TABLE 1.

Percent homology to CMY-2 and anti-CMY-2 antibody recognition^a

β-Lactamase	% DNA homology	Recognition by antibody
CMY-2	100	+
C. freundii AmpC	94	+
P99	74	+
ACT-1	74	+
E. cloacae AmpC	71	+
M. morganii AmpC	54	+
PC 1	45	+
K-1	29	−
SHV-1	27	−
TEM-1	27	−
OXA-1	26	−

^aHomology percentages were based on DNA sequence comparisons performed by using DNASIS. +, recognition; −, no recognition.