Drosophila alcohol dehydrogenase and its subunits were examined for their physical characteristics. The intact enzyme was shown to have a molecular weight of approximately 60,000. The smallest apparent subunit was obtained by dissociating the enzyme with sodium dodecylsulfate and the molecular weight obtained was 7,500. Evidence for three partially dissociated forms was obtained; the subunits o...

The structural properties of carbohydrate metabolism are being studied. The present contribution focuses mainly on those processes involving the transfer of carbon fragments among sugars. It is shown how enzymatic activities fix the way the system self-organizes stoichiometrically at the steady state. It is proven that there exists a specific correspondence between the set of all possible enzym...

The inner histone complex, extracted from chicken erythrocyte chromatin in 2 M NaCL AT pH 7.4, has been characterized by sedimentation equilibrium and sedimentation velocity. High speed sedimentation equilibrium studies indicate that in 2 M NaCl the inner histones are a weakly associating system with contributions from species ranging in molecular weight from dimer to octamer. The appearance of...

in this paper, several xed point theorems for t-contraction of two maps on cone metric spaces under normality condition are proved. obtained results extend and generalize well-known comparable results in the literature.

Several geological features, including sedimentary cone-in-cone structures and percussion marks, may resemble impact-generated shatter cones. Especially inexperienced workers may mistake such features for impact deformation. In 1997, our group investigated an alleged occurrence of shatter cones in the Hamada area of southeastern Morocco and found that these are actually cone-in-cone structures,...