Beta-lactamase

Plasmid stabilization

• Beta-lactamase gene bla or ampR is used in molecular cloning as a selection marker, since cells bearing plasmids encoding the gene are resistant to ampicillin and carbenicillin.

NITROCEFIN (GLAXO RESEARCH 87/312)
Code: SR0112
For the rapid chromogenic detection of beta-lactamase activity.
Oxiod Inc. page on Nitrocefin

References

1. ANDERSON ES and DATTA N. RESISTANCE TO PENICILLINS AND ITS TRANSFER IN ENTEROBACTERIACEAE. Lancet. 1965 Feb 20;1(7382):407-9. DOI:10.1016/s0140-6736(65)90004-8 |
2. Datta N and Richmond MH. The purification and properties of a penicillinase whose synthesis is mediated by an R-factor in Escherichia coli. Biochem J. 1966 Jan;98(1):204-9. DOI:10.1042/bj0980204 |
3. Evans J, Galindo E, Olarte J, and Falkow S. Beta-lactamase of R factors. J Bacteriol. 1968 Oct;96(4):1441-2. DOI:10.1128/jb.96.4.1441-1442.1968 |
4. ISBN:0-87969-577-3
5. Gao W, Xing B, Tsien RY, and Rao J. Novel fluorogenic substrates for imaging beta-lactamase gene expression. J Am Chem Soc. 2003 Sep 17;125(37):11146-7. DOI:10.1021/ja036126o |

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