Specificity: Anti neuron-specific enolase 1 (NSE-P1, ENO1, Enolase 1, 2-Phospho-D-Glycerate Hydrolase, alpha enolase, ay) is an 80 kD protein and one of the five isozymes of enolase, a glycolytic enzyme catalyzing the reaction pathway between 2 phospho glycerate and p.