A sperm-specific enolase.
An unusual enolase isoenzyme, ENO S, was found in human, ram and mouse spermatozoa. This isoenzyme is unique to spermatozoa and distinguished from the somatic enolases ENO 1, ENO 2 and ENO 3 by electrophoretic mobility, high thermostability and ability to undergo structural alteration at high temperatures. The pattern of expression of ENO S during sperm differentiation suggests that this isoenzyme is synthesized relatively late in the presence of a haploid genome.
D000818:Animals; D004592:Electrophoresis, Starch Gel; D006358:Hot Temperature; D006801:Humans; D007527:Isoenzymes / Q000032:analysis*; D008297:Male; D051379:Mice; D010751:Phosphopyruvate Hydratase / Q000032:analysis*; D012756:Sheep; D013079:Sperm Maturation; D013094:Spermatozoa / Q000201:enzymology*
D007527:Isoenzymes; D010751:Phosphopyruvate Hydratase