HEADSC 2nab SEQCRD A G GLY GLY 1 1 C C 0 SEQCRD A A ALA ALA 2 2 C C 0 SEQCRD A M MET MET 3 3 C C 0 SEQCRD A E GLU GLU 4 4 C C 0 SEQCRD A V VAL VAL 5 5 C C 0 SEQCRD A Q GLN GLN 6 6 C C 0 SEQCRD A T THR THR 7 7 C C 0 SEQCRD A S SER SER 8 8 C C 0 SEQCRD A Q GLN GLN 9 9 C C 0 SEQCRD A K LYS LYS 10 10 C C 0 SEQCRD A S SER SER 11 11 C C 0 SEQCRD A Y TYR TYR 12 12 E E 0 SEQCRD A V VAL VAL 13 13 E E 0 SEQCRD A C CYS CYS 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 SEQCRD A C CYS CYS 17 17 C C 0 SEQCRD A G GLY GLY 18 18 C C 0 SEQCRD A K LYS LYS 19 19 C C 0 SEQCRD A I ILE ILE 20 20 E E 0 SEQCRD A F PHE PHE 21 21 E E 0 SEQCRD A R ARG ARG 22 22 C C 0 SEQCRD A W TRP TRP 23 23 H H 0 SEQCRD A R ARG ARG 24 24 H H 0 SEQCRD A V VAL VAL 25 25 H H 0 SEQCRD A N ASN ASN 26 26 H H 0 SEQCRD A F PHE PHE 27 27 H H 0 SEQCRD A I ILE ILE 28 28 H H 0 SEQCRD A R ARG ARG 29 29 H H 0 SEQCRD A H HIS HIS 30 30 H H 0 SEQCRD A L LEU LEU 31 31 H H 0 SEQCRD A R ARG ARG 32 32 H H 0 SEQCRD A S SER SER 33 33 H H 0 SEQCRD A R ARG ARG 34 34 H H 0 SEQCRD A R ARG ARG 35 35 H H 0 SEQCRD A E GLU GLU 36 36 H H 0 SEQCRD A Q GLN GLN 37 37 H H 0 SEQCRD A K LYS LYS 38 38 C C 0 SEQCRD A P PRO PRO 39 39 C C 0 SEQCRD A H HIS HIS 40 40 C C 0 SEQCRD A K LYS LYS 41 41 C C 0 PARAME method NMR PARAME resolution NA PARAME R-factor NA PARAME FreeR-factor NA