CATH Domain 1nqeA02

CATH Classification

Level	CATH Code	Description
	2	Mainly Beta
	2.40	Beta Barrel
	2.40.170	Maltoporin; Chain A
	2.40.170.20	TonB-dependent receptor, beta-barrel domain

Domain Context

CATH Clusters

Superfamily	TonB-dependent receptor, beta-barrel domain
Functional Family	Vitamin B12 transporter BtuB

Enzyme Information

UniProtKB Entries (1)

BTUB_ECOLI

Escherichia coli K-12

Vitamin B12 transporter BtuB

PDB Structure

PDB	1NQE
External Links	PDBSum Proteopedia
Method	X-RAY DIFFRACTION
Organism	Escherichia
Primary Citation	Substrate-induced transmembrane signaling in the cobalamin transporter BtuB Chimento, D.P., Mohanty, A.K., Kadner, R.J., Wiener, M.C. Nat.Struct.Biol.