Rat Matrilin-4 ELISA Kit PicoKine®

Matrilin-4 ELISA kit for Rat

Rat Matrilin-4 ELISA Kit PicoKine™ (96 Tests). Quantitate Rat Matn4 in cell culture supernatants, serum and plasma (heparin, EDTA). Sensitivity: 10pg/ml.

Product Info Summary

SKU: EK2031
Size: 96 wells/kit, with removable strips.
Reactive Species: Rat
Application: ELISA
Sample Types: cell culture supernatants, serum and plasma (heparin, EDTA).

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Product Name

Rat Matrilin-4 ELISA Kit PicoKine®

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SKU/Catalog Number



96 wells/kit, with removable strips.

*Question: How many samples can I assay/run in this kit?


Rat Matrilin-4 ELISA Kit PicoKine™ (96 Tests). Quantitate Rat Matn4 in cell culture supernatants, serum and plasma (heparin, EDTA). Sensitivity: 10pg/ml.

Storage & Handling

Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)

Cite This Product

Rat Matrilin-4 ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK2031)

Clonality of Antibodies

See Datasheet for details


Expression system for standard: NS0; Immunogen sequence: Q22-K624


<50 pg/ml

Assay Range

31.2 pg/ml - 2,000 pg/ml


There is no detectable cross-reactivity with other relevant proteins.

Reactive Species

EK2031 is reactive to Matn4 in Rat samples

Validated Sample Types

cell culture supernatants, serum and plasma (heparin, EDTA).

Application Guarantee

EK2031 is guaranteed for ELISA in Rat by Boster Guarantee

See how Boster Bio validate our ELISA kits: ELISA Validation Information

Background of Matrilin-4

Matrilin-4 is a 73 kDa secreted glycoprotein that is a member of the matrilin family of the von Willebrand Factor-A (vWA) domain-containing superfamily. This gene is mapped to 3q42. Matrilins are modular extracellular matrix proteins that serve as adaptors and linkers for other matrix proteins. Matrilin-4, like Matrilin‑2, has a broad distribution in both cartilage and in loose connective tissue such as dermis, lung and kidney, while Matrilins 1 and 3 are limited to cartilage. Matrilin-4 is present in nervous tissue and is abundant in the brain. Mature mouse Matrilin-4 shares 98%, 90%, 89% and 66% amino acid (aa) identity with rat, human, canine and chicken Matrilin-4, respectively. The 624 aa mouse Matrilin-4 contains a 22 aa signal sequence, two potential glycosylation sites, and four cysteine-rich EGF-like domains placed between two vWA domains. A short isoform lacks the N-terminal vWA domain (aa 28‑217). A C-terminal alpha -helix/coiled-coil region (aa 590‑623) by which multimers are formed is often proteolytically removed so that Matrilin-4 is found as a mixture of monomers with homo- or hetero- dimers and trimers. Matrilin-4 forms multimers with Matrilins 1 and 2 but not with Matrilin-3. The N-terminal vWA domains of Matrilins associate with collagen IV microfibrils via the proteoglycans biglycan and decorin, linking the fibrils with other matrix constituents aggrecan and collagen II. Matrilins also show calcium-dependent binding to the cartilage oligomeric matrix protein (COMP); this interaction is of high affinity for oligomeric Matrilin-4 and somewhat lower affinity for monomeric Matrilin-4. Functions and distributions of Matrilins overlap enough so that knockouts of Matrilins 1, 2 and 3 lack obvious phenotypes.

Kit Components

Catalog Number Description Quantity
EK2031-CAP Anti-Rat Matn4 Pre-coated 96-well strip microplate 1
EK2031-ST Rat Matn4 Standard 2 vials, 10 ng/tube
EK2031-DA Rat Matn4 Biotinylated antibody (100x) 100ul
AR1103 Avidin-Biotin-Peroxidase Complex (100x) 100ul
AR1106-1 Sample Diluent 30ml
AR1106-2 Antibody Diluent 12ml
AR1106-3 Avidin-Biotin-Peroxidase Diluent 12ml
AR1104 Color Developing Reagent (TMB) 10ml
AR1105 Stop Solution 10ml
AR1106-5 Wash Buffer (25x) 20ml
PLA-SEA Adhesive plate sealers 4

*The kit components are not available for individual purchase.

