4XMH | pdb_00004xmh

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Lipocalins	8085240	3001332	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PhyH	e4xmhA1	A: alpha bundles	X: ssDNA-binding transcriptional regulator domain-like	H: ssDNA-binding transcriptional regulator domain	T: ssDNA-binding transcriptional regulator domain	F: PhyH	ECOD (develop294)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.128.20	Mainly Beta	Beta Barrel	Lipocalin	Calycin beta-barrel core domain	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A	PF02087	Nitrophorin (Nitrophorin)	Nitrophorin		Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	GLY-GLY-GLY	-	-	-
A	Nitrophorin-7	oxidoreductase activity catalytic activity nitric oxide binding binding small molecule binding cation binding histamine binding ion binding heterocyclic compound binding metal ion binding toxin activity	regulation of tube diameter multicellular organismal process system process regulation of tube size biological regulation circulatory system process vascular process in circulatory system blood vessel diameter maintenance regulation of biological quality vasodilation blood circulation regulation of anatomical structure size biological process involved in interspecies interaction between organisms modulation of process of another organism regulation of tube diameter multicellular organismal process system process regulation of tube size biological regulation circulatory system process vascular process in circulatory system blood vessel diameter maintenance regulation of biological quality vasodilation blood circulation regulation of anatomical structure size biological process involved in interspecies interaction between organisms modulation of process of another organism venom-mediated perturbation of biological process	cellular anatomical structure extracellular region

Chains	Accession	Name	Type
A	IPR012674	Calycin	Homologous Superfamily
A	IPR002351	Nitrophorin domain	Domain
A	IPR023613	Nitrophorin	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.

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