“…Asterisks (*) indicate identities between all groups, plus signs (+) indicate identities between eubacterial and chloroplast groups, colons (:) indicate well-conserved amino acids (bold letters). Abbreviations: accession numbers and references are: Hma, Halobacterium marismortui J05222, P10970 [28]; Hha, Halobacterium halobium [29]; Ala, Acoh, plasma laidlawii M74771, P29222 [30]; Myc, Mycoplasma-like organism M74770 [31]; Bst, Bacillus stearothermophilus [32]; Tma, Thermotoga maritima Z21677 [33]; Eco, Escheriehia coli [34]; Tth, Thermus thermophilus (present work); Sol, Spinaeia oleracea X13336, P09594 [35]; Nta, Nicotiana tabacum [36]; Msa, Medieago sativa L00667; Mpo, Marehantiapolymorpha -X04465, P06388 [37]; Gte, Gracillaria tenuistipitata M32638, P16634; Egr, Euglenagracilis M37463, P19166 [38]; Zma, Zea mays -Y00329, P06589 [39]. among the majority of the eubacterial and chloroplast sequences are also conserved in archaebacteria.…”