>1x43_A mol:protein length:81 SH3 domain GRB2-like protein B1 GSSGSSGLNDLKESSNNRKARVLYDYDAANSTELSLLADEVITVFSVVGMDSDWLMGER GNQKGKVPITYLELLNSGPSSG >1x43_A mol:protein length:81 SH3 domain GRB2-like protein B1 GSSGSSGLNDLKESSNNRKARVLYDYDAANSTELSLLADEVITVFSVVGMDSDWLMGER GNQKGKVPITYLELLNSGPSSG