Natural and recombinant rat MMP-9 (Pro-, active, and TIMP-complexed)
< 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.
No significant interference observed with available related molecules.
The Quantikine Rat Total MMP-9 Immunoassay is a 4.5 hour solid phase ELISA designed to measure total rat MMP-9 (Pro-, active, and TIMP-complexed MMP-9) in cell culture supernates, serum, and plasma. It contains NS0-expressed recombinant rat MMP-9 and antibodies raised against the recombinant factor. This immunoassay has been shown to accurately quantitate the recombinant protein. Results obtained using natural rat MMP-9 showed dose-response curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for natural rat MMP-9.
Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision
The recovery of rat MMP-9 spiked into various matrices was evaluated.
Average % Recovery
Cell Culture Samples (n=4)
Platelet-poor Heparin Plasma (n=4)
To assess the linearity of the assay, samples containing high concentrations of rat MMP-9 were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
The matrix metalloproteinases (MMPs) consist of 24 known human zinc proteases with essential roles in breaking down components of the extracellular matrix (ECM). Additional MMP substrates include cytokines, chemokines, growth factors and binding proteins, cell/cell adhesion molecules, and other proteinases. With a few exceptions, MMPs share common structural motifs including a pro-peptide domain, a catalytic domain, a hinge region, and a hemopexin-like domain. Synthesized as pro-enzymes, most MMPs are secreted before conversion to their active form. MMP activities are modulated on several levels including transcription, pro-enzyme activation, or by their endogenous inhibitors, tissue inhibitors of metalloproteinases (TIMPs). A subset of MMPs are associated with membranes and designated as membrane-type metalloproteinases (MT-MMP).
Matrix Metalloproteinase 9
Entrez Gene IDs:
4318 (Human); 17395 (Mouse); 81687 (Rat)
92 kDa gelatinase; 92 kDa type IV collagenase; CLG4B; EC 3.4.24; EC 188.8.131.52; Gelatinase B; GELB; macrophage gelatinase; MANDP2; matrix metallopeptidase 9; matrix metalloproteinase 9; matrix metalloproteinase-9; MMP9; MMP-9; type V collagenase
Refer to the product for complete assay procedure.
Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.
Prepare all reagents, standard dilutions, and samples as directed in the product insert.
Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.
50 µL Assay Diluent
Add 50 µL of Assay Diluent to each well.
50 µL Standard, Control, or Sample
Add 50 µL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours.
Aspirate each well and wash, repeating the process 4 times for a total of 5 washes.
100 µL Conjugate
Add 100 µL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 2 hours.
Aspirate and wash 5 times.
100 µL Substrate Solution
Add 100 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes. PROTECT FROM LIGHT.
100 µL Stop Solution
Add 100 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.
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Human cell conditioned medium
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Other Experimental Details
Easy to follow and extrapolate graph for experiments