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Product Info Summary
| SKU: | PB9711 |
|---|---|
| Size: | 100 μg/vial |
| Reactive Species: | Human |
| Host: | Rabbit |
| Application: | ELISA, WB |
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Product info
Product Name
Anti-IGFBP5 Antibody Picoband®
SKU/Catalog Number
PB9711
PB0749 is an alternative SKU for this antibody, used in previous lots.
Size
100 μg/vial
Form
Lyophilized
Description
Boster Bio Anti-IGFBP5 Antibody Picoband® catalog # PB9711. Tested in ELISA, WB applications. This antibody reacts with Human. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.
Storage & Handling
Store at -20˚C for one year from date of receipt. After reconstitution, at 4˚C for one month. It can also be aliquotted and stored frozen at -20˚C for six months. Avoid repeated freeze-thaw cycles.
Cite This Product
Anti-IGFBP5 Antibody Picoband® (Boster Biological Technology, Pleasanton CA, USA, Catalog # PB9711)
Host
Rabbit
Contents
Each vial contains antibody formulated with stabilizing components, 0.9 mg NaCl, 0.2 mg Na2HPO4, and 0.05 mg NaN3.
*This antibody is supplied in a stabilized formulation.
Compatibility with conjugation reactions depends on the chemistry of the conjugation method used.
For conjugation methods that are not compatible with the stabilizing components present in this formulation, a carrier-free antibody format is required.
Clonality
Polyclonal
Isotype
Rabbit IgG
Immunogen
A synthetic peptide corresponding to a sequence at the N-terminus of human IGFBP5, different from the related mouse and rat sequences by two amino acids.
Cross-reactivity
No cross-reactivity with other proteins
Reactive Species
PB9711 is reactive to IGFBP5 in Human
Observed Molecular Weight
23 kDa
Calculated molecular weight
30.6 kDa
Background of IGFBP5
Insulin-like growth factor-binding protein 5 is a protein that in humans is encoded by the IGFBP5 gene. The expression of IGFBP5 by stable transfection and adenovirus-mediated infection is inhibitory to growth in 2 human breast cancer cell lines. IGFBP5 expression leads to G2/M cell cycle arrest and apoptosis. Stable expression of IGFBP5 in the breast cancer cell lines also inhibits the formation and growth of tumors following injection in athymic mice. It is concluded that IGFBP5 is a growth inhibitor and proapoptotic agent in breast cancer cells. Additionally, IGFBP-5 is expressed by fibroblasts, myoblasts and osteoblasts, making it the predominant IGFBP found in bone extracts. It has a strong affinity for hydroxyapatite, allowing it to bind to bone cells. When bound to extracellular matrix, IGFBP-5 is protected from proteolysis and potentiates IGF activity, but when it is soluble, IGFBP-5 is cleaved to a biologically inactive 21 kDa fragment (1, 2).
Antibody Validation
Boster validates all antibodies on WB, IHC, ICC, Immunofluorescence, and ELISA with known positive control and negative samples to ensure specificity and high affinity, including thorough antibody incubations.
Application & Images
Applications
PB9711 is guaranteed for ELISA, WB Boster Guarantee
Assay Dilutions Recommendation
The recommendations below provide a starting point for assay optimization. The actual working concentration varies and should be decided by the user.
ELISA, 0.1-0.5μg/ml, -
Western blot, 0.1-0.5μg/ml, Human
Positive Control
WB: U20S Whole Cell, HELA Whole Cell
Validation Images & Assay Conditions
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Western blot analysis of IGFBP5 using anti-IGFBP5 antibody (PB9711).
Electrophoresis was performed on a 5-20% SDS-PAGE gel at 70V (Stacking gel) / 90V (Resolving gel) for 2-3 hours. The sample well of each lane was loaded with 40ug of sample under reducing conditions.
Lane 1: U20S Whole Cell Lysate,
Lane 2: HELA Whole Cell Lysate.
After electrophoresis, proteins were transferred to a nitrocellulose membrane at 150 mA for 50-90 minutes. Blocked the membrane with 5% non-fat milk/TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-IGFBP5 antigen affinity purified polyclonal antibody (Catalog # PB9711) at 0.5 μg/mL overnight at 4°C, then washed with TBS-0.1%Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:5000 for 1.5 hour at RT. The signal is developed using an Enhanced Chemiluminescent detection (ECL) kit (Catalog # EK1002) with Tanon 5200 system. A specific band was detected for IGFBP5 at approximately 23 kDa. The expected band size for IGFBP5 is at 31 kDa.
