Rat IGF-1 PicoKine™ ELISA Kit

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Datasheet

Protocols

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SKU EK0377
Size 96wells/kit, with removable strips.
Reactivity Rat
Sample Type cell culture supernates, cell lysates, serum and plasma (heparin, EDTA).
Sensitivity <5pg/ml
Assay Range 62.5pg/ml-4000pg/ml

Overview

Product Name Rat IGF-1 PicoKine™ ELISA Kit
SKU/Catalog Number EK0377
Storage & Handling Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles(Shipped with wet ice.)
Size 96wells/kit, with removable strips.
Description Sandwich High Sensitivity ELISA kit for Quantitative Detection of Rat IGF-1. 96wells/kit, with removable strips.
Cite This Product Rat IGF-1 PicoKine™ ELISA Kit (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK0377)
Sample Type cell culture supernates, cell lysates, serum and plasma (heparin, EDTA).. Anticoagulant(s): heparin or EDTA
*The recommended anticoagulants are proven to not block the antibody binding sites on the target antigen. Please do not collect blood sample with other anticoagulants thata are not specified above or contact us to check for feasibility.
Sensitivity <5pg/ml
Assay Range 62.5pg/ml-4000pg/ml
Immunogen Expression system for standard: E.coli; Immunogen sequence: G49-A118
Reactivity Rat
Cross Reactivity There is detectable cross-reactivity with IGF-2< 1%.

Assay Details

Kit Components

Catalog numberDescriptionQuantity
EK0377-CAP96-well plate precoated with anti-Rat Igf1 antibody1
EK0377-STlyophilized recombinant Rat Igf1 standard10ng/tube
EK0377-DAbiotinylated anti-Rat Igf1 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

Materials Required But Not Provided

  • Microplate reader in standard size.
  • Automated plate washer.
  • Adjustable pipettes and pipette tips. Multichannel pipettes are recommended in the condition of large amount of samples in the detection.
  • Clean tubes and Eppendorf tubes.
  • Washing buffer (neutral PBS or TBS).
  • Preparation of 0.01M TBS: Add 1.2g Tris, 8.5g NaCl; 450μl of purified acetic acid or 700μl of concentrated hydrochloric acid to 1000ml H2
  • Preparation of 0.01 M PBS: Add 8.5g sodium chloride, 1.4g Na O and adjust pH to 7.2-7.

Typical Data Obtained from Rat IGF-1 PicoKine™ ELISA Kit

(TMB reaction incubate at 37°C for 20-25min)

Concentration(pg/ml)04000200040002000400020004000
O.D.0.0230.0800.1410.2580.6091.2331.6342.085

Intra/Inter Assay Precision

Intra-Assay PrecisionInter-Assay Precision
Sample123123
n161616242424
Mean(pg/ml)18575418741867641861
Standard deviation9.9956.5580.5811.1669.5294.91
CV(%)5.4%7.5%4.3%6%9.1%5.1%

Reproducibility

Three samples with differing target protein concentrations were assayed using four different lots to measure the CV% lot to lot variance.

Reproducibility

To assay reproducibility, three samples with differing target protein concentrations were assayed using four different lots.

LotsLot1 (pg/ml)Lot2 (pg/ml)Lot3 (pg/ml)Lot4 (pg/ml)Mean (pg/ml)Standard DeviationCV (%)
Sample 11851771731941828.044.4%
Sample 275468870570871324.453.4%
Sample 31874177819071705181679.74.3%
*number of samples for each test n=16.

*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.

Target Info

Protein Target Info (Source: Uniprot.org)

Uniprot Id P08025
Gene Name Igf1
Protein Name Insulin-like growth factor I
Alternative Names Insulin-like growth factor I;IGF-I;Somatomedin;Igf1;Igf-1;
Subcellular Localization Secreted.
Molecular Weight 17079 MW

*if product is indicated to react with multiple species, protein info is based on the human gene.

