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8a0w is a 4 chain structure with sequence from Vibrio cholerae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
HIGA2_VIBCH Antitoxin component of a toxin-antitoxin (TA) module that counteracts the effect of the HigB-2 toxin. Binds to its own promoter and regulates transcription of the higB-2/higA-2 operon.[1]
References
↑ Christensen-Dalsgaard M, Gerdes K. Two higBA loci in the Vibrio cholerae superintegron encode mRNA cleaving enzymes and can stabilize plasmids. Mol Microbiol. 2006 Oct;62(2):397-411. PMID:17020579 doi:http://dx.doi.org/10.1111/j.1365-2958.2006.05385.x