Nourseothricin-resistant strains transformed with CaNAT1 contain the CaNAT1 sequence. Genomic DNA from untransformed parent strains (a) and from two each of their nourseothricin-resistant transformants (b and c) was slot blotted and probed with a portion of the CaNAT1 open reading frame. The strains were as follows: 1a, SC5314; 1b, JKC406; 1c, JKC336; 2, 3, and 4, C. albicans bloodstream isolates (2a, JKC7; 2b, JKC406; 2c, JKC375; 3a, JKC8; 3b, JKC410; 3c, JKC411; 4a, JKC9; 4b, JKC412; and 4c, JKC413); 5, 6, and 7, C. parapsilosis clinical isolates (5a, JKC355; 5b, JKC414; 5c, JKC415; 6a, JKC357; 6b, JKC416; 6c, JKC417; 7a, JKC358; 7b, JKC418; and 7c, JKC419); 8 and 9, C. lusitaniae clinical isolates (8a, JKC356; 8b, JKC420; 8c, JKC421; 9a, JKC360; 9b, JKC422; and 9c, JKC423); 10, C. glabrata clinical isolate (10a, JKC361; 10b, JKC424; and 10c, JKC425); and 11, C. kefyr clinical isolate (11a, JKC359; 11b, JKC426; and 11c, JKC407).