HEADSC 2n9a SEQCRD A S SER SER 1 1 H H 0 SEQCRD A L LEU LEU 2 2 H H 0 SEQCRD A L LEU LEU 3 3 H H 0 SEQCRD A S SER SER 4 4 H H 0 SEQCRD A L LEU LEU 5 5 H H 0 SEQCRD A I ILE ILE 6 6 H H 0 SEQCRD A R ARG ARG 7 7 H H 0 SEQCRD A K LYS LYS 8 8 H H 0 SEQCRD A L LEU LEU 9 9 H H 0 SEQCRD A I ILE ILE 10 10 H H 0 SEQCRD A T THR THR 11 11 C C 0 SEQCRD A X NH2 NH2 12 12 C C 0 PARAME method NMR PARAME resolution NA PARAME R-factor NA PARAME FreeR-factor NA