HEADSC 2lwt SEQCRD A G GLY GLY 1 1 C C 0 SEQCRD A R ARG ARG 2 2 C C 0 SEQCRD A Y TYR TYR 3 3 C C 0 SEQCRD A R ARG ARG 4 4 E E 0 SEQCRD A R ARG ARG 5 5 E E 0 SEQCRD A C CYS CYS 6 6 E E 0 SEQCRD A I ILE ILE 7 7 E E 0 SEQCRD A P PRO PRO 8 8 C C 0 SEQCRD A G GLY GLY 9 9 C C 0 SEQCRD A M MET MET 10 10 C C 0 SEQCRD A F PHE PHE 11 11 C C 0 SEQCRD A R ARG ARG 12 12 C C 0 SEQCRD A A ALA ALA 13 13 C C 0 SEQCRD A Y TYR TYR 14 14 E E 0 SEQCRD A C CYS CYS 15 15 E E 0 SEQCRD A Y TYR TYR 16 16 E E 0 SEQCRD A M MET MET 17 17 E E 0 SEQCRD A D ASP ASP 18 18 C C 0 PARAME method NMR PARAME resolution NA PARAME R-factor NA PARAME FreeR-factor NA