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Human Troponin I ProQuantum Immunoassay Kit
How ProQuantum immunoasssays work (A) Antibody-antigen binding: Antibodies bind to two separate epitopes on the antigen (during a 1-hr incubation), which brings the two conjugated oligonucleotides into close proximity. (B) Ligation and amplification of signal (in a qPCR instrument): DNA ligase and a third splint oligonucleotide connector are added to ligate the two ends of the conjugated oligonucleotides, creating a 100-base DNA template. Once the ligase is inactivated at 95°C, the sample is amplified through 40 cycles of annealing and ext... View More
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Product Specifications
Analytical sensitivity
<0.3 pg/mL
Assay range
0.32-25,000 pg/mL
Sample type/volume
Serum
2-5 µL
Plasma
2-5 µL
Supernatant
2-5 µL
Hands-on time
30 min
Time-to-result
2 hr
Homogenous (no wash)
Yes
Instrument
qPCR Instruments
Product size
96 Tests
Contents
Assay Dilution Buffer
Antibody-Conjugate A
Antibody-Conjugate B
Antibody-Conjugate Dilution Buffer
Standard
Master Mix
Ligase
Antibody-Conjugate A
Antibody-Conjugate B
Antibody-Conjugate Dilution Buffer
Standard
Master Mix
Ligase
Shipping conditions
Dry ice
Storage
-20°C
Protein name
Cardiac Troponin I
Species (tested)
Human
Assay kit format
Proximity-based Immunoassay
Label or dye
FAM™
About This Kit
The ProQuantum Human Troponin I Immunoassay Kit is designed to provide quantitative measurements of human Troponin I in small sample volumes. Utilizing proximity-based amplification technology, the assay combines the analyte specificity of high-affinity antibody-antigen binding with the signal detection and amplification capabilities of real-time PCR to achieve a simple yet powerful next-generation protein quantitation platform. A user-friendly workflow combined with intuitive software for analytics enables sample-to-answer in just 2 hours.
• High sensitivity-detect low levels of protein with greater sensitivity than traditional methods
• Broad dynamic range-5 logarithmic units, minimizing sample dilutions to ensure they fall within the range
• Small sample consumption-use 2-5 µL of sample (compared to 75 µL for triplicate wells with other methods)
• Fast, easy workflow-2 hours from sample to answer, with no wash steps
• No proprietary instrument to purchase-runs on any real-time PCR instrument
ProQuantum immunoassays utilize a matched pair of target-specific antibodies, each conjugated to a DNA oligonucleotide. During antibody-analyte binding, the two DNA oligos are brought into close proximity, which allows for ligation of the two strands and subsequent creation of a template strand for amplification. This platform leverages the sensitivity and large dynamic range of Applied Biosystems TaqMan real-time PCR technology (Figure 1).
The assay workflow is fast and easy-2 steps in 2 hours. There are a total of 7 components in each kit (Figure 2). First, mix the antibody-conjugates, dilute the sample, and create the standard curve in a working plate. Then, using a multi-channel pipette, add the antibody-conjugates and sample (or standard) into the wells of a PCR plate and incubate for 1 hour. Combine the master mix and ligase and add to the wells of the PCR plate, then run the plate on any qPCR instrument. After the run is complete, import the results file into the ProQuantum software (cloud-based version at https://apps.thermofisher.com/apps/proquantum). Using this software, the data can be analyzed easily to obtain protein concentration values. The software allows you to set up standard curves, design plate layouts, apply a 5PL weighted algorithm, and obtain robust statistical group-wise comparisons.
Target information
Cardiac Troponin I (Cardiac-specific troponin I, TnI, Troponin I) is an integral inhibitory protein in cardiac muscle that exists as part of a complex with troponin C (TnC) and troponin T (TnT). The TnT subunit of troponin binds to tropomyosin-t form, a troponin-tropomyosin complex, anchored in place by the binding of TnI to actin, within muscle thin filaments. Structural change resulting from the binding of calcium to specific sites on the regulatory TnC subunit, releases the inhibitory region of TnI from actin, anabling the attachment of the molecular motor protein myosin, allowing for muscle contraction and hence movement. The measurements of blood TnI and TnT levels is an important diagnostics indicator of heart muscle damage, and can be used to differentiate between angina and myocardial infarction in patients with chest pains. Cardiac Troponin I has also been shown to inhibit angiogenesis in vivo and in vitro. Mutations in the Cardiac Troponin I gene cause familial hypertrophic cardiomyopathy type 7 (CMH7) and familial restrictive cardiomyopathy (RCM).
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Gene aliases : CMD1FF, CMD2A, CMH7, cTnI, RCM1, TNNC1, TNNI3
Gene ID : (Human) 7137
Gene symbol : TNNI3
Protein Aliases : Cardiac troponin I, cardiomyopathy, dilated 2A (autosomal recessive), troponin I type 3 (cardiac), Troponin I, cardiac muscle
UniProt ID (Human) P19429
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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