Brand  (β version)

PDB ID: 1N4A

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Ligands
Code Name Style Show Link
CNC Cyanocobalamin PoSSuM
Non-standard Residues
Code Name Show
MSE Selenomethionine
Glycosylation
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Modification
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Structure summary

Code : 1N4A   PDBj   RCSB PDB   PDBe
Header : TRANSPORT PROTEIN
Title : The Ligand Bound Structure of E.coli BtuF, the Periplasmic Binding Protein for Vitamin B12
Release Data : 2003-03-11
Compound :
mol_id molecule chains
1 Vitamin B12 transport protein btuF A,B
Source :
mol_id organism_scientific expression_system
1 Escherichia coli  (taxid:562) Escherichia coli BL21(DE3)  (taxid:469008)
expression_system_strain: BL21(de3)
expression_system_vector_type: plasmid
expression_system_plasmid: pet24A
Authors : Karpowich, N.K., Smith, P.C., Hunt, J.F., Northeast Structural Genomics Consortium (NESG)
Keywords : ABC transporter, periplasmic binding protein, Vitamin B12, transmembrane transport, Structural Genomics, PSI, Protein Structure Initiative, Northeast Structural Genomics Consortium, NESG, TRANSPORT PROTEIN
Exp. method : X-RAY DIFFRACTION ( 2.00 Å )
Citation :

Crystal structures of the BtuF periplasmic-binding protein for vitamin B12 suggest a functionally important reduction in protein mobility upon ligand binding.

Karpowich, N.K.,Huang, H.H.,Smith, P.C.  et al.
(2003)  J.Biol.Chem.  278 : 8429 - 8434

PubMed: 12468528
DOI: 10.1074/jbc.M212239200

Reaction

Chain : A, B
UniProt : P37028 (BTUF_ECOLI)
Reaction : -