>3nps_B mol:protein length:226 S4 FAB HEAVY CHAIN
EVQLVQSGAEVKKPGSSVKVSCKASGGTFSSYAISWVRQAGQGLEWMGGIIPIFGTANYAQKFQGRVTITADESTSTAYMELSSLRSEDTAVYYCARTFHIRRYRSGYYDKMDHWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLESSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPK