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SKU:EK0540
Application:ELISA
Sensitivity:<1pg/ml
Sample Type:cell culture supernates, serum and plasma(heparin, EDTA, citrate).
Price: $320.00
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Overview

Product Name Rat VEGF PicoKine™ ELISA Kit
Description Sandwich High Sensitivity ELISA kit for Quantitative Detection of Rat VEGF. 96wells/kit, with removable strips.
Cite This Product Rat VEGF PicoKine™ ELISA Kit (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK0540)
Validated Species Rat
Application ELISA

*Our Boster Guarantee covers the use of this product in the above tested applications.

**For positive and negative control design, consult "Tissue specificity" under Protein Target Info.

Immunogen Expression system for standard: NSO,A27-R190
Cross Reactivity There is no detectable cross-reactivity with other relevant proteins.
Pack Size 96wells/kit, with removable strips.

Properties

Sensitivity <1pg/ml
*Sensitivity, or Lower Limit of Detection (LLD), is the minimum level of target protein the ELISA assay can detect. We measure 20 blank wells and if the O.D. value is 2 standard deviations higher than the blanks' average O.D. the sample can be deemed positive.
Assay Range 15.6pg/ml-1000pg/ml
*This assay range is determined using common samples. For samples with low target protein concentrations, users can adjust the standard curve to extend the lower limit of assay range.
Sample Type cell culture supernates, serum and plasma(heparin, EDTA, citrate).

*The above listed samples are the ones valided with the assay. If you do not see your sample of interest listed, as long as there is enough level of target protein present in the sample, this Picokine™ ELISA kit should detect it.
**For protocol and tips regarding preparing your sample of interest, please check our ELISA sample preparation guide.
Capture Antibody monoclonal antibody from mouse
Detection Antibody polyclonal antibody from goat
Natural Levels Some research articles suggesting the natural levels of Vegfa are listed below:
Storage Store at 4˚C for 6 months, at -20˚C for 12 months. Avoid multiple freeze-thaw cycles(Shipped with wet ice.)

Kit Components

Catalog numberDescriptionQuantity
EK0540-CAP96-well plate precoated with anti-Rat Vegfa antibody1
EK0540-STlyophilized recombinant Rat Vegfa standard10ng/tubex2
EK0540-DAbiotinylated anti-Rat Vegfa antibody130ul(dilution 1:100)
AR1103Avidin-Biotin-Peroxidase Complex(ABC)130ul(dilution 1:100)
AR1106-1sample diluent buffer30ml
AR1106-2antibody diluent buffer12ml
AR1106-3ABC diluent buffer12ml
AR1104TMB color developing agent10ml
AR1105TMB stop solution10ml
PLA-SEAAdhesive cover4
AR0030-EPBS washing bufferPowder for 1000ml

Washing buffer Preparation: Disolve AR0030-E to 1000ml distilled water and adjust pH to 7.2~7.6. Finally, adjust the total volume to 1L.

*Additional components can be purchased. If you need extra of the above components please order them together to avoid additional shipping charges.

See Prices For Extra Components

Material Required But Not Provided

  • 1. Microplate reader in standard size.
  • 2. Automated plate washer.
  • 3. Adjustable pipettes and pipette tips. Multichannel pipettes are recommended in the condition of large amount of samples in the detection.
  • 4. Clean tubes and Eppendorf tubes.
*Reagents needed for sample collection and preparation are not included in the kit.

Protein Target Info (Source: Uniprot.org)

You can check the tissue specificity below for information on selecting positive and negative control.

Gene Name Vegfa
Protein Name Vascular endothelial growth factor A
Molecular Weight 40241 MW
Uniprot ID B5DEK7
Alternative Names Vascular endothelial growth factor A ;Vegfa ;
Research Areas |cardiovascular|angiogenesis|growth factors|vegf| signal transduction|growth factors/hormones| cancer|cancer metabolism|response to hypoxia| metabolism|pathways and processes|metabolism processes|types of disease|
*if product is indicated to react with multiple species, protein info is based on the human gene.

Background for Vascular endothelial growth factor A

Vascular permeability factor/vascular endothelial growth factor(VPF/VEGF), a potent cytokine expressed by most malignant tumors, has critical roles in vasculogenesis and both physiological and pathological angiogenesis. VEGF produced by tumor cells potently stimulates endothelial cell proliferation and angiogenesis and plays a key role in the pathophysiology of several neoplasias. VEGF may also play a pivotal role in mediating the development and progression of diabetic retinopathy. VEGF, a major regulator of angiogenesis, binds to two receptor tyrosine kinases, KDR/Flk-1 and Flt-1. The VEGF gene is mapped by fluorescence in situ hybridization to chromosome 6p12.The standard product used in this kit is recombinant rat VEGF164, which is a 25KDa single chain as well as a 50KDa dimer.

Rat VEGF PicoKine™ ELISA Kit Images

Click the images to enlarge.

Rat VEGF PicoKine™ ELISA Kit
Rat VEGF PicoKine ELISA Kit standard curve

Intra/Inter Assay Precision

>
Intra-Assay Precision Inter-Assay Precision
Sample 1 2 3 1 2 3
n161616242424
Mean(pg/ml)120305621236289632
Standard deviation4.4415.8629.8110.6218.2134.76
CV(%)3.75.24.84.56.35.5

Typical Data Obtained from Rat VEGF PicoKine™ ELISA Kit

(TMB reaction incubate at 37°C for 25-30min)

Concentration(pg/ml)015.631.262.51252505001000
O.D.0.0230.0750.1190.2340.4010.8041.4331.971

*The typical data is obtained from Boster's internal QC result and for reference only. It may differ from the lab test results of the end users. It is more important that the user's lab test results reflect the same linearity demonstrated in the typical data than achieving exactly the same O.D. values.

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Publications

Daniel Escorsim Machado, Karina Cristina Rodrigues-Baptista, Jessica Alessandra-Perini, Roberto Soares de Moura, Thiago Alves dos Santos, Kariny Gomes Pereira, Yasmin Marinho da Silva, Pergentino José Cunha Souza, Luiz Eurico Nasciutti, Jamila Alessandra Perini Euterpe oleracea Extract (Açaí) Is a Promising Novel Pharmacological Therapeutic Treatment for Experimental Endometriosis
Zhang Tt, Fang Xl, Gang J. J Int Med Res. 2012;40(5):1840-9. Endostatin Gene Therapy For Endometriosis In Rats.
Yao X, Miao W, Li M, Wang M, Ma J, Wang Y, Miao L, Feng H. Neurosci Lett. 2010 Mar 26;472(3):179-83. Doi: 10.1016/J.Neulet.2010.02.002. Epub 2010 Feb 4. Protective Effect Of Albumin On Vegf And Brain Edema In Acute Ischemia In Rats.
Zheng H, Liu C, Ou Y, Zhang Y, Fu X. J Ethnopharmacol. 2013 Jun 3;147(3):595-602. Doi: 10.1016/J.Jep.2013.03.043. Epub 2013 Mar 30. Total Saponins Of Panax Notoginseng Enhance Vegf And Relative Receptors Signals And Promote Angiogenesis Derived Fr...
Lu G, Zhang G, Zhang C, Chen C, Liu R. Radiat Oncol. 2013 Mar 26;8:74. Doi: 10.1186/1748-717X-8-74. A Study Of 131Iodine-Labeling Of Histamine-Indomethacin: Its In Vivo Therapeutic Effect And Anti-Tumor Mechanisms In Lewis-Bearing Lung Cancer.
Yang W, Zhang Y, Yu J, Li S. Eur J Surg Oncol. 2010 May;36(5):501-6. Doi: 10.1016/J.Ejso.2010.01.007. Epub 2010 Feb 23. The Low Expression Of Cd80 Correlated With The Vascular Endothelial Growth Factor In Esophageal Cancer Tissue.
Zhou L, Zhang K, Li J, Cui X, Wang A, Huang S, Zheng S, Lu Y, Chen W. Reprod Toxicol. 2013 Jun;37:62-9. Doi: 10.1016/J.Reprotox.2013.02.001. Epub 2013 Feb 11. Inhibition Of Vascular Endothelial Growth Factor-Mediated Angiogenesis Involved In Repro...
Chen J, Wei D, Zhuang H, Qiao Y, Tang B, Zhang X, Wei J, Fang S, Chen G, Du P, Huang X, Jiang W, Hu Q, Hua Zc. Mol Cell Proteomics. 2011 Jun;10(6):M111.009399. Doi: 10.1074/Mcp.M111.009399. Epub 2011 Apr 7. Proteomic Screening Of Anaerobically Reg...
Fu Z, Chen D, Cheng H, Wang F. Med Sci Monit. 2015 Jan 27;21:318-25. Doi: 10.12659/Msm.893265. Hypoxia-Inducible Factor-1?? Protects Cervical Carcinoma Cells From Apoptosis Induced By Radiation Via Modulation Of Vascular Endothelial Growth Factor A...
Liu Y, Lv L. J Huazhong Univ Sci Technolog Med Sci. 2004;24(5):470-2. Mechanism Of Elevated Vascular Endothelial Growth Factor Levels In Peritoneal Fluids From Patients With Endometriosis.
Li Xy, Lin Yc, Huang Wl, Hong Cq, Chen Jy, You Yj, Li Wb. Med Oncol. 2012 Jun;29(2):714-20. Doi: 10.1007/S12032-011-9904-1. Epub 2011 Mar 24. Zoledronic Acid Inhibits Proliferation And Impairs Migration And Invasion Through Downregulating Vegf And...
Ye X, Ren H, Zhang M, Sun Z, Jiang Ac, Xu G. Invest Ophthalmol Vis Sci. 2012 Jun 8;53(7):3481-9. Doi: 10.1167/Iovs.11-9076. Erk1/2 Signaling Pathway In The Release Of Vegf From M??ller Cells In Diabetes.
Shen J, Shen S, Das Un, Xu G. Lipids Health Dis. 2012 Jul 10;11:90. Doi: 10.1186/1476-511X-11-90. Effect Of Essential Fatty Acids On Glucose-Induced Cytotoxicity To Retinal Vascular Endothelial Cells.
Liu D, Cao G, Cen Y, Liu T, Peng W, Sun J, Li X, Zhou H. Int Immunopharmacol. 2013 Oct;17(2):237-44. Doi: 10.1016/J.Intimp.2013.06.002. Epub 2013 Jun 19. The Radiosensitizing Effect Of Cpg Odn107 On Human Glioma Cells Is Tightly Related To Its Ant...
Chai Zt, Kong J, Zhu Xd, Zhang Yy, Lu L, Zhou Jm, Wang Lr, Zhang Kz, Zhang Qb, Ao Jy, Wang M, Wu Wz, Wang L, Tang Zy, Sun Hc. Plos One. 2013 Oct 23;8(10):E77957. Doi: 10.1371/Journal.Pone.0077957. Ecollection 2013. Microrna-26A Inhibits Angiogenes...
