>4xrc_H mol:protein length:227 H5.3 Fab heavy chain
QVQLQESGPGLVKPSGTVSLTCAVSGGSISSSYWWSWVRQPPGKGLEWIGEIYHSGNTNYNPSLKSRVTISVDKSKNLFSLKLSSVTAADTAVYYCARVALFDILTGGWFDPWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVELKTPT