Table 1.

Nucleotide substitutions inbla TEM-1B, bla TEM-2, and IRT-encoding genes in comparison with the nucleotides ofbla TEM-1A

GeneNucleotide position (amino acid codon)aReference
32  175  226 (6)317 (39)346 (48)407 (69)409 (69)436 (78)604 (134)682 (160)695 (165)747 (182)925 (242)929 (244)1020 (275)1022 (276)
bla TEM-1A CACCAAGCGTTTGCGA 34
Sequenced genes
bla TEM-1B GTTT 15
bla TEM-2 TAGTCA 15
bla TEM-30 bla IRT-2 GTCAA 4
bla TEM-32 bla IRT-3 AC 6
bla TEM-35 bla IRT-4 TGCTG 31
Oligotyped genes
bla TEM-33 bla IRT-5 C 16
bla TEM-34 bla IRT-6 G 16
bla TEM-36 bla IRT-7 GG 16
bla TEM-37 bla IRT-8 AG 16
bla TEM-38 bla IRT-9 GT 16
bla TEM-39 bla IRT-10 CCG 16
  • a Nucleotide positions (34) and amino acid codons (2) are from previously published data. Fragment 1 is from positions −7 to 382, fragment 2 is from positions 301 to 726, and fragment 3 is from positions 652 to 1069.