Table 1.

Strains and plasmid vectors used in this work.

Strain/vector	Description	Reference
S. solfataricus GΘ	MT4 Derivative	Cannio et al.(1998)
S. solfataricusS443	Novel Sulfolobus isolate	Unpublished data
E.coli NovaBlue®	Expression strain	Novagen, Inc.
pAJC97	SSV1 with TOPO PCR Blunt II	Clore and Stedman (2006)
pAJC97-ΔVP2	pAJC97 lacking VP2 gene	This Work
pAJC97-Δd244	pAJC97 lacking ORF d244	This Work
pAJC97-Δb129	pAJC97 lacking ORF b129	This Work