Petra Stephan

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Binding of triose-phosphate isomerase (D-glyceraldehyde-3-phosphate ketol-isomerase, EC 5.3.1.1) to muscle myofibrils depends upon the concurrent binding of either fructose-bisphosphate aldolase (EC 4.1.2.13), glyceraldehyde-3-phosphate dehydrogenase (EC 1.2.1.12) or both of these enzymes together. Thus triose-phosphate isomerase does not bind directly to(More)
Perfused rat hearts show a markedly increased binding of phosphofructokinase and fructose-bisphosphate aldolase as a consequence of ischaemia, but little change in binding of pyruvate kinase, lactate dehydrogenase or glyceraldehyde-3-phosphate dehydrogenase. After 10 min ischaemia over one quarter of the phosphofructokinase and three quarters of the(More)
Two types of horizontal cells, H1 and H2, were classified using the Golgi technique on flat mounts of the retina of the frog. Cell type H l possesses rather short, thick dendrites; the diameter of its dendritic field ranges from 40–90 μm. H2-cell displays long and thin dendrites; the diameter of its dendritic field is 70–160 μm. H1-cells possess an axon(More)
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