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- Table of Contents
SPP1 antibody (PA1431) performs well in WB and shows reactivity with Human.
- Validated for inter-lot consistency, specificity, and reproducibility
- Committed to quality since 1993
- Over 1 Publication
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Western blot analysis of OPN/SPP1 using anti-OPN/SPP1 antibody (PA1431).
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 30 ug of sample under reducing conditions.
Lane 1: human HepG2 whole cell lysates.
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-OPN/SPP1 antigen affinity purified polyclonal antibody (Catalog # PA1431) 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 OPN/SPP1 at approximately 65 kDa. The expected band size for OPN/SPP1 is at 35 kDa.
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 30 ug of sample under reducing conditions.
Lane 1: human HepG2 whole cell lysates.
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-OPN/SPP1 antigen affinity purified polyclonal antibody (Catalog # PA1431) 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 OPN/SPP1 at approximately 65 kDa. The expected band size for OPN/SPP1 is at 35 kDa.
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Anti-Osteopontin/SPP1 Antibody Picoband®
SPP1 antibody
| Reactive Species | Host | Application |
|---|---|---|
| Human | Rabbit | WB |
Tested Applications
SPP1 antibody was positively detected by WB in:
human HepG2 whole cell
Suggested blocking solution with 5% non-fat milk or BSA; (*)Recommended protein loading: 20-40 ug per lane
Recommend Dilution
Application
Dilution
Species
Western blot
0.1-0.5μg/ml
Human
* It is recommended to optimize the amount of this reagent in each experimental system to achieve the best results.
Reactive Data
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WB
Human
Tested
Monkey
Predicted
Bovine
Predicted
Sheep
Predicted
Dog
Predicted
Product Information
Product Name
Anti-Osteopontin/SPP1 Antibody Picoband®
View all SPP1 Antibodies
View all SPP1 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 4 mg Trehalose, 0.9 mg NaCl and 0.2 mg Na2HPO4.
Clonality
Polyclonal
Isotype
Rabbit IgG
Immunogen
A synthetic peptide corresponding to a sequence at the N-terminus of human Osteopontin, different from the related mouse sequence by six amino acids.
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
65 kDa
Calculated Molecular Weight
35.4 kDa
Background of SPP1
Osteopontin (OPN) also called urinary stone protein, secreted phosphoprotein 1 (SPP1), bone sialoprotein, and early T lymphocyte activation 1 (ETA1). Osteopontin is a phosphorylated glycoprotein secreted to the mineralizing extrOPNllular matrix by osteoblasts during bone development. Osteopontin is presumably involved in stone formation as stone matrix. The deduced protein sequence reveals a 317-amino acid protein (34,982 Da) containing a 16-amino acid hydrophobic signal sequence and a 33,352-Da protein destines to undergo extensive post-translational modifications before being secreted from the cell. The gene is located on human chromosome 4. The standard product used in this kit is recombinant human OPN, consisting of 17-314 amino acid sequence with the molecular mass of 32.9KDa. As a result of glycosylation, the molecular mass is 60-65KDa.
Cite This Product
Anti-Osteopontin/SPP1 Antibody Picoband® (Boster Biological Technology, Pleasanton CA, USA, Catalog # PA1431)
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
95%
High Homology
Cow
90%
High Homology
Sheep
90%
High Homology
Dog
90%
High Homology
Rabbit
85%
Moderate Homology
Rat
70%
Moderate Homology
Mouse
65%
Low homology
Homology ≥ 90%High Homology
70% ≤ Homology < 90%Moderate Homology
Homology < 70%Low homology
Protocols
Western Blot protocol for SPP1 antibody
Publications
Application:
Species:
Transcription factor Runx2 changes the expression of some matricellular proteins in metastatic breast cancer cells
Published: 2022-04-19
Journal: MOLECULAR BIOLOGY REPORTS
Application: WB
Impact Factor: 2.74
Species: Human
PMID: 35441354
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Product Promise
We promise Anti-Osteopontin/SPP1 Antibody Picoband® performs excellently in relevant applications for WB. If it doesn't perform as promised, we will refund the product. Learn more
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PA1431
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 14, 2026