HEADSC 1ans SEQCRD A R ARG ARG 1 1 T T 0 SEQCRD A S SER SER 2 2 T T 0 SEQCRD A C CYS CYS 3 3 T T 0 SEQCRD A C CYS CYS 4 4 T T 0 SEQCRD A P PRO PRO 5 5 T T 0 SEQCRD A C CYS CYS 6 6 T T 0 SEQCRD A Y TYR TYR 7 7 T T 0 SEQCRD A W TRP TRP 8 8 T T 0 SEQCRD A G GLY GLY 9 9 T T 0 SEQCRD A G GLY GLY 10 10 T T 0 SEQCRD A C CYS CYS 11 11 T T 0 SEQCRD A P PRO PRO 12 12 T T 0 SEQCRD A W TRP TRP 13 13 T T 0 SEQCRD A G GLY GLY 14 14 T T 0 SEQCRD A Q GLN GLN 15 15 T T 0 SEQCRD A N ASN ASN 16 16 T T 0 SEQCRD A C CYS CYS 17 17 T T 0 SEQCRD A Y TYR TYR 18 18 C C 0 SEQCRD A P PRO PRO 19 19 C C 0 SEQCRD A E GLU GLU 20 20 C C 0 SEQCRD A G GLY GLY 21 21 C C 0 SEQCRD A C CYS CYS 22 22 C C 0 SEQCRD A S SER SER 23 23 C C 0 SEQCRD A G GLY GLY 24 24 C C 0 SEQCRD A P PRO PRO 25 25 C C 0 SEQCRD A K LYS LYS 26 26 C C 0 SEQCRD A V VAL VAL 27 27 C C 0 PARAME method NMR PARAME resolution NA PARAME R-factor NA PARAME FreeR-factor NA