3MAY

Crystal structure of a secreted Mycobacterium tuberculosis heme-binding protein

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
A	SCOP2B Superfamily	MHB-like	8091614	3002527	SCOP2B (2022-06-29)
B	SCOP2 Family	MHB-like	8045713	4004634	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	MHB-like	8091614	3002527	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	MHB-like	8091614	3002527	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	MHB-like	8091614	3002527	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	MHB-like	8091614	3002527	SCOP2B (2022-06-29)
F [auth G]	SCOP2B Superfamily	MHB-like	8091614	3002527	SCOP2B (2022-06-29)
G [auth F]	SCOP2B Superfamily	MHB-like	8091614	3002527	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	MHB-like	8091614	3002527	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	MHB	e3mayA1	A: alpha duplicates or obligate multimers	X: ROP-like	H: HP1531-like (From Topology)	T: HP1531-like	F: MHB	ECOD (1.6)
B	MHB	e3mayB1	A: alpha duplicates or obligate multimers	X: ROP-like	H: HP1531-like (From Topology)	T: HP1531-like	F: MHB	ECOD (1.6)
C	MHB	e3mayC1	A: alpha duplicates or obligate multimers	X: ROP-like	H: HP1531-like (From Topology)	T: HP1531-like	F: MHB	ECOD (1.6)
D	MHB	e3mayD1	A: alpha duplicates or obligate multimers	X: ROP-like	H: HP1531-like (From Topology)	T: HP1531-like	F: MHB	ECOD (1.6)
E	MHB	e3mayE1	A: alpha duplicates or obligate multimers	X: ROP-like	H: HP1531-like (From Topology)	T: HP1531-like	F: MHB	ECOD (1.6)
F [auth G]	MHB	e3mayG1	A: alpha duplicates or obligate multimers	X: ROP-like	H: HP1531-like (From Topology)	T: HP1531-like	F: MHB	ECOD (1.6)
G [auth F]	MHB	e3mayF1	A: alpha duplicates or obligate multimers	X: ROP-like	H: HP1531-like (From Topology)	T: HP1531-like	F: MHB	ECOD (1.6)
H	MHB	e3mayH1	A: alpha duplicates or obligate multimers	X: ROP-like	H: HP1531-like (From Topology)	T: HP1531-like	F: MHB	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.20.20	Mainly Alpha	Up-down Bundle	F1FO ATP Synthase	Haemophore, haem-binding domain	CATH (4.3.0)
B	1.20.20.20	Mainly Alpha	Up-down Bundle	F1FO ATP Synthase	Haemophore, haem-binding domain	CATH (4.3.0)
C	1.20.20.20	Mainly Alpha	Up-down Bundle	F1FO ATP Synthase	Haemophore, haem-binding domain	CATH (4.3.0)
D	1.20.20.20	Mainly Alpha	Up-down Bundle	F1FO ATP Synthase	Haemophore, haem-binding domain	CATH (4.3.0)
E	1.20.20.20	Mainly Alpha	Up-down Bundle	F1FO ATP Synthase	Haemophore, haem-binding domain	CATH (4.3.0)
F [auth G]	1.20.20.20	Mainly Alpha	Up-down Bundle	F1FO ATP Synthase	Haemophore, haem-binding domain	CATH (4.3.0)
G [auth F]	1.20.20.20	Mainly Alpha	Up-down Bundle	F1FO ATP Synthase	Haemophore, haem-binding domain	CATH (4.3.0)
H	1.20.20.20	Mainly Alpha	Up-down Bundle	F1FO ATP Synthase	Haemophore, haem-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E, A, B, C, D, E, F [auth G], G [auth F], H	PF16525	Haemophore, haem-binding (MHB)	Haemophore, haem-binding	MHB is a coiled-coil molecule that binds free haem in mycobacterial cytoplasm to deliver it to membrane proteins for shuttling through the membrane [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E, A, B, C, D, E, F [auth G], G [auth F], H	POSSIBLE EXPORTED PROTEIN	binding organic cyclic compound binding tetrapyrrole binding heme binding	nitrogen compound transport transport iron ion transport establishment of localization metal ion transport localization heme transport transition metal ion transport monoatomic ion transport monoatomic cation transport iron coordination entity transport	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E, A, B, C, D, E, F [auth G], G [auth F], H	IPR030937	Hemophore Rv0203	Family
A, B, C, D, E, A, B, C, D, E, F [auth G], G [auth F], H	IPR032407	Haemophore, haem-binding	Domain
A, B, C, D, E, A, B, C, D, E, F [auth G], G [auth F], H	IPR038378	Haemophore, haem-binding 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 R01GM133198.