| Field | Specification |
|---|---|
| Mfr No | |
| Assay Time | |
| Detection Method | |
| Product Type | |
| Sample Type(s) | Food, beverage, biological samples (e.g. cell lysate, tissue homogenate, serum, etc.) |
| Shipping | |
| Species | |
| Storage |
Overview
For quantitative colorimetric determination of isocitrate and evaluation of drug effects on its metabolism. The assay uses OD565nm for signal readout. Compatible sample input includes Food, beverage, biological samples (e.g. cell lysate, tissue homogenate, serum, etc.). Typical stated assay timing is 10 min.
Key elements and design rationale
- Readout format: OD565nm supports plate-based signal acquisition and consistent comparison across matched samples.
- Sample compatibility: The stated sample scope includes Food, beverage, biological samples (e.g. cell lysate, tissue homogenate, serum, etc.), which is useful when aligning matrix type with calibration and control design.
- Analytical range context: The supplied specifications include a stated detection limit of 20 µM for interpreting low-signal samples.
- Feature emphasis: Fast and sensitive. Linear detection range (20 µL sample): 20 to 5000 µM for 10 min reaction.
Additional feature notes highlight Convenient and high-throughput. Homogeneous “mix-incubate-measure” type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Available format information for this listing includes 100 Tests.
Biological background
This product is centered on measurement of isocitrate within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.
More details
ISOCITRATE (ISOCITRIC ACID) is a substrate in the citric acid (TCA) cycle. Isocitrate is formed by the isomerization of citrate catalyzed by the enzyme aconitase. Isocitrate is oxidized by isocitrate dehydrogenase producing α-ketoglutarate and generating NADPH. Isocitrate is commonly found in many fruits and vegetables and their processed products. Industrially, isocitrate is used as a marker to identify the quality and purity of fruit juices. BioAssay Systems’ isocitrate assay measures the NADPH generated from the oxidation of isocitrate. The NADPH converts the dye to an intense violet color with an absorption maximum at 565 nm. The increase in absorbance at 565 nm is directly proportional to the isocitrate concentration
Detection method
Colorimetric (OD 565 nm).
Detection limit and analytical sensitivity
Reported detection limit: 20 µM.
Procedures and timing
Stated procedure or timing information: 10 min.
Research relevance and current trends
- Plate-based quantification and side-by-side group comparison remain central use cases for this assay format.
- The product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.
- The description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.
Common research applications
- Quantify isocitrate in food, beverage, biological samples (cell by OD565 nm readout.
- Compare treatment or phenotype groups using matched food, beverage, biological samples (cell handling.
- Monitor time-course or pre/post changes in food, beverage, biological samples (cell across study conditions.
Interpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.
Notes for experimental interpretation
- Matrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.
- Use appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.
For laboratories requiring additional technical capacity, we provide scientific support services including assay execution, method guidance, product sourcing, and customization to align the assay with specific experimental objectives. If you need assistance selecting the appropriate kit configuration, adapting the workflow to your application, or identifying related research services, please click Talk to a Scientist, email support@biohippo.com, or review our Research Services; a member of our scientific team will follow up with recommendations tailored to your study.