1R62:
reference: Crystal Structure of the C-terminal Domain of the Two-Component System Transmitter Protein Nitrogen Regulator II (NRII; NtrB), Regulator of Nitrogen Assimilation in Escherichia coli(,)., Song Y, Peisach D, Pioszak AA, Xu Z, Ninfa AJ, Biochemistry 2004 Jun 1;43(21):6670-8. PMID: 15157101

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