Research Studies
Main
TEM
SHV
OXA ESBL
Others
QNR
OXA Extended-Spectrum ß-Lactamases (Incomplete)
B-Lactamase
Alternate Name
Amino acid at position
5
20
58
76
110
127
146
149
164
165
167
169
184
241
258
272
pI
References
OXA-10 (parent)
PSE-2
I
G
D
N
T
A
N
W
L
G
Y
E
S
E
6.1
1
OXA-11
S
D
6.4
2
OXA-14
D
6.2
3
OXA-16
T
D
6.2
5
OXA-17
S
6.1
9
OXA-19
T
S
N
S
D
F
G
N
A
7.5
8
OXA-28
T
S
N
S
G
F
G
N
A
8.1
11
OXA-35
T
S
N
S
F
G
N
A
8
14
OXA-142
S
D
6.3
16
OXA-145
T
S
N
S
del
W
F
G
N
A
8.7
16
OXA-147
T
S
N
S
L
F
G
N
A
8.0
17
OXA-2 (parent)
N
D
W
G
L
7.7
6
OXA-15
G
8
7
OXA-32
I
9.0
15
OXA-34
C
8.9
16
OXA-36
Y
9.2
16
OXA-141
S
9.1
16
OXA-161
D
18
OXA-226
R
19
The OXA enzyme numbering follows the DBL system of Couture, F., J. Lachapelle, and R. C. Levesque. 1992. Phylogeny of LCR-1 and OXA-5 with class A and class D ß-lactamases. Mol. Microbiol. 6:1693-1705.