hydroxysteroid (17-beta) dehydrogenase 12. 2.376. 1415965_at. Scd1. stearoyl-Coenzyme A desaturase 1. 6.494. ... type I), mixed oxidative/glycolytic fast-twitch (type IIa) and glycolytic fast-twitch (type IIb) myofibers (Fluck et al., Rev. ... Type I (slow oxidative) fibers are darkly stained. FIG. 2B is a bar graph showing the percentage of type I fibers (as a ... hemoglobin, beta adult minor chain,hemoglobin Y, beta-. Hbb-b2,Hbb-y. 1.626. 1.503. ...