Preparation of amine-enriched proteins having an increased isoelectric point
US5162219A · kind A · utility
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5Claims
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Key dates
| Filing date | Jun 18, 1990 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | Jun 18, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/535
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Amine-enriched proteins, having an increased isoelectric point are provided by reacting a naturally occurring protein with an amide bond forming agent in the presence of a polyamine or a salt thereof. Such amine-enriched proteins such as enzymes are useful as labels in immunoassays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.