Ontology

Protein Function The insulin-like growth factors, isolated from plasma, are structurally and functionally related to insulin but have a much higher growth-promoting activity. May be a physiological regulator of [1-14C]-2-deoxy-D-glucose (2DG) transport and glycogen synthesis in osteoblasts. Stimulates glucose transport in rat bone-derived osteoblastic (PyMS) cells and is effective at much lower concentrations than insulin, not only regarding glycogen and DNA synthesis but also with regard to enhancing glucose uptake. May play a role in synapse maturation (By similarity). .
Background Insulin-like growth factor 1(IGF-1) that was once called somatomedin C, is a polypeptide protein hormone similar in molecular structure to insulin. It plays an important role in childhood growth and continues to have anabolic effects in adults. Human IGF1 is a single chain 70-amino acid polypeptide cross-linked by 3 disulfide bridges, with a calculated molecular mass of 7.6 kD. The IGF1 gene, mapped on 12q22-q24.1, contains 5 exons. Exons 1-4 encode the 195-amino acid precursor(IGF1B), and exons 1, 2, 3, and 5 encode the 153-residue peptide(IGF1A). The structure of IGF1 resembles that of IGF2. And the IGF1 and IGF2 genes have complex structures with multiple promoters. The expression of both genes is regulated at the levels of transcription, RNA processing, and translation. IGF-1 is produced primarily by the liver as an endocrine hormone as well as in target tissues in a paracrine/autocrine fashion. Moreover, approximately 98% of IGF-1 is always bound to one of 6 binding proteins(IGF-BP). Furthermore, IGF-1 is one of the most potent natural activators of the AKT signaling pathway, a stimulator of cell growth and multiplication and a potent inhibitor of programmed cell death.

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Troubleshooting

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Publications

Yang H, Wu S, Feng R, Huang J, Liu L, Liu F, Chen Y. Stem Cell Res Ther. 2017 Nov 21;8(1):267. doi: 10.1186/s13287-017-0718-8. Vitamin C plus hydrogel facilitates bone marrow stromal cell-mediated endometrium regeneration in rats
PubMed ID29157289
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 activating JNK signal.
PubMed ID23667638
Aksu I, Baykara B, Kiray M, Gurpinar T, Sisman Ar, Ekerbicer N, Tas A, Gokdemir-Yazar O, Uysal N. Biotech Histochem. 2013 May;88(3-4):194-201. Doi: 10.3109/10520295.2012.758311. Epub 2013 Jan 21. Serum Igf-1 Levels Correlate Negatively To Liver Da...
PubMed ID23331186
Ozdemir D, Aksu I, Baykara B, Ates M, Sisman Ar, Kiray M, Buyuk A, Uysal N. Toxicol Ind Health. 2016 Jan;32(1):39-46. Doi: 10.1177/0748233713498439. Epub 2013 Aug 1. Effects Of Administration Of Subtoxic Doses Of Acetaminophen On Liver And Blood L...
PubMed ID23907830
Baykara B, Aksu I, Buyuk E, Kiray M, Sisman Ar, Baykara B, Dayi A, Tas A, Ozdemir D, Arda Mn, Uysal N. Biotech Histochem. 2013 Jul;88(5):250-7. Doi: 10.3109/10520295.2013.769630. Epub 2013 Mar 13. Progesterone Treatment Decreases Traumatic Brain I...
PubMed ID23480228

Customer Q&As

Q: Does the TMB color developing agent contain H2O2?
A: Yes, the TMB color developing agent contain H2O2.
Q: Does this ELISA kit contain any product produced in humans or primates?
Keywords: component, ingredient
A: None of the components in our ELISA kits are produced in humans or primates.
Q: What is the volume of the recombinant protein control? What is its shelf life?
Keywords: expiration, storage, temperature, size
A: The volume of the control is around 100pg. If unopened, the shelf life of the control is the same as the whole kit - "Store at 4˚C for 6 months, at -20˚C for 12 months." The reconstituted control can be stored at -20˚C for 2 days.
Q: Will it be okay to run the experiment if I accidentally used the wrong buffer (e.g. sample diluent buffer) for antibody dilution instead of the antibody diluent buffer? Keywords: dilution, replace, substitute, sample buffer
A: Using the sample diluent buffer for antibody dilution instead of the antibody diluent buffer will negatively affect the test result to some extent. The values of both standard and sample might be lower than the normal values.
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: 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: 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: 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%+ identical, 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 igf1 elisa kit, rat igf-i elisa kit