Research Article

Niobium Uptake and Release by Bacterial Ferric Ion Binding Protein

Table 1

Analysis of the products from reactions of apo-Fbp with [Cp2Nb(OH)Cl2] and [Nb(NTA)2].

Reaction mixture Product Reaction mixtureProduct

[Cp2Nb(OH)Cl2]/[Fbp][Nb]/[Fbp][Nb(NTA)2]/[Fbp][Nb]/[Fbp]
1 : 1  : 11 : 1  : 1
20 : 1  :  120 : 1  : 1

Reactions carried out for 48  hours in 10 mM HEPES buffer, pH 7.4, 310 K.
Fbp concentration determined from A280.