5D1X | pdb_00005d1x

IsdB NEAT2 bound by D4-30

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
E	SCOP2B Superfamily	NEAT domain-like	8085279	3002054	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e5d1xA1	A: HTH	X: HTH	H: winged helix domain	T: Peripla_BP_6	F:	ECOD (20:10:01)
B		e5d1xB1	A: HTH	X: HTH	H: winged helix domain	T: Peripla_BP_6	F:	ECOD (20:10:01)
C		e5d1xC1	A: HTH	X: HTH	H: winged helix domain	T: Peripla_BP_6	F:	ECOD (20:10:01)
D		e5d1xD1	A: HTH	X: HTH	H: winged helix domain	T: Peripla_BP_6	F:	ECOD (20:10:01)
E		e5d1xE1	A: HTH	X: HTH	H: winged helix domain	T: Peripla_BP_6	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
E	2.60.40.1850	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A	Light Chain	IGKV2	Kappa	iron-regulated surface determinant protein b	SAbDab (2026-03-13)
C	Heavy Chain	IGHV3	-	iron-regulated surface determinant protein b	SAbDab (2026-03-13)
D	Light Chain	IGKV3	Kappa	iron-regulated surface determinant protein b	SAbDab (2026-03-13)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E	PF05031	Iron Transport-associated domain (NEAT)	Iron Transport-associated domain	NEAT domains are heme and/or hemoprotein-binding modules highly conserved in secondary structure [1]. They have roles in hemoprotein binding, heme extraction and heme transfer [2]	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	D4-30 Light Chain	-	-	-
B	D4-30 Heavy Chain	-	-	-
C	P5 Heavy Chain	-	-	-
D	P5 Light Chain	-	-	-
E	Iron-regulated surface determinant protein B	heme transmembrane transporter activity transporter activity transmembrane transporter activity cation binding ion binding binding metal ion binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E	IPR005877	YSIRK Gram-positive signal peptide	Domain
E	IPR050436	Iron-regulated surface determinant protein A	Family
E	IPR006635	NEAT domain	Domain
E	IPR048652	Iron-regulated surface determinant protein H/B, linker domain	Domain
E	IPR019929	Iron-regulated surface determinant protein IsdB	Family
E	IPR019931	LPXTG cell wall anchor motif	Conserved Site
E	IPR037250	NEAT domain superfamily	Homologous Superfamily

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.