Table 1. Characteristics of sequenced Haloarchaea and the 604 cHOGs included in study.

Haloarchaeon	Genome size (Mbp)	Growth temperature range (oC)	Average proteome MW	Average proteome pI
Halorubrum lacusprofundi	3.7	−2–42	32.27		4.39
Halobacterium sp. NRC-1	2.6	15–50	31.06		4.59
Halorhabdus utahensis	3.1	17–55	31.96		4.40
Haloferax volcanii	4.0	20–49	31.63		4.55
Halalkalicoccus jeotgali	3.7	21–50	31.48		4.57
Halogeometricum borinquense	3.9	22–58	32.18		4.50
Natronomonas pharaonis	2.8	23–56	31.58		4.40
Haloterrigena turkmenica	5.4	23–57	32.43		4.33
Haloquadratum walsbyi	3.2	25–55	33.32		4.61
Halopiger xanaduensis	4.4	28–45	32.54		4.30
Halomicrobium mukohataei	3.3	35–52	31.89		4.39
Natrialba magadii	4.4	37–40*	32.95		4.32
Haloarcula marismortui	4.3	40–50*	32.08		4.40

NOTES: The proteome molecular weight (MW) and isoelectric point (pI) data are averages for the 604 protein families used in amino acid composition analysis. Growth temperature ranges are indicated, except those marked with *,where only the optimal growth temperatures were reported.