>gi|29169569|gb|AAO66446.1|SHV-57| class A extended-spectrum beta-lactamase SHV-57 MRYIRLCIISLLATLPLAVHASPQPLEQIKLSESQLSGRVGMIEMDLASGRTLTAWRADERFPMMSTFKV VLCGAVLARVDAGDEQLERKIHYRQQDLVDYSPVSEKHLADGMTVGELCAAAITMSDNSAANLLLATVGG PAGLTAFLRQIGDNVTRLDRWETERNEALPGDARDTTTPASMAATLRKLLTSQRLSARSQRQLLQWMVDD RVAGPLIRSVLPAGWFIADKTGAGERGARGIVALLGPNNKAERIVVIYLRDTPASMAERNQQIAGIGAAL IEHWQR