Protein Thermal Shift™ Software v1.3

Catalog number: 4466037

Applied Biosystems™  Related applications: Real Time PCR (qPCR) | Target & Lead Identification & Validation

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Description

The Protein Thermal Shift™ Software v1.3 was developed to analyze protein melt fluorescent readings directly from Applied Biosystems® real-time PCR instrument files. Different proteins will have different Protein Thermal Shift™ profiles, each with a unique protein melt curve shape, slope, signal-to-noise ratio, and temperature melt range (see figure below for an example). The Protein Thermal Shift™ Software generates one or multiple melting temperature values (Tm) from these curves by two methods: the Boltzmann-derived Tm and the Derivative Curve-determined Tm, to serve as points of comparison between the curves and represent the relative thermal stability of the protein under different testing conditions.

>> Download a trial version (Registration required)
>> Download the software (License required)

Two Methods for Generating Tm Values
The Boltzmann method fits the data within an automatic (or manually) identified melt region to the two-state Boltzmann model to generate the Tm. Typically, for proteins with a single melt domain, the Boltzmann method is used. However, for proteins with multiple melt domains, the Derivative Curve method can be used. The Derivative Curve method uses a numerically-computed second derivative of the raw data to estimate the temperatures where up to six peaks (local maxima) may occur in the derivative profile. An empirically-derived threshold on the signal-to-noise ratio is used to determine which local maxima will be detected.

Compatible with our Real-Time PCR Systems
The Protein Thermal Shift™ analysis software is compatible with run files generated from these real-time PCR systems: QuantStudio™ 3, 5, 6, 7, and 12K Flex, StepOne™, StepOnePlus™, 7500, 7500 Fast, and ViiA™7.

Prepare Your Samples Using our Protein Thermal Shift™ Kits
Prepare your samples for analysis using our Protein Thermal Shift™ Starter Kit or Protein Thermal Shift™ Dye Kit (available separately). These kits allow users to employ a dye that binds to exposed hydrophobic residues to monitor the thermal stability of proteins using a real-time PCR instrument to identify buffer conditions that stabilize the protein of interest or screen libraries of ligands for compounds that bind the protein of interest.

Specifications

For Use With (Equipment): StepOnePlus™, 7500 Fast System, ViiA™ 7 System, StepOne™, 7500 System
License Type: Static
Product Size: 10 licenses
Operating System: Windows 7 (Service Pack 2)
Software Category: Software

Documents

Manuals & protocols