2hap is a 4 chain structure with sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
HAP1_YEASX Regulation of oxygen dependent gene expression. It modulates the expression of Iso-1 (CYP1) and Iso-2 (CYP3) cytochrome c. In response to heme, promotes transcription of genes encoding functions required for respiration, controlling oxidative damage and repression of anaerobic genes. Binds to the sequence 5'-CGGNNNTNNCGG-3'. Is non-functional in terms of iso-1 cytochrome c expression in strain S288c and its derivatives.[1][2][3][4]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
References
↑Gaisne M, Bécam AM, Verdière J, Herbert CJ. A 'natural' mutation in Saccharomyces cerevisiae strains derived from S288c affects the complex regulatory gene HAP1 (CYP1). Curr Genet. 1999 Oct;36(4):195-200. PMID:10541856 doi:10.1007/s002940050490
↑Hon T, Lee HC, Hach A, Johnson JL, Craig EA, Erdjument-Bromage H, Tempst P, Zhang L. The Hsp70-Ydj1 molecular chaperone represses the activity of the heme activator protein Hap1 in the absence of heme. Mol Cell Biol. 2001 Dec;21(23):7923-32. PMID:11689685 doi:10.1128/MCB.21.23.7923-7932.2001
↑Creusot F, Verdière J, Gaisne M, Slonimski PP. CYP1 (HAP1) regulator of oxygen-dependent gene expression in yeast. I. Overall organization of the protein sequence displays several novel structural domains. J Mol Biol. 1988 Nov 20;204(2):263-76. PMID:2851658 doi:10.1016/0022-2836(88)90574-8
↑Zitomer RS, Carrico P, Deckert J. Regulation of hypoxic gene expression in yeast. Kidney Int. 1997 Feb;51(2):507-13. PMID:9027731 doi:10.1038/ki.1997.71
