ISSN:
1432-072X
Keywords:
Clostridium acidiurici
;
Clostridium cylindrosporum
;
Tungsten uptake
;
Molybdate antagonism
;
Formate dehydrogenase
;
Tungsten-binding-storage protein
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Uptake of tungstate by growing cells was unaffected by the presence of molybdate in Clostridium cylindrosporum, whereas in C. acidiurici the accumulation was decreased by molybdate at 10-6 mol/l tungstate and higher concentrations. The labelling pattern of soluble proteins by 185W-tungsten indicated after gel chromatography the presence of three different tungstoproteins in both bacteria. Formate dehydrogenase activity always eluted at a maximum of tungsten labelling. The incorporation of tungsten into formate dehydrogenase containing fractions and a possible tungsten-binding-storage protein was independent of the presence of excess molydate pointing to a genuine role for tungstate in these bacteria.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00463491
