Halococcus hamelinensis

Halococcus hamelinensis is a halophilic archaeon isolated from the stromatolites in Australia. These living stromatolites are exposed to extreme conditions of salinity, desiccation and UV radiation.^[3] H. hamelinensis is able to survive high UVC radiation doses due to the presence of the bacteria-like nucleotide excision repair genes uvrA, uvrB and uvrC (that encode the UvrABC endonuclease) as well as the photolyase phr2 gene.^[3] The uvrA, uvrB and uvrC genes are upregulated upon UVC irradiation.^[3]

Halococcus hamelinensis
Scientific classification
Domain:	Archaea
Kingdom:	Methanobacteriati
Phylum:	Halobacteriota
Class:	Halobacteria
Order:	Halobacteriales
Family:	Halococcaceae
Genus:	Halococcus
Species:	H. hamelinensis
Binomial name
Halococcus hamelinensis Goh et al. 2006[1]
Synonyms
Halococcus hamelinii (not validly published)[2]