HEADSC 2n9c SEQCRD A M MET MET 1 1 C C 0 SEQCRD A T THR THR 2 2 C C 0 SEQCRD A E GLU GLU 3 3 C C 0 SEQCRD A Y TYR TYR 4 4 C C 0 SEQCRD A K LYS LYS 5 5 C C 0 SEQCRD A L LEU LEU 6 6 C C 0 SEQCRD A V VAL VAL 7 7 C C 0 SEQCRD A V VAL VAL 8 8 C C 0 SEQCRD A V VAL VAL 9 9 C C 0 SEQCRD A G GLY GLY 10 10 C C 0 SEQCRD A A ALA ALA 11 11 C C 0 SEQCRD A G GLY GLY 12 12 C C 0 SEQCRD A G GLY GLY 13 13 C C 0 SEQCRD A V VAL VAL 14 14 C C 0 SEQCRD A G GLY GLY 15 15 C C 0 SEQCRD A K LYS LYS 16 16 H H 0 SEQCRD A S SER SER 17 17 H H 0 SEQCRD A H HIS HIS 18 18 H H 0 SEQCRD A V VAL VAL 19 19 H H 0 SEQCRD A W TRP TRP 20 20 H H 0 PARAME method NMR PARAME resolution NA PARAME R-factor NA PARAME FreeR-factor NA