>8tnh_J mol:protein length:125 CD4-binding site nanobody G36QVQLQESGGGSVQPGGSLRLSCAVSGLDVESVTIGWIRQAPGKEREEVGCISGNFDQTYYVDSVKGRFTISRVNEENTVYLQMDNLKPEDTATYYCVTDRQFYCALHRLPVSQYRGQGTQVTVSS