TRH encodes the human gene, Thyrotropin-releasing hormone. It may also be known as: Pro-thyrotropin-releasing hormone; Prothyroliberin; Pro-TRH; TRF. The encoded protein has an amino acid length of 242 and a mass of 27.4 kDa. TRH is a member of the TRH family. Homologs of this gene exist in other organisms, including: Frog.