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Cystatin B/Stefin B Antibody [Biotin]

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Product Details

Summary
Applications WB
Clonality
Polyclonal
Host
Goat
Conjugate
Biotin
Concentration
LYOPH

Order Details

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Catalog# & Conjugate Size Price
Unconjugated
AF1408
View Available Formulations
Catalog# & Formulation Size Price
Standard Formulation
AF1408
Carrier Free
AF1408
Carrier Free
AF1408-SP
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Cystatin B/Stefin B Antibody [Biotin] Summary

Immunogen
E. coli-derived recombinant human Cystatin B (R&D Systems, Catalog # 1408-PI)
Met2-Phe98
Accession # P04080
Specificity
Detects human Cystatin B in Western blots. In this format, less than 2% cross-reactivity with recombinant mouse Cystatin B, recombinant human (rh) Cystatin A, 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
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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 BSA as a carrier protein.
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.

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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Bioinformatics

Gene Symbol CSTB