THOC2 is a symbol for the gene, THO complex 2, in humans. Other names include: THO complex subunit 2; hTREX120; Tho2; CXorf3; dJ506G2.1. The encoded protein has an amino acid length of 1593 and a mass of 182.8 kDa. Other isoforms may exist. THOC2 is a member of the THOC2 family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.