Predictive Power (image) Harvard Medical School Caption Studying related proteins, researchers identified pairs of amino acid residues (left) that seemed to change in lockstep in the evolutionary record. These co-varying pairs indicated points on protein (middle) likely to be in contact after folding, giving researchers enough clues to create a computational model of the protein's three-dimensional structure (right). Credit Terry Helms/Memorial Sloan-Kettering Cancer Center Usage Restrictions Image may only be used with appropriate credit 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.