Method for analyte detection using proximity probes
US8268554B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2007 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Jun 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/542
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting an analyte in a sample, comprising (a) contacting the sample with at least one set of at least first, second and third proximity probes, which probes each include an analyte-binding domain and a nucleic acid domain and can simultaneously bind to the analyte, the nucleic acid domain of the third proximity probe being a splint which is capable of hybridizing at least to the nucleic acid domains of the first and second proximity probes, wherein when all of the at least three proximity probes bind to the analyte, the nucleic acid domains of the first and second proximity probes are conjugatable by means of an interaction mediated by the hybridized splint of the third proximity probe; (b) conjugating the nucleic acids, of the first and second proximity probes; and (c) detecting the conjugation. Also provided is a kit for use in such a method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.