Li Xq, Ouyang Zg, Zhang Sh, Liu H, Shang Y, Li Y, Zhen Ys. Cancer Biol Ther. 2014 Apr;15(4):398-408. Doi: 10.4161/Cbt.27626. Epub 2014 Jan 14. Synergistic Inhibition Of Angiogenesis And Glioma Cell-Induced Angiogenesis By The Combination Of Temozo...
Wang L, Zeng Y, Wang T, Liu H, Xiao H, Xiang H. Plos One. 2014 Jan 27;9(1):E86509. Doi: 10.1371/Journal.Pone.0086509. Ecollection 2014. Evaluating The Potential Bioactivity Of A Novel Compound Er1626.
Zhang H, Chen Y, Fan B, Wang W, Zhu W. Tumour Biol. 2015 May;36(5):3871-80. Doi: 10.1007/S13277-014-3029-Z. Epub 2015 Jan 11. Overexpression Of Vegf183 Promotes Murine Breast Cancer Cell Proliferation In Vitro And Induces Dilated Intratumoral Micr...
Das Kk, Jargar Jg, Saha S, Yendigeri Sm, Singh Sb. Indian J Pharmacol. 2015 May-Jun;47(3):285-91. Doi: 10.4103/0253-7613.157126. ??-Tocopherol Supplementation Prevents Lead Acetate And Hypoxia-Induced Hepatic Dysfunction.
Fan N, Zhang M, Xu K, Ke X, Ding Y, Wang D, Liu Y, Ning Y, Deng X, He H. Drug Alcohol Depend. 2015 Jul 1;152:57-61. Doi: 10.1016/J.Drugalcdep.2015.04.022. Epub 2015 May 8. Serum Level Of Vascular Endothelial Growth Factor Decreased In Chronic Keta...
Sancakdar E, Guven As, Uysal Eb, Deveci K, G??lt??rk E. Pediatr Infect Dis J. 2015 Aug;34(8):E200-5. Doi: 10.1097/Inf.0000000000000706. Important Of Angiopoietic System In Evaluation Of Endothelial Damage In Children With Crimean-Congo Hemorrhagic F...
Lin L, Han Mm, Wang F, Xu Ll, Yu Hx, Yang Py. Cell Death Dis. 2014 Oct 23;5:E1488. Doi: 10.1038/Cddis.2014.392. Cxcr7 Stimulates Mapk Signaling To Regulate Hepatocellular Carcinoma Progression.
Guo Zy, Sun X, Xu Xl, Zhao Q, Peng J, Wang Y. Neural Regen Res. 2015 Apr;10(4):651-8. Doi: 10.4103/1673-5374.155442. Human Umbilical Cord Mesenchymal Stem Cells Promote Peripheral Nerve Repair Via Paracrine Mechanisms.
Pan B, Ren H, Ma Y, Liu D, Yu B, Ji L, Pan L, Li J, Yang L, Lv X, Shen X, Chen B, Zhang Y, Willard B, He Y, Zheng L. Int J Cancer. 2012 Jul 1;131(1):70-82. Doi: 10.1002/Ijc.26341. Epub 2011 Aug 30. High-Density Lipoprotein Of Patients With Type 2 ...
Chen L, Xiao Z, Meng Y, Zhao Y, Han J, Su G, Chen B, Dai J. Biomaterials. 2012 Feb;33(5):1437-44. Doi: 10.1016/J.Biomaterials.2011.10.056. Epub 2011 Nov 10. The Enhancement Of Cancer Stem Cell Properties Of Mcf-7 Cells In 3D Collagen Scaffolds For...
Liu Lj, Zhang J, Xiao Zf, Dai B, Sun My, Chen L, Chen B. J Biomed Mater Res B Appl Biomater. 2014 May;102(4):772-80. Doi: 10.1002/Jbm.B.33058. Epub 2013 Oct 21. Three-Dimensional Collagen Scaffold Enhances The Human Adenoid Cystic Carcinoma Cancer...
Chen J, Xu J, Li J, Du L, Chen T, Liu P, Peng S, Wang M, Song H. Int Immunopharmacol. 2015 May;26(1):147-52. Doi: 10.1016/J.Intimp.2015.03.025. Epub 2015 Mar 31. Epigallocatechin-3-Gallate Attenuates Lipopolysaccharide-Induced Mastitis In Rats Via...
Cai B, Li X, Wang Y, Liu Y, Yang F, Chen H, Yin K, Tan X, Zhu J, Pan Z, Wang B, Lu Y. Plos One. 2013 May 7;8(5):E63561. Doi: 10.1371/Journal.Pone.0063561. Print 2013. Apoptosis Of Bone Marrow Mesenchymal Stem Cells Caused By Homocysteine Via Activ...
Yang Py, Rui Yc, Lu L, Li Tj, Liu Sq, Yan Hx, Wang Hy. Life Sci. 2005 Sep 30;77(20):2529-39. Time Courses Of Vascular Endothelial Growth Factor And Intercellular Adhesion Molecule-1 Expressions In Aortas Of Atherosclerotic Rats.
Uysal N, Kiray M, Sisman Ar, Camsari Um, Gencoglu C, Baykara B, Cetinkaya C, Aksu I. Biotech Histochem. 2015 Jan;90(1):55-68. Doi: 10.3109/10520295.2014.946968. Epub 2014 Sep 9. Effects Of Voluntary And Involuntary Exercise On Cognitive Functions,...
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FAQs

