4GF4 | pdb_00004gf4

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	FRB_dom	e4gf4A1	A: a/b three-layered sandwiches	X: Ribonuclease H-like	H: Ribonuclease H-like	T: Ribonuclease H-like	F: FRB_dom	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.160.180	Mainly Beta	Beta Barrel	Porin	Carbohydrate-selective porin OprB	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Porin B	wide pore channel activity passive transmembrane transporter activity channel activity porin activity transporter activity transmembrane transporter activity	localization transport carbohydrate transport establishment of localization	cellular anatomical structure membrane

Chains	Accession	Name	Type
A	IPR052932	OprB Porin	Family
A	IPR038673	Carbohydrate-selective porin OprB superfamily	Homologous Superfamily
A	IPR007049	Carbohydrate-selective porin OprB	Family

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Transmembrane	Beta-barrel transmembrane	Trimeric porins (n=16,S=20)	Glucose-selective OprB porin

Chains	External Link	Comment
A	PDBTM	Annotated as membrane protein by PDBTM

Chains	External Link	Comment
A	MemProtMD	Annotated as membrane protein by MemProtMD

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: BETA-BARREL	Beta-Barrel Membrane Proteins: Porins and Relatives	OprB carbohydrate-specific transporter at high pH

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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