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Product Info Summary
| SKU: | PA2105 |
|---|---|
| Size: | 100 μg/vial |
| Reactive Species: | Human |
| Host: | Rabbit |
| Application: | IHC, WB |
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Product info
Product Name
Anti-Cystatin A/CSTA Antibody Picoband®
SKU/Catalog Number
PA2105
Size
100 μg/vial
Form
Lyophilized
Description
Boster Bio Anti-Cystatin A/CSTA Antibody catalog # PA2105. Tested in IHC, WB applications. This antibody reacts with Human. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.
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.
Cite This Product
Anti-Cystatin A/CSTA Antibody Picoband® (Boster Biological Technology, Pleasanton CA, USA, Catalog # PA2105)
Host
Rabbit
Contents
Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.
Clonality
Polyclonal
Isotype
Rabbit IgG
Immunogen
A synthetic peptide corresponding to a sequence at the C-terminus of human Cystatin A.
*Blocking peptide can be purchased. Costs vary based on immunogen length. Contact us for pricing.
Cross-reactivity
No cross-reactivity with other proteins
Reactive Species
PA2105 is reactive to CSTA in Human
Reconstitution
Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
Observed Molecular Weight
14 kDa
Calculated molecular weight
11006 MW
Background of CSTA
Cystatin A also called Stefin A is a protein that in humans is encoded by the CSTA gene. Cystatin A is a cysteine proteinase inhibitor that belongs to family 1 of the cystatin superpamily. This gene was assigned to human chromosome 3q21.1. This is an intracellular thiol proteinase inhibitor. Cystatin A plays an important role in desmosome-mediated cell-cell adhesion in the lower levels of the epidermis. Stefins have been proposed as prognostic and diagnostic tools for cancer.
Antibody Validation
Boster validates all antibodies on WB, IHC, ICC, Immunofluorescence, and ELISA with known positive control and negative samples to ensure specificity and high affinity, including thorough antibody incubations.
Application & Images
Applications
PA2105 is guaranteed for IHC, WB Boster Guarantee
Assay Dilutions Recommendation
The recommendations below provide a starting point for assay optimization. The actual working concentration varies and should be decided by the user.
Immunohistochemistry (Paraffin-embedded Section), 0.5-1μg/ml, Human, By Heat
Western blot, 0.1-0.5μg/ml, Human
Positive Control
WB: human A431 whole cell
IHC: human tonsil tissue
Validation Images & Assay Conditions
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Figure 1. Western blot analysis of Cystatin A/CSTA using anti-Cystatin A/CSTA antibody (PA2105).
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 A431 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-Cystatin A/CSTA antigen affinity purified polyclonal antibody (Catalog # PA2105) 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 Cystatin A/CSTA at approximately 14KD. The expected band size for Cystatin A/CSTA is at 11KD.
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Figure 2. IHC analysis of Cystatin A/CSTA using anti-Cystatin A/CSTA antibody (PA2105).
Cystatin A/CSTA was detected in paraffin-embedded section of human tonsil tissues. Heat mediated antigen retrieval was performed in citrate buffer (pH6, epitope retrieval solution) for 20 mins. The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 1μg/ml rabbit anti-Cystatin A/CSTA Antibody (PA2105) overnight at 4°C. Biotinylated goat anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using Strepavidin-Biotin-Complex (SABC)(Catalog # SA1022) with DAB as the chromogen.
Protein Target Info & Infographic
Gene/Protein Information For CSTA (Source: Uniprot.org, NCBI)
Gene Name
CSTA
Full Name
Cystatin-A
Weight
11006 MW
Superfamily
cystatin family
Alternative Names
Cystatin-A;Cystatin-AS;Stefin-A;Cystatin-A, N-terminally processed;CSTA;STF1, STFA; CSTA AREI, PSS4, STF1, STFA cystatin A cystatin-A|cystatin A (stefin A)|cystatin AS
*If product is indicated to react with multiple species, protein info is based on the gene entry specified above in "Species".For more info on CSTA, check out the CSTA Infographic
We have 30,000+ of these available, one for each gene! Check them out.
In this infographic, you will see the following information for CSTA: database IDs, superfamily, protein function, synonyms, molecular weight, chromosomal locations, tissues of expression, subcellular locations, post-translational modifications, and related diseases, research areas & pathways. If you want to see more information included, or would like to contribute to it and be acknowledged, please contact [email protected].
Specific Publications For Anti-Cystatin A/CSTA Antibody Picoband® (PA2105)
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Customer Q&As
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3 Customer Q&As for Anti-Cystatin A/CSTA Antibody Picoband®
Question
Will PA2105 anti-Cystatin A/CSTA antibody work on parafin embedded sections? If so, which fixation method do you recommend we use (PFA, paraformaldehyde, other)?
Verified Customer
Verified customer
Asked: 2019-07-23
Answer
It shows on the product datasheet, PA2105 anti-Cystatin A/CSTA antibody as been tested on IHC. It is best to use PFA for fixation because it has better tissue penetration ability. PFA needs to be prepared fresh before use. Long term stored PFA turns into formalin, as the PFA molecules congregate and become formalin.
Boster Scientific Support
Answered: 2019-07-23
Question
I was wanting to use your anti-Cystatin A/CSTA antibody for IHC for human keratinocyte on frozen tissues, but I want to know if it has been tested for this particular application. Has this antibody been tested and is this antibody a good choice for human keratinocyte identification?
Verified Customer
Verified customer
Asked: 2019-05-29
Answer
You can see on the product datasheet, PA2105 anti-Cystatin A/CSTA antibody has been tested for IHC, WB on human tissues. We have an innovator award program that if you test this antibody and show it works in human keratinocyte in IHC-frozen, you can get your next antibody for free.
Boster Scientific Support
Answered: 2019-05-29
Question
Is there a BSA free version of anti-Cystatin A/CSTA antibody PA2105 available?
Verified Customer
Verified customer
Asked: 2017-06-12
Answer
Thanks for your recent telephone inquiry. I can confirm that some lots of this anti-Cystatin A/CSTA antibody PA2105 are BSA free. For now, these lots are available and we can make a BSA free formula for you free of charge. It will take 3 extra days to prepare. If you require this antibody BSA free again in future, please do not hesitate to contact me and I will be pleased to check which lots we have in stock that are BSA free.
Boster Scientific Support
Answered: 2017-06-12
