SMTL ID : 1n4a.1 (1 other biounit)

The Ligand Bound Structure of E.coli BtuF, the Periplasmic Binding Protein for Vitamin B12

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.00 Å

Oligo State

monomer

Ligands

1 x CNC: CYANOCOBALAMIN(Non-covalent)

CNC.1: 17 residues within 4Å: Chain A: S.8, P.9, A.10, Y.28, T.43, W.44, W.63, G.65, G.66, F.140, N.143, F.146, W.174, S.219, D.220, E.223, R.224 32 PLIP interactions: 31 interactions with chain A, 1 Ligand-Ligand interactions Hydrophobic interactions: A:P.9, A:Y.28, A:Y.28, A:W.44, A:W.44, A:W.44, A:W.63, A:W.63, A:F.140, A:F.146, A:F.146, A:W.174, A:W.174, A:E.223, A:R.224 Hydrogen bonds: A:S.8, A:A.10, A:W.63, A:N.143, A:D.220, A:E.223, A:R.224, A:R.224 Water bridges: A:S.8, A:Y.28, A:W.44, A:W.44, A:T.193, A:T.193, A:A.225, A:A.225 Metal complexes: CNC.1

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Karpowich, N.K. et al., 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. (2003)

Release Date

2003-03-11

Peptides

Vitamin B12 transport protein btuF: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Vitamin B12 transport protein btuF

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