Multiple forms of alkaline phosphatase isoenzymes of Serratia marcescens. 1990

A R Bhatti, and M K Ijaz, and G R Chaudhry
Department of Biochemistry, University of Sydney, N.S.W., Australia.

Alkaline phosphatase (APase) isoenzymes produced by different strains of Serratia marcescens were examined. Variation of isoenzyme patterns with respect to number and their mobilities in starch gels after electrophoresis were observed. Ten strains gave a 1-isoenzyme pattern with 5 different mobilities; 7 strains gave a 2-isoenzyme pattern with 3 different mobilities; 9 strains gave a 3-isoenzyme pattern with 5 different mobilities; and 3 strains gave a 4-isoenzyme pattern. Three strains synthesized two electrophoretically distinct APases in low phosphate medium. A high concentration of inorganic phosphate induced the synthesis of one of these APase isoenzymes.

UI MeSH Term Description Entries
D007527 Isoenzymes Structurally related forms of an enzyme. Each isoenzyme has the same mechanism and classification, but differs in its chemical, physical, or immunological characteristics. Alloenzyme,Allozyme,Isoenzyme,Isozyme,Isozymes,Alloenzymes,Allozymes
D010710 Phosphates Inorganic salts of phosphoric acid. Inorganic Phosphate,Phosphates, Inorganic,Inorganic Phosphates,Orthophosphate,Phosphate,Phosphate, Inorganic
D004592 Electrophoresis, Starch Gel Electrophoresis in which a starch gel (a mixture of amylose and amylopectin) is used as the diffusion medium. Starch Gel Electrophoresis
D004790 Enzyme Induction An increase in the rate of synthesis of an enzyme due to the presence of an inducer which acts to derepress the gene responsible for enzyme synthesis. Induction, Enzyme
D000469 Alkaline Phosphatase An enzyme that catalyzes the conversion of an orthophosphoric monoester and water to an alcohol and orthophosphate. EC 3.1.3.1.
D012706 Serratia marcescens A species of gram-negative, facultatively anaerobic, rod-shaped bacteria found in soil, water, food, and clinical specimens. It is a prominent opportunistic pathogen for hospitalized patients.

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