HEADSC 5kwx SEQCRD A C CYS CYS 1 1 C C 0 SEQCRD A S SER SER 2 2 E E 0 SEQCRD A Y TYR TYR 3 3 E E 0 SEQCRD A T THR THR 4 4 E E 0 SEQCRD A C CYS CYS 5 5 E E 0 SEQCRD A X DPR DPR 6 6 C C 0 SEQCRD A P PRO PRO 7 7 C C 0 SEQCRD A Q GLN GLN 8 8 E E 0 SEQCRD A T THR THR 9 9 E E 0 SEQCRD A Y TYR TYR 10 10 E E 0 SEQCRD A T THR THR 11 11 E E 0 SEQCRD A F PHE PHE 12 12 C C 0 SEQCRD A P PRO PRO 13 13 C C 0 SEQCRD A T THR THR 14 14 C C 0 SEQCRD A C CYS CYS 15 15 C C 0 SEQCRD A E GLU GLU 16 16 H H 0 SEQCRD A E GLU GLU 17 17 H H 0 SEQCRD A A ALA ALA 18 18 H H 0 SEQCRD A K LYS LYS 19 19 H H 0 SEQCRD A K LYS LYS 20 20 H H 0 SEQCRD A M MET MET 21 21 C C 0 SEQCRD A K LYS LYS 22 22 C C 0 SEQCRD A K LYS LYS 23 23 C C 0 SEQCRD A R ARG ARG 24 24 C C 0 SEQCRD A C CYS CYS 25 25 C C 0 PARAME method NMR PARAME resolution NA PARAME R-factor NA PARAME FreeR-factor NA