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Isozymes

Biology IsozymeJawless vertebrates

Isozymes (also known as isoenzymes) are enzymes that differ in amino acid sequence but catalyze the same chemical reaction.

 


Isozymes, (or isoenzymes) are isoforms (closely related variants) of enzymes. In many cases, they are coded for by homologous genes that have diverged over time.

Isozymes Enzymes in an organism that catalyze the same reaction but differ in structure; these differences may range from one to several amino acid residues. Also called isoenzymes.

Isoform Multiple molecular forms of a given protein (or iso enzymes or isozymes if they are enzymes). Isoforms can usually be separated by electrophoresis or some other separation technique.

Enzymes that differ in amino acid sequence yet catalyze the same reaction. Isozymes differ in biochemichal properties(such as electropheric mobility) and kinetic properties(Km, rate constant etc.). They are encoded by different genetic loci.

A different electrophoretic form of the same multi-subunit enzyme. Unlike allozymes isozymes are due to differing subunit configurations rather than allelic differences.
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See also: Isozyme, Enzyme, Site, Amino acid, Action

Biology IsozymeJawless vertebrates

 
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