insulin (ox), 8(A)-L-threonine-10(A)-L-isoleucine-23(B)-deglycine-24(B)-de-L-phenylalanine-25(B)-de-L-phenylalanine-26(B)-de-L-tyrosine-27(B)-de-L-threonine-28(B)-de-L-proline-29(B)-de-L-lysine-30(B)-de-L-alanine-