Table 6.

β-Lactamases produced by 74 P. mirabilisstrains presenting an ESBL phenotype

pI (n)ASPCR position 39ASPCR position 104ASPCR position 238β-Lactamase(s)
GlnLysGluLysGlySer
6.3 (71)+++TEM-3
6.3 + 5.4 (1)++++++TEM-3 + TEM-1
6.3 + 5.6 (1)+++++TEM-3 + TEM-2
6.0 (1)+++TEM-66