Now showing items 131-135 of 135
Structure of tropomyosin at 7A resolution
The crystal structure of tropomyosin has been determined by X-ray diffraction analysis at 7A resolution. Tropomyosin is a 400A-long muscle regulatory protein that consists of two parallel 33,000 Dalton alpha helices wound ...
Purification and studies of two butanol(ethanol) dehydrogenases and the effects of rifampicin and chloramphenicol on other enzymes important in the production of butyrate and butanol in Clostridium acetobutylicum ATCC 824
Two NADH dependent butanol(ethanol) dehydrogenases from Clostridium acetobutylicum have been purified to near homogeneity. Either of these two dehydrogenases could be part of the pathway for the production of butanola and ...
Dietary nucleotide restriction and supplementation in mice: Influence on lymphocyte function, maturation and nucleotide metabolism
An observed phenomenon of cell mediated immunosuppression in mice caused by the lack of preformed purine and pyrimidines in the diet was characterized and the mechanism of action explored utilizing three different approaches. ...
A comparative study of the membrane-active beta-sheet peptide protegrin with the alpha-helical peptide alamethicin
The interactions of the membrane-active peptides alamethicin and protegrin with lipid bilayers are studied. The influence of the bilayer composition on the orientation transition of alamethicin is studied using oriented ...
Examination of the C-terminal assembly motif in lactose repressor
Assembly requirements for lactose repressor protein have been examined by substitutions in the leucine heptad repeat (LHR) tetramerization domain. All a and d positions of the LHR were substituted with Ile (II) or a positions ...