Tic214 is another TIC core complex protein, named because it weighs just under 214 kilodaltons. It is 1786 amino acids long and is thought to have six transmembrane domains on its N-terminal end. Tic214 is notable for being coded for by chloroplast DNA, more specifically the first open reading frame ycf1. Tic214 and Tic20 together probably make up the part of the one million dalton TIC complex that spans the entire membrane. Tic20 is buried inside the complex while Tic214 is exposed on both sides of the inner chloroplast membrane.