d(-)-alpha-aminobenzylpenicillin

<drug> Penicillin derivative with broad spectrum activity, ampicillin resistance is often used as a marker for plasmid transfer in genetic engineering (for example pBR322 is ampicillin resistant).

(13 Nov 1997)


Terms mentioned in text: drug, penicillin, derivative, broad spectrum, activity, resistance, marker, plasmid, transfer, genetic engineering, resistant
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