ISSN:
1432-072X
Keywords:
Myxobacteria
;
Myxobacter AL-1
;
Enzymes
;
Cytoplasmic membranes
;
Outer membranes
;
Isopycnic sedimentations
;
Metrizamide
;
Cell cycle
;
Step-enzymes
;
Peak-enzymes
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The properties of seven enzymes were studied in extracts from Myxobacter AL-1. The enzymes were isocitrate dehydrogenase (E.C. 1.1.1.42), succinate dehydrogenase (E.C. 1.3.99.1), alkaline phosphatase (E.C. 3.1.3.1), α-glucosidase (E.C. 3.2.1.20), β-glucosidase (E.C. 3.2.1.21), β-galactosidase (E.C. 3.2.1.23), and N-acetyl-glucosaminidase (E.C. 3.2.1.30). Four of these enzymes: isocitrate dehydrogenase, α-glucosidase, β-glucosidase, and β-galactosidase are cytosolic enzymes. Succinate dehydrogenase was found to be located on the cytoplasmic membrane system, whereas alkaline phosphatase and N-acetyl-glucosaminidase were considered as enzymes which bind the outer membranes resp. the cell wall. During the cell cycle, all enzymes have a pattern of discontinuous activity increase. Succinate dehydrogenase and isocitrate dehydrogenase exhibit a stepwise increase of activity, whereas the other enzymes follow the pattern of a peak enzyme.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00429624
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