HEADSC 2nb6 SEQCRD A G GLY GLY 1 1 C C 0 SEQCRD A C CYS CYS 2 2 E E 0 SEQCRD A Y TYR TYR 3 3 E E 0 SEQCRD A P PRO PRO 4 4 E E 0 SEQCRD A V VAL VAL 5 5 C C 0 SEQCRD A P PRO PRO 6 6 C C 0 SEQCRD A Y TYR TYR 7 7 C C 0 SEQCRD A P PRO PRO 8 8 C C 0 SEQCRD A P PRO PRO 9 9 C C 0 SEQCRD A F PHE PHE 10 10 C C 0 SEQCRD A F PHE PHE 11 11 E E 0 SEQCRD A T THR THR 12 12 E E 0 SEQCRD A C CYS CYS 13 13 E E 0 SEQCRD A D ASP ASP 14 14 C C 0 SEQCRD A P PRO PRO 15 15 C C 0 SEQCRD A N ASN ASN 16 16 C C 0 PARAME method NMR PARAME resolution NA PARAME R-factor NA PARAME FreeR-factor NA