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- Table of Contents
SFTPB antibody (A03441-1) performs well in 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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Western blot analysis of SFTPB using anti-SFTPB antibody (A03441-1).
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 50ug of sample under reducing conditions.
Lane 1: human MCF-7 whole cell lysates,
Lane 2: human COLO-320 whole cell lysates,
Lane 3: human HepG2 whole cell lysates.
After Electrophoresis, proteins were transferred to a Nitrocellulose membrane at 150mA 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-SFTPB antigen affinity purified polyclonal antibody (Catalog # A03441-1) 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 1:10000 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 SFTPB at approximately 46KD. The expected band size for SFTPB is at 42KD.
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 50ug of sample under reducing conditions.
Lane 1: human MCF-7 whole cell lysates,
Lane 2: human COLO-320 whole cell lysates,
Lane 3: human HepG2 whole cell lysates.
After Electrophoresis, proteins were transferred to a Nitrocellulose membrane at 150mA 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-SFTPB antigen affinity purified polyclonal antibody (Catalog # A03441-1) 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 1:10000 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 SFTPB at approximately 46KD. The expected band size for SFTPB is at 42KD.
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Anti-Prosurfactant Protein B/SFTPB Antibody Picoband®
SFTPB antibody
| Reactive Species | Host | Application |
|---|---|---|
| Human, Mouse, Rat | Rabbit | WB |
Tested Applications
SFTPB antibody was positively detected by WB in:
human MCF-7 whole cell, human COLO-320 whole cell, 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
* 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
Bovine
Predicted
Sheep
Predicted
Monkey
Predicted
Product Information
Product Name
Anti-Prosurfactant Protein B/SFTPB Antibody Picoband®
View all SFTPB Antibodies
View all SFTPB 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 4mg Trehalose, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg NaN3.
Clonality
Polyclonal
Isotype
Rabbit IgG
Immunogen
A synthetic peptide corresponding to a sequence at the C-terminus of human SFTPB, which shares 80% amino acid (aa) sequence identity with both mouse and rat SFTPB.
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
46 kDa
Calculated Molecular Weight
42.1 kDa
Background of SFTPB
Pulmonary surfactant-associated protein B is a protein that in humans is encoded by the SFTPB gene. This gene encodes the pulmonary-associated surfactant protein B (SPB), an amphipathic surfactant protein essential for lung function and homeostasis after birth. Pulmonary surfactant is a surface-active lipoprotein complex composed of 90% lipids and 10% proteins which include plasma proteins and apolipoproteins SPA, SPB, SPC and SPD. The surfactant is secreted by the alveolar cells of the lung and maintains the stability of pulmonary tissue by reducing the surface tension of fluids that coat the lung. The SPB enhances the rate of spreading and increases the stability of surfactant monolayers in vitro. Multiple mutations in this gene have been identified, which cause pulmonary surfactant metabolism dysfunction type 1, also called pulmonary alveolar proteinosis due to surfactant protein B deficiency, and are associated with fatal respiratory distress in the neonatal period. Alternatively spliced transcript variants encoding the same protein have been identified.
Cite This Product
Anti-Prosurfactant Protein B/SFTPB Antibody Picoband® (Boster Biological Technology, Pleasanton CA, USA, Catalog # A03441-1)
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
Cow
93%
High Homology
Sheep
93%
High Homology
Monkey
93%
High Homology
Dog
87%
Moderate Homology
Mouse
80%
Moderate Homology
Rat
80%
Moderate Homology
Rabbit
80%
Moderate Homology
Drosophila
23%
Low homology
Homology ≥ 90%High Homology
70% ≤ Homology < 90%Moderate Homology
Homology < 70%Low homology
Protocols
Western Blot protocol for SFTPB antibody
Publications
Application:
Species:
3,4-dihydroxyphenylethanol suppresses irradiation-induced pulmonary fibrosis in adult rats
Published: 2015-04-01
Journal: International Journal of Clinical and Experimental Pathology
Application: IHC
Impact Factor: 1.89
Species: Rat
PMID: 26097528
The green tea extract epigallocatechin-3-gallate inhibits irradiation-induced pulmonary fibrosis in adult rats
Published: 2014-04-16
Journal: INTERNATIONAL JOURNAL OF MOLECULAR MEDICINE
Application: IHC
Impact Factor: 1.88
Species: Rat
PMID: 24736877
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Product Promise
We promise Anti-Prosurfactant Protein B/SFTPB 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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A03441-1
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
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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 4, 2026