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- Table of Contents
COMT antibody (PB9539) performs well in Flow Cytometry, IHC, WB and shows reactivity with Human, Mouse, Rat.
- Validated for inter-lot consistency, specificity, and reproducibility
- Committed to quality since 1993
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Flow Cytometry analysis of U251 cells using anti-COMT antibody (PB9539).
Overlay histogram showing U251 cells stained with PB9539 (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-COMT Antibody (PB9539, 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 U251 cells stained with PB9539 (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-COMT Antibody (PB9539, 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 COMT? 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-COMT Antibody Picoband®
COMT antibody
| Reactive Species | Host | Application |
|---|---|---|
| Human, Mouse, Rat | Rabbit | Flow Cytometry, IHC, WB |
Tested Applications
COMT antibody was positively detected by WB in:
human SH-SY5Y whole cell, human HepG2 whole cell, rat brain tissue, rat liver tissue, rat C6 whole cell, mouse brain tissue, mouse liver tissue, mouse Neuro-2a whole cell
Suggested blocking solution with 5% non-fat milk or BSA; (*)Recommended protein loading: 20-40 ug per lane
COMT antibody was positively detected by IHC in:
Mhuman human breast cancer tissue
Use EDTA pH 8.0 for antigen retrieval; (*) citrate buffer pH 6.0 is an alternative.
COMT antibody was positively detected by FC in:
U251 Cell
Recommend Dilution
Application
Dilution
Species
Western blot
0.1-0.5μg/ml
Human, Mouse, Rat
Immunohistochemistry (Paraffin-embedded Section)
2-5μg/ml
Human
Flow Cytometry(Fixed)
1-3 μg/1x106 cells
Human
* 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.
Product Information
Product Name
Anti-COMT Antibody Picoband®
View all COMT Antibodies
View all COMT Antibodies
Form
Lyophilized
Uniprot
Gene ID
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.
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.
*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
E.coli-derived human COMT recombinant protein (Position: G52-P271). Human COMT shares 81.9% and 81% amino acid (aa) sequence identity with mouse and rat COMT, respectively.
Cross-Reactivity
No cross-reactivity with other proteins
Reconstitution
Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
Observed Molecular Weight
26 kDa
Calculated Molecular Weight
30.0 kDa
Background of COMT
Catechol O-methyltransferase, also called COMT, is one of the major mammalian enzymes involved in the metabolic degradation of catecholamines. This gene is mapped to 22q11.21. Catechol-O-methyltransferase catalyzes the transfer of a methyl group from S-adenosylmethionine to catecholamines, including the neurotransmitters dopamine, epinephrine, and norepinephrine. This O-methylation results in one of the major degradative pathways of the catecholamine transmitters. In addition to its role in the metabolism of endogenous substances, COMT is important in the metabolism of catechol drugs used in the treatment of hypertension, asthma, and Parkinson disease. COMT is found in two forms in tissues, a soluble form (S-COMT) and a membrane-bound form (MB-COMT). The differences between S-COMT and MB-COMT reside within the N-termini.
Cite This Product
Anti-COMT Antibody Picoband® (Boster Biological Technology, Pleasanton CA, USA, Catalog # PB9539)
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
Mouse
81%
Moderate Homology
Rat
80%
Moderate Homology
Dog
80%
Moderate Homology
Rabbit
80%
Moderate Homology
Cow
78%
Moderate Homology
Sheep
78%
Moderate Homology
Zebrafish
57%
Low homology
Homology ≥ 90%High Homology
70% ≤ Homology < 90%Moderate Homology
Homology < 70%Low homology
Protocols
Western Blot protocol for COMT antibody
Immunohistochemistry (IHC) protocol for COMT antibody
Flow Cytometry (FC) protocol for COMT antibody
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Product Promise
We promise Anti-COMT Antibody Picoband® performs excellently in relevant applications for Flow Cytometry, IHC, WB. If it doesn't perform as promised, we will refund the product. Learn more
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PB9539
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
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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