>4lex_H mol:protein length:217 FAB LIGHT CHAIN
EVQLVESGPGLVKPSETLSLSCTVSGDSITSGFWNWIRQPPGKGLEWIGYIGFSGSTYYNPSLKSRVTISRDTSKNQYSLKLSSVTAADTAVYYCASVDNSAALDYWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEP