| 2XG8: reference: Structural basis for the regulation of NtcA-dependent transcription by proteins PipX and PII., Llacer JL, Espinosa J, Castells MA, Contreras A, Forchhammer K, Rubio V, Proc Natl Acad Sci U S A. 2010 Aug 17. PMID: 20716687 |
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