INHERITANCE OF ISOZYMES: DESCRIPTION OF NEW LOCI IN ONIONS ISOZYMES

Inheritance and linkage of isozymes in grasspea

Introduction Although isozyme markers may not be abundant in a species, their codominant inheritance has made them useful in certain situations. In linkage mapping experiments, codominant markers are often preferred over dominant markers as they carry more information on the recombination fraction than dominant markers in the F2 segregating population . An inheritance study will provide allelic...

Plasma alkaline phosphatase isozymes: isolation and characterization of isozymes.

I. The two isozymes of alkaline phosphatase (orthophosphoric monoester phosphohydrolase, EC 3.1.3.1) detectable in human blood group O plasma have been separated from one another and isolated in a high state of purity. With p-nitrophenyl phosphate as substrate, the catalytic properties of the two isozymes appear to be the same with respect to pH optimum, lO.5; Kin, o.35-o.4 mM, and activity in ...

Lactic Dehydrogenase Isozymes

Lactic dehydrogenase isozymes (I-lactate, NAD oxidoreductase), which are key enzymes in glycolysis, have been the object of extensive investigation. Five LDH isozymes have been found. The five isozymes represent the five possible tetramaric combinations of the two polypeptides. Thus, the five tetramers range from LDH-l( H4 ) to LDH -5 ( M4 ), the three hybrid enzymes being H3MI, H2 M2, and H j ...

The Mysterious World of Isozymes

Strictly defined, isozymes are similar forms of the same enzyme that share identical functions. There are different types of isozymes that are classified according to their origin isozymes may be encoded by several different loci (which determine subunit structure), or they may be determined by a single locus with several different alleles. If the latter, isozymes are referred to as "allozymes"...

Isozymes: Methods and Applications