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- Table of Contents
C1QBP antibody (PB9921) performs well in Flow Cytometry, IF, IHC, IHC-F, ICC, WB and shows reactivity with Human, Mouse, Rat.
- Validated for inter-lot consistency, specificity, and reproducibility
- Committed to quality since 1993
- Over 2 Publications
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Flow Cytometry analysis of U20S cells using anti-GC1q R antibody (PB9921).
Overlay histogram showing U20S cells stained with PB9921 (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-GC1q R Antibody (PB9921,1μg/1x106 cells) for 30 min at 20°C. DyLight®488 conjugated goat anti-rabbit IgG (BA1127, 5-10μg/1x106 cells) was used as secondary antibody for 30 minutes at 20°C. Isotype control antibody (Green line) was rabbit IgG (1μg/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 U20S cells stained with PB9921 (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-GC1q R Antibody (PB9921,1μg/1x106 cells) for 30 min at 20°C. DyLight®488 conjugated goat anti-rabbit IgG (BA1127, 5-10μg/1x106 cells) was used as secondary antibody for 30 minutes at 20°C. Isotype control antibody (Green line) was rabbit IgG (1μg/1x106) used under the same conditions. Unlabelled sample without incubation with primary antibody and secondary antibody (Red line) was used as a blank control.
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Anti-GC1q R/C1QBP Antibody Picoband®
C1QBP antibody
| Reactive Species | Host | Application |
|---|---|---|
| Human, Mouse, Rat | Rabbit | Flow Cytometry, IF, IHC, IHC-F, ICC, WB |
Tested Applications
C1QBP antibody was positively detected by WB in:
human Hela whole cell, human SW620 whole cell, human 293T whole cell, human A431 whole cell, human HeLa- WT whole cell, human HeLa-C1QBP KO whole cell, rat brain tissue, rat spleen tissue, mouse brain tissue, mouse spleen tissue
Suggested blocking solution with 5% non-fat milk or BSA; (*)Recommended protein loading: 20-40 ug per lane
C1QBP antibody was positively detected by IHC in:
mouse spleen tissue, rat spleen tissue, human tonsil tissue
Use TE buffer pH 9.0 for antigen retrieval; (*) citrate buffer pH 6.0 is an alternative.
C1QBP antibody was positively detected by ICC/IF in:
U20S cell
C1QBP antibody was positively detected by FC in:
U20S cell
Recommend Dilution
Application
Dilution
Species
Western blot
0.1-0.5μg/ml
Human, Mouse, Rat
Immunohistochemistry (Paraffin-embedded Section)
0.5-1μg/ml
Human, Mouse, Rat
Immunohistochemistry (Frozen Section)
0.5-1μg/ml
Human
Immunocytochemistry/Immunofluorescence
2μg/ml
Human
Flow Cytometry (Fixed)
1-3μg/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), validated for fixed cells only. Not validated for FACS or surface flow cytometry using live cells.
Reactive Data
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WB
IHC
IF
Human
Tested
Tested
Recommend
Rat
Tested
Tested
Recommend
Mouse
Tested
Tested
Recommend
Monkey
Predicted
Predicted
Predicted
Dog
Predicted
Predicted
Predicted
Product Information
Product Name
Anti-GC1q R/C1QBP Antibody Picoband®
View all C1QBP Antibodies
View all C1QBP 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 GC1q R recombinant protein (Position: E190-Q282). Human GC1q R shares 92.5% and 93.5% amino acid (aa) sequence identity with mouse and rat GC1q R, 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
35 kDa
Calculated Molecular Weight
31.4 kDa
Background of C1QBP
Complement component 1 Q subcomponent-binding protein, mitochondrial is a protein that in humans is encoded by the C1QBP gene. This gene is mapped to 17p13.3 in a region conserved with mouse chromosome 11. The human complement subcomponent C1q associates with C1r and C1s in order to yield the first component of the serum complement system. The protein encoded by this gene is known to bind to the globular heads of C1q molecules and inhibit C1 activation. This protein has also been identified as the p32 subunit of pre-mRNA splicing factor SF2, as well as a hyaluronic acid-binding protein.
Cite This Product
Anti-GC1q R/C1QBP Antibody Picoband® (Boster Biological Technology, Pleasanton CA, USA, Catalog # PB9921)
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
97%
High Homology
Dog
95%
High Homology
Rat
94%
High Homology
Mouse
92%
High Homology
Sheep
89%
Moderate Homology
Cow
88%
Moderate Homology
Zebrafish
83%
Moderate Homology
Drosophila
40%
Low homology
Homology ≥ 90%High Homology
70% ≤ Homology < 90%Moderate Homology
Homology < 70%Low homology
Protocols
Western Blot protocol for C1QBP antibody
Immunohistochemistry (IHC) protocol for C1QBP antibody
Immunocytochemistry/Immunofluorescence (ICC/IF) protocol for C1QBP antibody
Flow Cytometry (FC) protocol for C1QBP antibody
Publications
Application:
Species:
Localization of the Complement C1q-Binding Site on Echinococcus multilocularis Calreticulin Identified by Peptide Mapping
Published: 2026-05-26
Journal: Tropical Medicine and Infectious Disease
Application: WB,IF
Impact Factor: 3.10
Species: Human
PMID: 42347531
Exploring the Role of Microglia Activation in Ischemia Stroke Based on the circDnajc1/miR-27a-5p/C1qc Signaling Axis
Published: 2025-06-07
Journal: MOLECULAR NEUROBIOLOGY
Application: IF
Impact Factor: 4.30
Species: Rat
PMID: 40483386
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Product Promise
We promise Anti-GC1q R/C1QBP Antibody Picoband® performs excellently in relevant applications for Flow Cytometry, IF, IHC, IHC-F, ICC, WB. If it doesn't perform as promised, we will refund the product. Learn more
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PB9921
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
Boster Guarantee
Guaranteed product quality
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 2, 2026