1NQH

OUTER MEMBRANE COBALAMIN TRANSPORTER (BTUB) FROM E. COLI, WITH BOUND CALCIUM AND CYANOCOBALAMIN (VITAMIN B12) SUBSTRATE

Summary for 1NQH

• Entry DOI: 10.2210/pdb1nqh/pdb
• Related: 1NQE 1NQF 1NQG
• Descriptor: VITAMIN B12 RECEPTOR, CALCIUM ION, CYANOCOBALAMIN, ... (4 entities in total)
• Functional Keywords: beta barrel, cobalamin, vitamin b12, membrane transport, calcium binding, transport protein
• Biological source: Escherichia coli
• Cellular location: Cell outer membrane; Multi-pass membrane protein: P06129
• Total number of polymer chains: 1
• Total formula weight: 69741.49

Authors

Chimento, D.P.,Mohanty, A.K.,Kadner, R.J.,Wiener, M.C. (deposition date: 2003-01-21, release date: 2003-04-29, Last modification date: 2023-08-16)

• Primary citation: CHIMENTO, D.P.,MOHANTY, A.K.,KADNER, R.J.,WIENER, M.C.; Substrate-induced transmembrane signaling in the cobalamin transporter BtuB; Nat.Struct.Biol., 10:394-401, 2003; PubMed: 12652322; DOI: 10.1038/nsb914

Experimental method

X-RAY DIFFRACTION (3.1 Å)