Tic100 is a nuclear encoded protein thats 871 amino acids long. The 871 amino acids collectively weigh slightly less than 100 thousand daltons, and since the mature protein probably doesnt lose any amino acids when itself imported into the chloroplast (it has no cleavable transit peptide), it was named Tic100. Tic100 is found at the edges of the 1 million dalton complex on the side that faces the chloroplast intermembrane space.