>4USH_1|Chains A, B, C|NITROGEN REGULATORY PROTEIN PII|CHLAMYDOMONAS REINHARDTII (3055) MELESIQCDLSAFPGVKFFRIEAIFRPWRLPFVIDTLSKYGIRGLTNTPVKGVGVQGGSRERYAGTEFGPSNLVDKEKLDIVVSRAQVDAVVRLVAASAYTGEIGDGKIFVHPVAEVVRIRTAETGLEAEKMEGGMEDMMKKKKSAWSHPQFEK