HLA-G1 and HLA-G2 Proteins (IMAGE) Hokkaido University Caption This is a comparison of a HLA-G1 protein (left) and a HLA-G2 protein (right), showing significant structural difference. The HLA-G2 protein shown here is in a pair form called homodimer. Credit Kuroki K. et al., <em>The Journal of Immunology</em>, March 27, 2017 Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.