1N4D

The Ligand-Free Structure of E coli BtuF, the Periplasmic Binding Protein for Vitamin B12

Summary for 1N4D

• Entry DOI: 10.2210/pdb1n4d/pdb
• Related: 1n4a
• Descriptor: Vitamin B12 transport protein btuF (1 entity in total)
• Functional Keywords: abc transporter, vitamin b12, periplasmic binding protein, transmembrane transport, transport protein
• Biological source: Escherichia coli
• Cellular location: Periplasm: P37028
• Total number of polymer chains: 2
• Total formula weight: 56281.36

Authors

Karpowich, N.,Smith, P.C.,Hunt, J.F. (deposition date: 2002-10-30, release date: 2003-03-11, Last modification date: 2011-07-13)

• Primary citation: Karpowich, N.K.,Huang, H.H.,Smith, P.C.,Hunt, J.F.; Crystal Structures of the BtuF Periplasmic-binding Protein for Vitamin B12 Suggest a Functionally Important Reduction in Protein Mobility upon Ligand Binding; J.BIOL.CHEM., 278:8429-8434, 2003; PubMed: 12468528; DOI: 10.1074/jbc.M212239200

Experimental method

X-RAY DIFFRACTION (3 Å)