Revvity, 64HTTAPEH, HTRF Human and Mouse Aggregated HTT Detection Kit, 10,000 assay points

Overview
Huntingtin (HTT) is a cytoplasmic protein which is highly expressed in the brain, and whose anti-apoptotic role is critical for neuronal survival.
The wild-type (WT) protein has a functional structure, with a "normal" polyglutamine (polyQ) domain containing less than 36Q. The mutant HTT protein harbors an abnormally long polyQ tract (> 36Q) which causes the aggregation of the no longer functional protein. HTT aggregation leads to the selective neuronal cell death responsible for Huntington's Disease.
HTRF assays offer many advantages over other technologies:

Homogeneous add-and-read format
No wash steps
Low background
Straightforward miniaturization from 96- or 384-well microplates to high density assay formats such as 384-well low volume and 1536-well plates
Stable signal, providing flexibility in time of readout or size of assays
How it works
Principle of the HTRF Human & Mouse Aggregated HTT assay
The HTRF Aggregated HTT assay is based on a TR-FRET sandwich immunoassay involving two specific antibodies, one labelled with Tb3+-cryptate (donor) and the other with d2 (acceptor). One antibody is directed against the N-terminal part of the protein, and the second recognizes specifically the aggregated form. Both antibodies bind to aggregated HTT, and the donor-acceptor proximity enables a fluorescent TR-FRET signal to occur. The intensity of the signal is directly proportional to the level of HTT aggregates present in the sample (cell lysate or tissue lysate).

 

Protocol of the HTRF Human & Mouse Aggregated HTT assay
The HTRF Aggregated HTT assay can be run in a 96- or 384-well low volume white detection plate (20 µL final). As described here, samples (cell/tissue lysates) are dispensed directly into the assay plate for the detection of HTT aggregates by HTRF reagents. The antibodies labelled with HTRF fluorophores may be pre-mixed and added in a single dispensing step. No washing steps are needed. The protocol can be further miniaturized or upscaled by simply resizing each addition volume proportionally. Application-Protein Quantification
Brand-HTRF
Detection Modality-HTRF
Product Group-Kit
Sample Volume-10 µL
Shipping Conditions-Shipped in Dry Ice
Target-Aggregated HTT
Target Class-Biomarkers
Technology-TR-FRET
Therapeutic Area-Central Nervous System
Unit Size-10,000 assay points