FIG 2.

Gene organization within potassium transporter (A) and pH homeostasis (B) gene clusters. Arrows indicate the relative lengths and directions of ORFs. Values inside the arrows indicate synteny E values. Values above the arrows indicate the gene name. (A) kdpABC, potassium-transporting ATPase gene; kdpD, signal transduction histidine kinase gene; PAC/PAS, PAS/PAC sensor histidine kinase gene; 1, gene for protein of unknown function; 2, signal transduction response regulator gene; 3, peptidase gene. (B) mntH, magnesium/divalent cation transporter gene; cam, carbonic anhydrase gene; uspA, universal stress protein gene; mgtA, magnesium transporting P-type ATPase gene; alsD, putative alpha-acetolactate decarboxylase gene; 1, phosphoribosyltransferase-like protein gene; 2, gene for conserved protein of unknown function; 3, Val tRNA gene; 4, adenylate/guanylate cyclase sensor protein gene; 5, gene for protein of unknown function; 6, response regulator receiver protein gene; 7, secreted copper domain-containing protein gene; 8, putative adenylate cyclase gene; 9, putative transposase gene.