Protein Subfamilies (image) California Institute of Technology Share Print E-Mail Caption The 21-member Dpr and 9-member DIP subfamilies of Ig proteins interact specifically with one another. The molecular basis for their interactions lies in their hydrophobic interfaces and these interactions control nervous system development and synaptic connectivity at the neuromuscular junction (NMJ) and the optic lobe. Credit Robert Carrillo, Kaushiki Menon, and Engin Ozkan Usage Restrictions With appropriate credits Share Print E-Mail 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.