>3L7P_1|Chains A, B, C, D, E, F|Putative nitrogen regulatory protein PII|Streptococcus mutans (1309) GSMKKIEAIIRSDKLEDLKAALVQSGFIKGMTISQVLGFGNQRGYTEYVRGQKITPTLLAKVKVEIVAHDAAVEEMITTISQAVKTGEVGDGKIFVSPVDEIVRIRTGERDGDAI