Annotations: 2DBB

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	V-set	e2dbbA1	A: alpha arrays	X: Globin-like	H: Globin-like	T: Globin-like	F: V-set	ECOD (v295.2)
B	ACR_tran	e2dbbB1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: ACR_tran	ECOD (v295.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
A	3.30.70.920	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Lrp/AsnC effector binding domain/regulation of amino acid metabolism (RAM) domain	CATH (4.3.0)
B	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
B	3.30.70.920	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Lrp/AsnC effector binding domain/regulation of amino acid metabolism (RAM) domain	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Putative HTH-type transcriptional regulator PH0061	sequence-specific DNA binding DNA binding binding nucleic acid binding	RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process metabolic process cellular process macromolecule metabolic process	-

Chains	Accession	Name	Type
A, B	IPR050684	Transcriptional regulator Lrp/AsnC/Siroheme decarboxylase	Family
A, B	IPR019885	Transcription regulator HTH, AsnC-type, conserved site	Conserved Site
A, B	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR000485	AsnC-type HTH domain	Domain
A, B	IPR011008	Dimeric alpha-beta barrel	Homologous Superfamily
A, B	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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

2DBB | pdb_00002dbb