Provided below are ELISA kits targeting basic helix-loop-helix family member e41, a human protein encoded by BHLHE41. This protein is 482 amino acids long with a reported mass of 50.5 kDa. This is reported to be a nuclear protein. Other alias names for this protein include: class E basic helix-loop-helix protein 41, basic helix-loop-helix domain containing class B 3, differentially expressed in chondrocytes protein 2, enhancer-of-split and hairy-related protein 1, 43801, SHARP1, and hDEC2.