix-hairpin-helix, base-excision DNA repair, C-terminal	Homologous Superfamily
A, B	IPR011257	DNA glycosylase	Homologous Superfamily

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.