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- Table of Contents
XAF1 antibody (A03432-1) performs well in ELISA, Flow Cytometry, IHC, WB and shows reactivity with Human.
- Validated for inter-lot consistency, specificity, and reproducibility
- Committed to quality since 1993
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Flow Cytometry analysis of U87 cells using anti-XAF1 antibody (A03432-1).
Overlay histogram showing U87 cells stained with A03432-1 (Blue line). To facilitate intracellular staining, cells were fixed with 4% paraformaldehyde and permeabilized with permeabilization buffer. The cells were blocked with 10% normal goat serum. And then incubated with rabbit anti-XAF1 Antibody (A03432-1, 1 μg/1x106 cells) for 30 min at 20°C. DyLight®488 conjugated goat anti-rabbit IgG (BA1127, 5-10 μg/1x106 cells) was used as secondary antibody for 30 minutes at 20°C. Isotype control antibody (Green line) was rabbit IgG (1 μg/1x106) used under the same conditions. Unlabelled sample without incubation with primary antibody and secondary antibody (Red line) was used as a blank control.
Overlay histogram showing U87 cells stained with A03432-1 (Blue line). To facilitate intracellular staining, cells were fixed with 4% paraformaldehyde and permeabilized with permeabilization buffer. The cells were blocked with 10% normal goat serum. And then incubated with rabbit anti-XAF1 Antibody (A03432-1, 1 μg/1x106 cells) for 30 min at 20°C. DyLight®488 conjugated goat anti-rabbit IgG (BA1127, 5-10 μg/1x106 cells) was used as secondary antibody for 30 minutes at 20°C. Isotype control antibody (Green line) was rabbit IgG (1 μg/1x106) used under the same conditions. Unlabelled sample without incubation with primary antibody and secondary antibody (Red line) was used as a blank control.
Designing a Western blot or IHC for XAF1? The guides cover the expected band size and staining pattern, antibodies backed by real images, the controls to run, and protocols from published papers.
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Anti-XAF1 Antibody Picoband®
XAF1 antibody
| Reactive Species | Host | Application |
|---|---|---|
| Human | Rabbit | ELISA, Flow Cytometry, IHC, WB |
Tested Applications
XAF1 antibody was positively detected by WB in:
human placenta tissue, human 293T whole cell, human Jurkat whole cell
Suggested blocking solution with 5% non-fat milk or BSA; (*)Recommended protein loading: 20-40 ug per lane
XAF1 antibody was positively detected by IHC in:
human lung cancer tissue, human placenta tissue, human thyroid cancer tissue
Use EDTA pH 8.0 for antigen retrieval; (*) citrate buffer pH 6.0 is an alternative.
XAF1 antibody was positively detected by FC in:
U87 cell
Recommend Dilution
Application
Dilution
Species
Western blot
0.25-0.5 μg/ml
Human
Immunohistochemistry(Paraffin-embedded Section)
2-5 μg/ml
Human
Flow Cytometry (Fixed)
1-3 μg/1x106 cells
Human
ELISA
0.1-0.5 μg/ml
-
* It is recommended to optimize the amount of this reagent in each experimental system to achieve the best results.
Note: For flow cytometry (FCM), suitable for fixed cells only. Not suitable for FACS or surface flow cytometry using live cells.
Reactive Data
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WB
IHC
IF
ELISA
Human
Tested
Tested
Recommend
Recommend
Monkey
Predicted
Predicted
Predicted
Predicted
Product Information
Product Name
Anti-XAF1 Antibody Picoband®
View all XAF1 Antibodies
View all XAF1 Antibodies
Form
Lyophilized
Uniprot
Gene ID
Storage & Handling
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 freezing and thawing.
Host
Rabbit
Contents
Each vial contains 4 mg Trehalose, 0.9 mg NaCl, 0.2 mg Na2HPO4.
Clonality
Polyclonal
Isotype
Rabbit IgG
Immunogen
E.coli-derived human XAF1 recombinant protein (Position: Q197-S301).
Cross-Reactivity
No cross-reactivity with other proteins.
Reconstitution
Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
Observed Molecular Weight
35 kDa
Calculated Molecular Weight
34.6 kDa
Background of XAF1
XAF1 also called XIAP-associated factor 1,antagonizes the anticaspase activity of XIAP and may be important in mediating apoptosis resistance in cancer cells. By genomic sequence analysis, the XAF1 gene contains 7 exons spanning 18 kb. Southern blot analysis suggested that XAF1 is a single-copy gene. The XAF1 gene is mapped on 17p13.1. Fluorescence microscopy demonstrated nuclear expression of XAF1, in contrast to the cytoplasmic expression of XIAP. Functional analysis indicated that XAF1 reverses the XIAP-mediated inhibition of CASP3 and its protection against apoptosis. Northern blot analysis detected wide expression of 3.9-, 4.5-, 6.0-, and 7.0-kb XAF1 transcripts, with highest levels in heart and ovary and lowest levels in brain and testis. Antisense experiments determined that loss of XAF1 expression enhances resistance to apoptosis. Alteration in XAF1 and XIAP RNA expression levels may lead to increased apoptotic resistance and proliferation due to unregulated XIAP function in cancer cells.
Cite This Product
Anti-XAF1 Antibody Picoband® (Boster Biological Technology, Pleasanton CA, USA, Catalog # A03432-1)
Antibody Homology Across Species
The results generated by this homology analysis tool for commonly used animal species are shown below. For unlisted species, please refer to the homology analysis between the immunogen sequence and the corresponding species.
A homology of ≥90% is recommended. Generally, higher homology indicates a greater potential for cross-species reactivity. However, protein expression levels may vary among different species, tissues, and cell types. Therefore, the homology analysis results are for reference only and do not guarantee antibody cross-reactivity or experimental performance.
Human
100%
High Homology
Monkey
94%
High Homology
Sheep
64%
Low homology
Cow
63%
Low homology
Rat
50%
Low homology
Rabbit
50%
Low homology
Dog
46%
Low homology
Mouse
45%
Low homology
Zebrafish
17%
Low homology
Homology ≥ 90%High Homology
70% ≤ Homology < 90%Moderate Homology
Homology < 70%Low homology
Protocols
Western Blot protocol for XAF1 antibody
Immunohistochemistry (IHC) protocol for XAF1 antibody
Flow Cytometry (FC) protocol for XAF1 antibody
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Product Promise
We promise Anti-XAF1 Antibody Picoband® performs excellently in relevant applications for ELISA, Flow Cytometry, IHC, WB. If it doesn't perform as promised, we will refund the product. Learn more
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A03432-1
Buy one primary antibody get one 0.5ml HRP or Biotin secondary antibody for free.
*Sample sizes are prepared on demand and will take extra lead time. (cannot be conjugated)
$370.00
Troubleshooting
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We promise all of our products perform as described in datasheets.
This product is for Research Use Only. Not for use in diagnostic procedures.
Update date:
Oct 19, 2026