Ttc39a encodes the human gene, Tetratricopeptide repeat domain 39A. It may also be known as: Tetratricopeptide repeat protein 39A; Differentially expressed in MCF7 with estradiol protein 6; DEME-6; TPR repeat protein 39A; C1orf34. The encoded protein has an amino acid length of 613 and a mass of 69.8 kDa. Other isoforms may exist. Ttc39a is a member of the TTC39 family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.