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Real-time PCR analysis of upregulated or downregulated gene expression in response to HIF-1alpha (A) Aliquots of the same RNA preparations used for microarray hybridization were analyzed by quantitative real-time PCR . In three pairwise comparisons, the upregulation-folds of IGFBP5, IRS4, TNFAIP6, SOCS1, IL-6, VEGF-A mRNA expression were calculated. The mean and standard error are shown (p < 0.05). (B) Aliquots of the same RNA preparations used for microarray hybridization were analyzed by quantitative real-time PCR. In three pairwise comparisons, the downregulation-folds of IGFBP3, ZNF569, SOCS2, SIRPa and XRCC4 mRNA were calculated. The mean and standard error are shown (p < 0.05).
Index in PubMed under a CC BY license. PMID: 20003295
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Western blot analysis of regulation of protein expression by HIF-1alpha in NCI-H446 cells . According to different treatments, all the cells were divided into four groups: control group (the cells cultured under normoxic conditions of 20% O2), Ad5-HIF-1alpha transfection group, hypoxia group (the cells cultured under normoxic conditions of 1% O2) and Ad5-siHIF-1alpha transfection group (after transfection, the cells were cultured under normoxic conditions of 1% O2). (A) Western blot analysis for IGFBP5 protein expressed by the cells of four groups. (B) Western blot analysis for SOCS1 protein expressed by the cells of four groups. (C) Densitometric analysis of the IGFBP5 and SOCS1 bands compared to the corresponding β-actin bands (*p < 0.05 expression of IGFBP5 or SOCS1 protein in Ad5-HIF-1alpha group vs. control group; ** p < 0.05 expression of IGFBP5 or SOCS1 protein in hypoxia group vs. control group; *** p < 0.05 expression of IGFBP5 or SOCS1 protein in Ad5-siHIF-1alpha group vs. control group). (D) Western blot analysis for IL-6 protein expressed by the cells of four groups. (E) Western blot analysis for STAT3 protein expressed by the cells of four groups. (F) Densitometric analysis of the IL-6 and STAT3 bands compared to the corresponding β-actin bands (*p < 0.05 expression of IL-6 or STAT3 protein in Ad5-HIF-1alpha group vs. Ad5-siHIF-1alpha group group.)
Index in PubMed under a CC BY license. PMID: 20003295
Specific Publications For Anti-IGFBP5 Antibody Picoband® (PB9711)
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4 Customer Q&As for Anti-IGFBP5 Antibody Picoband®
Question
Does PB9711 anti-IGFBP5 antibody work on parafin embedded sections? If so, which fixation method do you recommend we use (PFA, paraformaldehyde, other)?
Verified Customer
Verified customer
Asked: 2020-04-09
Answer
It shows on the product datasheet, PB9711 anti-IGFBP5 antibody as been tested on ELISA. It is best to use PFA for fixation because it has better tissue penetration ability. PFA needs to be prepared fresh before use. Long term stored PFA turns into formalin, as the PFA molecules congregate and become formalin.
Boster Scientific Support
Answered: 2020-04-09
Question
We are currently using anti-IGFBP5 antibody PB9711 for human tissue, and we are satisfied with the ELISA results. The species of reactivity given in the datasheet says human. Is it likely that the antibody can work on pig tissues as well?
Verified Customer
Verified customer
Asked: 2017-08-18
Answer
The anti-IGFBP5 antibody (PB9711) has not been validated for cross reactivity specifically with pig tissues, though there is a good chance of cross reactivity. We have an innovator award program that if you test this antibody and show it works in pig you can get your next antibody for free. Please contact me if I can help you with anything.
Boster Scientific Support
Answered: 2017-08-18
Question
Thanks for helping with my inquiry over the phone. Here are the WB image, lot number and protocol we used for plasma using anti-IGFBP5 antibody PB9711. Let me know if you need anything else.
L. Krishna
Verified customer
Asked: 2014-08-26
Answer
Thank you for the data. You have provided everything we needed. Our lab team are working to resolve your inquiry as quickly as possible, and we appreciate your patience and understanding! Please let me know if there is anything you need in the meantime.
Boster Scientific Support
Answered: 2014-08-26
Question
Would anti-IGFBP5 antibody PB9711 work on primate ELISA with placenta?
K. Krishna
Verified customer
Asked: 2013-08-14
Answer
Our lab technicians have not tested anti-IGFBP5 antibody PB9711 on primate. You can run a BLAST between primate and the immunogen sequence of anti-IGFBP5 antibody PB9711 to see if they may cross-react. If the sequence homology is close, then you can perform a pilot test. Keep in mind that since we have not validated primate samples, this use of the antibody is not covered by our guarantee. However we have an innovator award program that if you test this antibody and show it works in primate placenta in ELISA, you can get your next antibody for free.
Boster Scientific Support
Answered: 2013-08-14