Materials Required But Not Included In Kit

  • Microplate Reader capable of reading absorbance at 450nm.
  • Automated plate washer (optional).
  • Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions.
  • Multichannel pipettes are recommended for large amount of samples.
  • Deionized or distilled water.
  • 500ml graduated cylinders.
  • Test tubes for dilution.

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Validation Standard Curve O.D. At 450nm

Concentration (pg/ml)031.262.512525050010002000

Data Example Images

Recommended Sample Dilution Ratios

According to our internal validation assays using this ELISA kit, to detect Matrilin-4, Dilution ratio of 1:1, concentration in serum is around 200pg/ml.

Intra Assay Consistency & Inter Assay Consistency

We measured random samples of Rat Matrilin-4 ELISA Kit PicoKine® within the same batch/lot to ensure the consistency of the kits' performances. ELISA intra assay consistency is measured using wells from the same plate/assay kit. ELISA inter assay consistency is measured using wells from different plates from the same batch production/lot.

Intra-Assay PrecisionInter-Assay Precision
Mean (pg/ml)3715774143186939
Standard deviation1.929.8935.572.1113.7649.77
CV (%)5.2%6.3%4.8%4.9%7.4%5.3%


We ensure reproducibility by testing three samples with differing concentrations of Matrilin-4 in ELISA kits from four different production batches/lots.

LotsLot 1 (pg/ml)Lot 2 (pg/ml)Lot 3 (pg/ml)Lot 4 (pg/ml)Mean (pg/ml)Standard DeviationCV (%)
Sample 137374338382.486.5%
Sample 215718616016016511.757.1%
Sample 374179776581477928.233.6%
*number of samples for each test n=16.

Gene/Protein Information For Matn4 (Source: Uniprot.Org, NCBI)

Uniprot ID


Gene ID


Gene Name


Full Name




Alternative Names

FLJ14417; MATN4; matrilin 4; Matrilin4; Matrilin-4 MATN4 matrilin 4 matrilin-4

*if product is indicated to react with multiple species, protein info is based on the gene entry specified above in "species".

For more info on Matn4, check out the Matn4 Infographic

Matn4 infographic

We have 30,000+ of these available, one for each gene! check them out.

In this infographic you will see the following information for Matn4: database IDs, super-family, protein function, synonyms, molecular weight, chromosomal locations, tissues of expression, subcellular locations, post translational modifications, and related diseases, research areas & pathways. If you want to see more information included, or would like to contribute to it and be acknowledged, please contact us [email protected]

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8 Customer Q&As for Rat Matrilin-4 ELISA Kit PicoKine®


Q: for how much duration can samples (cell cultures, serum, and plasma) be stored and still be stable for quantification Matrilin-4 using the EK2031 Rat Matrilin-4 Picokine® ELISA Kit?

Verified Customer

Verified customer

Asked: 2020-08-05


A: Boster Bio does not evaluate sample stability. Variations in sample collection, processing, and storage may alter the stabilityof samples. It is recommend to assay sample immediately after collection when possible, or aliquot into single use volumes and store samples frozen. limit repetitive freeze-thaw cycles with the stored samples to limit protein degradation.

Boster Scientific Support

Answered: 2020-08-05


Q: is there any online tool I can use to streamline the data analysis for my ELISA results?

M. Harris

Verified customer

Asked: 2020-06-07


A: We have a web based ELISA curve fitting (4pl) and data analysis tool. Please give it a try: bosterbio.com/biology-research-tools/ELISA-data-analysis-online. You can also consult our article on ELISA data analysis: bosterbio.com/ELISA-data-analysis-instructions

Boster Scientific Support

Answered: 2020-06-07


Q: how to proceed with the analysis of ELISA data? I have performed Matrilin-4 level in plasma.

Verified Customer

Verified customer

Asked: 2019-01-02


A: we recommend you this article on ELISA data analysis. bosterbio.com/ELISA-data-analysis-instructions. Boster also provides a free tool that you can use to analyze ELISA data. bosterbio.com/biology-research-tools/ELISA-data-analysis-online

Boster Scientific Support

Answered: 2019-01-02


Q: is it okay to use citrate plasma as samples in Rat Matrilin-4 Picokine® ELISA Kit (Catalog # EK2031)?

