Provided below are ELISA kits targeting crystallin beta A4, a human protein encoded by CRYBA4. This protein is 196 amino acids long, with a mass of 22.4 kDa, and is a member of the Beta/gamma-crystallin family. There is a noted implication in Cataract 23, multiple types. Other alias names for this protein include: beta-crystallin A4, beta crystallin A4 chain transcript PS, beta crystallin alpha 4 chain, beta-A4 crystallin, CTRCT23, CYRBA4, and MCOPCT4.