1k6x

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Template:STRUCTURE 1k6x

Contents

Crystal structure of Nmra, a negative transcriptional regulator in complex with NAD at 1.5 A resolution (Trigonal form)

Template:ABSTRACT PUBMED 11726498

Function

[NMRA_EMENI] May be a redox sensor protein. Has much higher affinity for NAD(P) than for NAD(P)H. Has similar affinity for NAD and NADP. Negative transcriptional regulator involved in the post-transcriptional modulation of the GATA-type transcription factor areA, forming part of a system controlling nitrogen metabolite repression (By similarity). Interferes with the interaction between areA and target DNA. Overexpression leads to areA inhibition.[1] [2] [3] [4]

About this Structure

1k6x is a 1 chain structure with sequence from Emericella nidulans. Full crystallographic information is available from OCA.

Reference

  • Stammers DK, Ren J, Leslie K, Nichols CE, Lamb HK, Cocklin S, Dodds A, Hawkins AR. The structure of the negative transcriptional regulator NmrA reveals a structural superfamily which includes the short-chain dehydrogenase/reductases. EMBO J. 2001 Dec 3;20(23):6619-26. PMID:11726498 doi:10.1093/emboj/20.23.6619
  1. ↑ Wong KH, Hynes MJ, Todd RB, Davis MA. Transcriptional control of nmrA by the bZIP transcription factor MeaB reveals a new level of nitrogen regulation in Aspergillus nidulans. Mol Microbiol. 2007 Oct;66(2):534-51. Epub 2007 Sep 10. PMID:17854403 doi:http://dx.doi.org/10.1111/j.1365-2958.2007.05940.x
  2. ↑ Lamb HK, Leslie K, Dodds AL, Nutley M, Cooper A, Johnson C, Thompson P, Stammers DK, Hawkins AR. The negative transcriptional regulator NmrA discriminates between oxidized and reduced dinucleotides. J Biol Chem. 2003 Aug 22;278(34):32107-14. Epub 2003 May 22. PMID:12764138 doi:10.1074/jbc.M304104200
  3. ↑ Lamb HK, Ren J, Park A, Johnson C, Leslie K, Cocklin S, Thompson P, Mee C, Cooper A, Stammers DK, Hawkins AR. Modulation of the ligand binding properties of the transcription repressor NmrA by GATA-containing DNA and site-directed mutagenesis. Protein Sci. 2004 Dec;13(12):3127-38. Epub 2004 Nov 10. PMID:15537757 doi:10.1110/ps.04958904
  4. ↑ Kotaka M, Johnson C, Lamb HK, Hawkins AR, Ren J, Stammers DK. Structural analysis of the recognition of the negative regulator NmrA and DNA by the zinc finger from the GATA-type transcription factor AreA. J Mol Biol. 2008 Aug 29;381(2):373-82. Epub 2008 Jun 5. PMID:18602114 doi:http://dx.doi.org/10.1016/j.jmb.2008.05.077

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