Verified Customer

Verified customer

Asked: 2018-06-14


A: Chelating agents such as EDTA, Heparin and Citrate can irreversibly bind metal ions from the functional domain of Matrilin-4 causing degradation of its protein structure. Matrilin-4 may be denatured as a result and may compromise the assay's measurements. The chilating sites could also be too close to the epitopes required for detection and block the antigen antibody reaction. We have tested the Matrilin-4 ELISA, treating samples with various anticoagulants and decided that heparin or EDTA can be used for treatment of blood/plasma samples. Do not use other anticoagulents when collecting samples.

Boster Scientific Support

Answered: 2018-06-14


Q: can you recommend the dilution ratio of serum samples for detection of Matrilin-4 in Rat plasma? I am trying to measure a few analytes and it requires 100ul of diluted samples for each well. We have limited sample quantitys so we like to dilute as much as possible.

Verified Customer

Verified customer

Asked: 2017-10-04


A: unable to know the physiological or pathological context of your samples we cannot recommend a dilution ratio without performing a pilot test with your samples. Here is how you can perform a pilot study on your own: perform a serial dilution of your samples on the Matrilin-4 ELISA kit to make sure you have a linear ascending curve followed by a plateau, which signifies the samples saturating the detection limit of the kit. Then you can pick the dilution ratios from samples in the linear part of the curve as your experimental dilution ratio.
If you are interested in using our ELISA service, you can also send us your sample and we will take care of everything for you. You can check our service details here: bosterbio.com/services/assay-services/ELISA-testing-service
Since you mentioned you have limited samples, our cost effective multiplex ELISA service would fit perfectly for your needs, where we can generate dozens of data points using as little as 25ul sample volume. Information on this service is also in the above link.

Boster Scientific Support

Answered: 2017-10-04


Q: which procedure should I follow in order to thaw whole blood sample for Matrilin-4 ELISA after freezing?

Verified Customer

Verified customer

Asked: 2017-08-05


A: we do not recommend freezing and thaw whole blood. erythrocytes are fragile and, if frozen and thawed, will undergo hemolysis rendering the samples useless. To keep your blood samples to test Matrilin-4 for a later time, you should let the blood clot in glass tubes and separate the serum to freeze for later analysis.

Boster Scientific Support

Answered: 2017-08-05


Q: Are Boster Bio recombinant proteins and antibodies sterile?

T. Gandhi

Verified customer

Asked: 2014-04-20


A: although the vials are bottled using aseptic techniques, heat-treated vials, and sterile stock solutions, they are not considered or guaranteed to be sterile. If sterile material is required for an experiment, the material can be filtered through a 0.2 micron filter designed for use with biological fluids.

Boster Scientific Support

Answered: 2014-04-20


Q: What is the optimal O.D. value for Matrilin-4 ELISA kit? I performed your Matrilin-4 ELISA on serum samples. For my positive control, I received an O.D. value of 0.826, while my negative control received a value of 0.136. I obtained both of these controls from the ELISA kit, where your kit's typical data shows O.D. values much higher than my positive control and your background is lower. My samples O.D. values are around 0.225 and the highest is only 0.357. is it safe to say these samples contain Matrilin-4 even though the O.D. values are not very high?

Verified Customer

Verified customer

Asked: 2014-03-20


A: The absolute O.D. values may change according to incubation time. The more you incubate the higher the O.D. values are going to be. a point of focus should be is whether your sample O.D. values are statistically significantly higher than your blank values. in the example mentioned, you could extend your development time in the substrate incubation step to obtain higher O.D. values, as long as your negative controls' O.D. values are not increasing faster in proportion to your positive controls. normally, a sample with O.D. value 2 standard deviations higher than your negative controls can be considered positive. We calculate the sensitivity of this ELISA kit by converting cutoff O.D. value, calculated as the average of 20 negative controls plus 2 standard deviations of the 20 negative controls, into a concentration. in other words, when we claim this Matrilin-4 ELISA kit to have sensitivity of 10pg/ml, that means the minimum amount of Matrilin-4 that can be declared/interpreted as positive by the above standard is 10pg/ml.

Boster Scientific Support

Answered: 2014-03-20


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