Provided below are ELISA kits targeting RNA terminal phosphate cyclase like 1, a human protein encoded by RCL1. This protein is 373 amino acids long, with a mass of 40.8 kDa, and is a member of the RNA 3'-terminal cyclase family, Type 2 subfamily. 2 isoforms have been identified. This is reported to be a nuclear protein. Other alias names for this protein include: RNA 3'-terminal phosphate cyclase-like protein, RNA cyclase homolog, RNAC, and RPCL1.