>5vjq_C mol:protein length:213 HyHEL10 heavy chain Fab fragment carrying three mutations; I29F, S52T, Y53FDVQLQESGPSLVKPSQTLSLTCSVTGDSFTSDYWSWIRKFPGNRLEYMGYVTFSGSTYYNPSLKSRISITRDTSKNQYYLDLNSVTTEDTATYYCANWDGDYWGQGTLVTVSAAKTTPPSVYPLAPGSAAQTNSMVTLGCLVKGYFPEPVTVTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVPSSTWPSETVTCNVAHPASSTKVDKKIVPR