HEADSC 2n4n SEQCRD A X ACE ACE 1 0 C C 0 SEQCRD A E GLU GLU 2 1 C C 0 SEQCRD A R ARG ARG 3 2 C C 0 SEQCRD A F PHE PHE 4 3 C C 0 SEQCRD A Y TYR TYR 5 4 C C 0 SEQCRD A E GLU GLU 6 5 C C 0 SEQCRD A K LYS LYS 7 6 C C 0 SEQCRD A X 4G6 4G6 8 7 C C 0 SEQCRD A X DPR PRO 9 8 C C 0 SEQCRD A V VAL VAL 10 9 C C 0 SEQCRD A Q GLN GLN 11 10 C C 0 SEQCRD A K LYS LYS 12 11 C C 0 SEQCRD A F PHE PHE 13 12 C C 0 SEQCRD A I ILE ILE 14 13 C C 0 SEQCRD A R ARG ARG 15 14 C C 0 SEQCRD A V VAL VAL 16 15 C C 0 SEQCRD A X 4FU 4FU 17 16 C C 0 SEQCRD A G GLY GLY 18 17 C C 0 SEQCRD A V VAL VAL 19 18 C C 0 SEQCRD A T THR THR 20 19 C C 0 SEQCRD A I ILE ILE 21 20 C C 0 SEQCRD A R ARG ARG 22 21 C C 0 SEQCRD A E GLU GLU 23 22 C C 0 SEQCRD A K LYS LYS 24 23 C C 0 SEQCRD A X NH2 LYS 25 23 C C 0 PARAME method NMR PARAME resolution NA PARAME R-factor NA PARAME FreeR-factor NA