Team:TU Darmstadt/Protocols/pNP Assay

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pNP-Assay

About

pNP-assays are a common way to quantify hydrolytic activity. We use para-Nitrophenylbutyrate (pNPB) as a substrate. As the catalysts we use the enzymes[http://partsregistry.org/wiki/index.php?title=Part:BBa_K808025 FsC], [http://partsregistry.org/wiki/index.php?title=Part:BBa_K808026 pNB-Est13] or our transformed and induced bacteria.

Conditions: T = 34°C pH = 7.4

Method: Measurement of absorption at 405nm every minute over 30 minutes, after addition of enzyme

Pnpb spalt.png

Enzyme

Bacteria