ELISA kits for the study of the target, GLb are available in ready-to-use formats. The protein is also known as dicarbonyl and L-xylulose reductase or DCXR. It is a 244-residue protein with a membrane localization. Other alias names for this target include: sperm surface protein P34H, dicarbonyl/L-xylulose reductase, carbonyl reductase II, carbonyl reductase 2, and L-xylulose reductase, and HCR2.