(CDS pCT_066) within the sequence, which shares homology with genes found in only 4 closely related plasmids (pO26vir; pO113, TP113, and pSERB1) and has limited identity to homologue SigB in Yersinia frederiksenii.
Most of Afghanistan has a subarctic mountain climate with dry and cold winters, except for the lowlands, which have arid and semiarid climates.
At 652,230 km2 (251,830 sq mi), Afghanistan is the world's 41st largest country, slightly bigger than France and smaller than Burma, about the size of Texas in the United States. It borders Pakistan in the south and east; Iran in the west; Turkmenistan, Uzbekistan, and Tajikistan in the north; and China in the far east.