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Cystatin B/Stefin B Antibody [Unconjugated]

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Western blot shows lysates of human colon tissue, PC-12 rat adrenal pheochromocytoma cell line, A549 human lung carcinoma cell line, and SK-BR-3 human breast cancer cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human/Rat Cystatin B Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1408) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for Cystatin B at approximately 11 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Western blot shows lysates of human colon tissue, PC-12 rat adrenal pheochromocytoma cell line, A549 human lung carcinoma cell line, and SK-BR-3 human breast cancer cell line. PVDF membrane was probed with 1 µg/mL of ...read more
Simple Western lane view shows lysates of A549 human lung carcinoma cell line, loaded at 0.2 mg/mL. A specific band was detected for Cystatin B at approximately 18 kDa (as indicated) using 10 µg/mL of Goat ...read more
Genetic Strategies: Western blot shows lysates of HEK293T human embryonic kidney parental cell line and Cystatin B knockout HEK293T cell line (KO). PVDF membrane was probed with 1 µg/mL of Goat Anti-Human/Rat ...read more

Product Details

Summary
Reactivity Hu, RtSpecies Glossary
Applications WB, Simple Western, IHC, IP, KO
Clonality
Polyclonal
Host
Goat
Conjugate
Unconjugated
Concentration
LYOPH
Validated by:
     

Genetic Strategies

    

Order Details

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Catalog# & Conjugate Size Price
Biotin
BAF1408
View Available Formulations
Catalog# & Formulation Size Price
Carrier Free
AF1408-SP
100% Guarantee on every product

Cystatin B/Stefin B Antibody [Unconjugated] Summary

Immunogen
E. coli-derived recombinant human Cystatin B
Met2-Phe98
Accession # P04080
Specificity
Detects human and rat Cystatin B in Western blots. In Western blots, less than 2% cross-reactivity with recombinant human (rh) Cystatin A, recombinant mouse Cystatin B, rhCystatin C, rhCystatin D, rhCystatin E/M, rhCystatin S, rhCystatin SA, and rhCystatin SN is observed.
Source
N/A
Isotype
IgG
Clonality
Polyclonal
Host
Goat
Gene
CSTB
Purity Statement
Antigen Affinity-purified
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.
Learn about the Innovator's Reward

Applications/Dilutions

Dilutions
  • Immunohistochemistry 5-15 ug/mL
  • Immunoprecipitation 25 ug/mL
  • Knockout Validated
  • Simple Western 10 ug/mL
  • Western Blot 1 ug/mL
Publications
Read Publications using
AF1408 in the following applications:

Packaging, Storage & Formulations

Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Preservative
No Preservative
Concentration
LYOPH
Reconstitution Instructions
Reconstitute at 0.2 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Cystatin B/Stefin B Antibody [Unconjugated]

  • CPI-B
  • CST6cystatin B (liver thiol proteinase inhibitor)10STFBcystatin-B
  • CSTB
  • cystatin B (stefin B)
  • Cystatin B
  • EPM1
  • Liver thiol proteinase inhibitor
  • PME
  • Stefin B
  • stefin-B

Background

Cystatin B, also called stefin B or liver thiol proteinase inhibitor, is a member of family 1 of the cystatin superfamily (1). Like Cystatin A, it is an intracellular inhibitor regulating the activities of cysteine proteases of the papain family such as cathepsins B, H and L (2). Mutations in the Cystatin B gene is the cause of progressive myoclonus epilepsy (EPM1) (3). Because of its expression patterns, Cystatin B can be used as a marker for certain cancers, such as glioblastoma tumors (4). It readily forms amyloid fibrils in vitro (5). The human Cystatin B consists of 98 amino acid residues (3).

  1. Abrahamson, M. (1994) Methods Enzymol. 244:685.
  2. Pol, E. and I. Bjork (1999) Biochemistry 38:10519.
  3. Pennacchio, L.A. et al. (1996) Science 271:1731.
  4. Zhang, R. et al. (2003) Glia 42:194.
  5. Zerovnik, E. et al. (2002) Biochim. Biophys. Acta 1594:1.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Publications for Cystatin B/Stefin B Antibody (AF1408)(3)

We have publications tested in 2 confirmed species: Human, Rat.

We have publications tested in 2 applications: ICC, Western Blot.


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(1)
Western Blot
(2)
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Bioinformatics

Gene Symbol CSTB
Uniprot