Q: The protocol says to use neutral PBS and provides a recipe. Could I use neutral PBS made with KCl or KH2PO4 (common constituents for most PBS recipes) instead? Keywords: protocol, alternative buffer, applications, reagent recipe
A: Yes, it is ok to use common PBS recipes. We have tried many types of buffers with common constituents, and no significant difference was observed whatsoever.
Q: Is this product suitable for rat alveolar bone samples? Keywords: protocol, sample type, applications
A: EK0540 can be used to detect the rat alveolar bone samples if the concentraion of VEGF in the sample is in the detection range (15.6pg/ml-1000pg/ml) of the ELISA kit. Here is the sample preparation method of general bone tissue for your reference: Extract demineralized bone samples in 4 M Guanidine-HCl and protease inhibitors. Dissolve the final sample in 2 M Guanidine-HCl. The ELISA kit protocol can be found on the datasheet of EK0540, which is downloadable as a PDF on the product's webpage.
Q: What is your recommended protocol on preparing tissues (such as bone) for ELISA analysis? Keyword: sample preparation, treatment procedures
A: The protocol for bone tissue is as follows - Bone Tissue: Extract demineralized bone samples in 4 M Guanidine-HCl and protease inhibitors. Dissolve the final sample in 2 M Guanidine-HCl. However, we did not test tissue samples with the Elisa kits so a pilot experiment is recommended.
Q: Why are my O.D. values different than your values on the datasheet? Keyword: troubleshooting, reference
A: We detected the kit in our lab and got our values on the datasheet before delivery, but protein activity will decrease as time goes on, so you may get lower O.D. values than ours. However, it should still be in a reasonable range and the standards can be used to calculate sample values. Good linearity of curve is more important than the actual numerical value.
Q: On the ELISA kit datasheet it says "HRP substrate TMB was used to visualize HRP enzymatic reaction." What is HRP and which part of the kit contains HRP? Keyword: kit components, reagents, protocol
A: It means Avidin-Biotin-Peroxidase Complex(AR1103) and you could find it in Kit Components.
Q: Do you offer any ELISA kits that can work with whole blood samples instead of plasma or urine? Keyword: applications
A: We test serum and plasma routinely, and there is very little difference between serum, plasma and whole blood. The whole blood also contains proteins we need to test. The kit can be used to test whole blood in theory.
Q: Does silicic acid (formula SiOH4) affect the results of the ELISA assay? Keyword: protocol, reagents
A: The acid may affect the binding of antigen to antibody, it is not recommended to use. That being said, it is unlikely to affect the reaction if the solution remains an overall neutral environment.
Q: Is there lot-to-lot variation of the ELISA kits? What are Boster's general services when I have questions about your kits? Keyword: technical support, help, customer service
A: The NIBSC/WHO 1st International Standard is evaluated, we always test our kits before delivery, and customers can find the test result on the protocol. If the customer needs technical support from us to analyze their data, please contact us and we ask that you provide us the following information: the lot# and production date, and when did the customer detect the kit.
Q: The results of my standards do not look correct, what could be the problem? Keyword: troubleshoot, protocol
A: Double check the protocol for plate washing. It should be examined on three aspects: 1) Did you make the washing buffer correctly? 2) How long did you let the buffer stay in wells? 3) What was the volume of the washing buffer added to each well? In addition, pay attention when adding sample to avoid contamination. And we suggest testing the standards again. Values of standards at low concentration are more affected than that at higher concentration, so customer can still get expected values at high concentration even if there is an error. If problems persist, please contact technical support with the catalog and lot number of your product.
Q: What is the well depth of the 96 well plates for the ELISA kits? Keyword: well capacity, product size
A: The well depth is 300ul, and the max capacity is 350ul. The height of the well is 1.1 cm, and the internal size is 1 cm.
Q: The kit does not include wash solution, what should I do? Keyword: wash buffer
A: Our Elisa kits do not come with wash solution, but we have included information about how to make washing buffer on the datasheet. Please refer to the "Material Required But Not Provided" section. We also offer washing buffer for sale separately (Phosphate Buffered Saline Powder SKU: AR0030).
Q: For your ELISA kits, are the capture and detection antibodies polyclonals or monoclonals? Keyword: antibody clonality
A: This information can be found for each kit under the "Properties" section, and you can find the immunogen sequence information in the "Overview" section.
Q: Do your ELISA kits come with sealants or plate covers? Keyword: storage, sequential use
A: The kit can be used within a month sequentially if it's opened and stored at 4 degree. There is no need to use sealants, the plate can be packaged with aluminum foil bag, and for other reagents keep bottle tightly closed.
