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- Table of Contents
SP1 antibody (RP1072) performs well in WB and shows reactivity with Human, Rat.
- Validated for inter-lot consistency, specificity, and reproducibility
- Committed to quality since 1993
- Over 1 Publication
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Western blot analysis of SP1 using anti-SP1 antibody (RP1072).
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 Hela whole cell lysates,
Lane 2: human CACO-2 whole cell lysates,
Lane 3: human Jurkat whole cell lysates,
Lane 4: human COLO320 whole lysates,
Lane 5: rat testis tissue 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-SP1 antigen affinity purified polyclonal antibody (Catalog # RP1072) 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 SP1 at approximately 90 kDa. The expected band size for SP1 is at 90 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 Hela whole cell lysates,
Lane 2: human CACO-2 whole cell lysates,
Lane 3: human Jurkat whole cell lysates,
Lane 4: human COLO320 whole lysates,
Lane 5: rat testis tissue 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-SP1 antigen affinity purified polyclonal antibody (Catalog # RP1072) 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 SP1 at approximately 90 kDa. The expected band size for SP1 is at 90 kDa.
Designing a Western blot for SP1? The guide covers the expected band size, antibodies backed by real blot images, the controls to run alongside, and protocols taken from published papers.
Open the SP1 Western Blot GuideBundle Save
Anti-Transcription factor Sp1 SP1 Antibody Picoband®
SP1 antibody
| Reactive Species | Host | Application |
|---|---|---|
| Human, Rat | Rabbit | WB |
Tested Applications
SP1 antibody was positively detected by WB in:
human Hela whole cell, human CACO-2 whole cell, human Jurkat whole cell, human COLO320 whole, rat testis tissue
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, Rat
* 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
Rat
Tested
Rabbit
Predicted
Bovine
Predicted
Sheep
Predicted
Dog
Predicted
Monkey
Predicted
Mouse
Predicted
Product Information
Product Name
Anti-Transcription factor Sp1 SP1 Antibody Picoband®
View all SP1 Antibodies
View all SP1 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, 0.2mg Na2HPO4, 0.05 mg NaN3.
Clonality
Polyclonal
Isotype
Rabbit IgG
Immunogen
A synthetic peptide corresponding to a sequence at the C-terminus of human SP1, different from the related mouse and rat sequences by two 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
90 kDa
Calculated Molecular Weight
80.7 kDa
Background of SP1
Transcription factor Sp1, also known as specificity protein 1* is a protein that in humans is encoded by the SP1 gene. The protein encoded by this gene is a zinc finger transcription factor that binds to GC-rich motifs of many promoters. The encoded protein is involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling. Post-translational modifications such as phosphorylation, acetylation, glycosylation, and proteolytic processing significantly affect the activity of this protein, which can be an activator or a repressor. Three transcript variants encoding different isoforms have been found for this gene.
Cite This Product
Anti-Transcription factor Sp1 SP1 Antibody Picoband® (Boster Biological Technology, Pleasanton CA, USA, Catalog # RP1072)
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
Rabbit
100%
High Homology
Cow
100%
High Homology
Sheep
100%
High Homology
Dog
100%
High Homology
Monkey
100%
High Homology
Mouse
94%
High Homology
Rat
94%
High Homology
Drosophila
15%
Low homology
Homology ≥ 90%High Homology
70% ≤ Homology < 90%Moderate Homology
Homology < 70%Low homology
Protocols
Western Blot protocol for SP1 antibody
Publications
Application:
miR-182 aids in receptive endometrium development in dairy goats by down-regulating PTN expression
PMID: 28678802
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Product Promise
We promise Anti-Transcription factor Sp1 SP1 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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RP1072
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 30, 2026