HEADSC 1wct SEQCRD A X CGU CGU 1 1 T T 0 SEQCRD A C CYS CYS 2 2 T T 0 SEQCRD A C CYS CYS 3 3 T T 0 SEQCRD A X CGU CGU 4 4 T T 0 SEQCRD A D ASP ASP 5 5 T T 0 SEQCRD A G GLY GLY 6 6 T T 0 SEQCRD A X BTR BTR 7 7 C C 0 SEQCRD A C CYS CYS 8 8 C C 0 SEQCRD A C CYS CYS 9 9 C C 0 SEQCRD A X GTH GTH 10 10 C C 0 SEQCRD A A ALA ALA 11 11 C C 0 SEQCRD A A ALA ALA 12 12 C C 0 SEQCRD A X HYP HYP 13 13 C C 0 PARAME method NMR PARAME resolution NA PARAME R-factor NA PARAME FreeR-factor NA