Q: Are the mouse, rat, and human VEGF kits truly specific for each species or do they cross react? Which isoforms of VEGF do the human, mouse and rat kit detect? Keyword: specificity
A: Our VEGF Elisa kits are truly specific for each species, and they detect 165 amino acid form.
Q: What is the concentration of Sodium Azide in your Elisa kits? Keyword: preservative
A: Our Elisa kits contain 0.02% Sodium Azide. All of the components except TMB colour developing reagent and stop solution contains 0.02% Sodium azide as the preservative.
Q: Are there positive and negative controls available for my ELISA kit? Keyword: positive control, negative control
A: We can provide a recombinant protein as a control. It costs $50 per control and takes 2 weeks to manufacture. We cannot provide a positive or negative control in serum.
Q: Why do I get positive results for my knockout (KO) model when used as a control?
A: The knockout (KO) model may contain truncated forms of the target protein which can be detected by the ELISA assay.
Q: How long do I soak my plate in the wash buffer?
A: The plate should soak in 0.3mL PBS or TBS wash buffer for at least 1-2 minutes in an automated wash station.
Q: Can I use Tween in my wash buffer?
A: While it is not recommended to use Tween in your wash buffer, small amounts (<0.1% concentration) may decrease background due to insufficient blocking.
Q: What plate type do I use to set up the microplate reader?
A: Our plates are made with the Corning costar plates similar to the DNA-BIND 96 -well plates.
Q: Can I use the RIPA lysis buffer with this kit?
Q: Can I use the RIPA lysis buffer with this kit? A: Yes. You can use this buffer to prepare for your tissue homogenates.
Q: What should I use for negative control?
A: Please contact us for negative control suggestions. You can also check expression databases such as genecards, uniprot etc. Due to logistic reasons, we do not sell serum or lysates that we use internally for positive or negative control.
Q: Where can I find troubleshooting information? What should I do if I have unexpected bands, high background, no signal, weak signal
A: You can find Boster's troubleshoot guides under tech support tab. Please contact us for further assistance on troubleshooting your experiment.
Q: What is the normal level of this protein in my sample of interest?
A: We have reviewed literature and have gathered this information for most of our ELISA kits. You can find this information on the product page or contact us if you cannot find it. However this information is only suggestive and cannot replace pilot studies in determining the optimal sample dilution ratio.
Q: Is the plate separable? Can I use only part of the kit and save the rest for later? How many samples can I run with one kit?
A: Yes the plate is separable. There are 12 strips of 8 wells each, all removable from the plate. The amount of samples you can run depend on a few factors. In the most common ELISA set up, you will use two strips for standards, and 10 strips for samples using duplicates, which let you run up to 40 samples per kit. Contact us if you have questions regarding other situations.
Q: Does the kit contain sample preparation reagents? How do I prepare my samples?
A: Since different sample types require different reagents, we do not include them in the ELISA kit. However we do have each reagent mentioned in the file below available at very reasonable prices. Be sure to check them out. For sample preparation protocols please download the file below: https://www.bosterbio.com/media/pdf/Boster_Sample_Preparation_Protocols.pdf
Q: Can this ELISA kit work on brain tissue homogenate, cell culture supernatant, saliva, urine, serum, whole blood or any other sample type?
A: In theory the ELISA kit will work for all sample types if the target protein is present at a level that falls within the linear range of the ELISA kit detection range. We guarantee the kit to work on the sample types that we have tested. If you want dilution ratio suggestions on these sample types please contact our technical support. For sample types that we have not tested for, we suggest you run pilot experiments to decide the optimal sample dilution.
Q: Can this ELISA kit react with the pro-form of the target protein? Can this ELISA kit react with an isoform of the protein?
A: In general, unless otherwise specified, the ELISA kit is pan-specific, meaning that it will react with all different forms of the target protein if they share the majority of the target protein's sequence. The capture and detection antibodies are reactive to the entire sequence of the standard protein. You can find the sequence information of the standard protein in the "immunogen" section. For more information about the specificity of the kit for your particular experiment, please contact our techincal support.
Q: Can this ELISA kit react with human, mouse, rat or other species?
A: If the kit is reactive to another commonly used species (human mouse and or rat) we would have listed it as a separate product. If you want to check cross reactivity to a species that is not included in the 3 species listed above, please contact our technical support for more information. As a rule of thumb, if the sequences are 90%+ indentical, there is a high chance of cross reactivity for your species of interest.
Q: What are some alternative names that could be used to describe this product?
A: Some common names include but are not limited to rat vegf a elisa kit, rat vegfa elisa kit