Annotations: 4CH7

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HTH_AsnC-type_1	e4ch7A4	A: alpha arrays	X: HTH	H: HTH	T: winged	F: HTH_AsnC-type_1	ECOD (1.6)
A	Lrp	e4ch7A1	A: a+b two layers	X: Alpha-beta plaits	H: Dimeric alpha+beta barrel (From Topology)	T: Dimeric alpha+beta barrel	F: Lrp	ECOD (1.6)
A	AsnC_trans_reg_like	e4ch7A2	A: a+b two layers	X: Alpha-beta plaits	H: Dimeric alpha+beta barrel (From Topology)	T: Dimeric alpha+beta barrel	F: AsnC_trans_reg_like	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.10.2890	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A		CATH (4.3.0)
A	3.30.70.3460	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF17805	AsnC-like ligand binding domain (AsnC_trans_reg2)	AsnC-like ligand binding domain	This entry contains an AsnC-like ligand binding domain.	Domain
A	PF22451	Siroheme decarboxylase NirDL-like HTH domain (NirdL-like_HTH)	Siroheme decarboxylase NirDL-like HTH domain	This entry represents the HTH domains found in siroheme decarboxylase NirdL from Hydrogenobacter thermophilus and related sequences [5]. NirdL is involved in heme d1 biosynthesis. It catalyses the decarboxylation of siroheme into didecarboxysiroheme. ...	This entry represents the HTH domains found in siroheme decarboxylase NirdL from Hydrogenobacter thermophilus and related sequences [5]. NirdL is involved in heme d1 biosynthesis. It catalyses the decarboxylation of siroheme into didecarboxysiroheme.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	NIRD-LIKE PROTEIN	lyase activity catalytic activity	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A	IPR040523	Siroheme decarboxylase , AsnC-like ligand binding domain	Domain
A	IPR050684	HTH-type Transcriptional Regulators and Siroheme Decarboxylases	Family
A	IPR019888	Transcription regulator AsnC-like	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.