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Human CTSB qPCR primer pairs

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    Human CTSB qPCR Product Information
    NCBI RefSeq:
    Gene Synonym:APPS, CPSB, CTSB
    PCR_SIZE (bp):
    QPCR Primer Description:Verified forward and reverse primers for analyzing the quantitative expression of gene
    Quality Control:The primer mix has been verified to generate satisfactory qPCR data on Roche LightCycler480
    Shipping_carrier:1 vial of lyophilized qPCR primer mix (1 nmol each primer, sufficient for 200 numbers of 25 μl reactions) is shipped at ambiente temperatura.
    Storage:The lyophilized product is stable for one year from date of receipt when stored at -20℃.
    The suspended product is stable for six months from date of receipt when stored at -20℃.
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    Sino biological qEASY qPCR primer pairs are used for SYBR Green-based real-time RT-PCR, The primers are designed by using SBI's proprietary primer design algorithm. Our primer collection covers the entire human genomes. It can be widely applied in the quantitative analysis of gene expression.

    Unique Primer Design

    To avoid genomic DNA amplification, at least one primer is designed crosses the junction of exons according to the conserved region of a specific gene with all variants.

    Strict Validation Process

    Confirmed in positive organizations; screened the primer with high specificity and high sensitivity.

    Uniform PCR conditions, Saving time and cost

    ~100% amplification curve, ensuring the accuracy of the RNA quantitative

    Cathepsin B/CTSB Background

    Cathepsin B is a papain-family cysteine protease that is normally located in lysosomes, where it is involved in the turnover of proteins and plays various roles in maintaining the normal metabolism of cells. This protease has been implicated in pathological conditions, e.g., tumor progression and arthritis. In disease conditions, increases in the expression of cathepsin B occur at both the gene and protein levels. Cathepsin B is synthesized as a preproenzyme and the primary pathways for its normal trafficking to the lysosome utilize mannose 6-phosphate receptors (MPRs). Mature cathepsin B has the ability to degrade several extracellular matrix components at both neutral and acidic pH and has been implicated in the progression of several human and rodent tumors progression and arthritis. Cathepsin B expression is increased in many human cancers at the mRNA, protein and activity levels. It is also frequently overexpressed in premalignant lesions, an observation that associates this protease with local invasive stages of cancer. Increased expression of cathepsin B in primary cancers, and especially in preneoplastic lesions, suggests that this enzyme might have pro-apoptotic features. Active cathepsin B is also secreted from tumours, a mechanism likely to be facilitated by lysosomal exocytosis or extracellular processing by surface activators. Cathepsin B is localized to caveolae on the tumour surface, where binding to the annexin II heterotetramer occurs. Thus CTSB is suggested as a tumor marker. Additionally, Cathepsin B can degrade extracellular matrix proteins, such as collagen IV and laminin, and can activate the precursor form of urokinase plasminogen activator (uPA), perhaps thereby initiating an extracellular proteolytic cascade.

    Human Cathepsin B/CTSB References
  • Mai J, et al. (2000) Cell surface complex of cathepsin B/annexin II tetramer in malignant progression. Biochim Biophys Acta. 1477(1-2): 215-30.
  • Podgorski I, et al. (2003) Cathepsin B and its role(s) in cancer progression. Biochem Soc Symp. (70): 263-76.
  • Yan S, et al. (2003) Molecular regulation of human cathepsin B: implication in pathologies. Biol Chem. 384(6): 845-54.
  • Roshy S, et al. (2003) Pericellular cathepsin B and malignant progression. Cancer Metastasis Rev. 22(2-3): 271-86.
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