>4i3s_H mol:protein length:228 Heavy chain of VRC-PG04 Fab
QVQLVQSGSGVKKPGASVRVSCWTSEDIFERTELIHWVRQAPGQGLEWIGWVKTVTGAVNFGSPDFRQRVSLTRDRDLFTAHMDIRGLTQGDTATYFCARQKFYTGGQGWYFDLWGRGTLIVVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSC