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Render Timestamp: 2024-10-04T09:37:35.658Z
Commit: f04ddd7fea9fb3592f59f61482fcb94610d25cbe
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PDP - Template Name: Polyclonal Antibody
PDP - Template ID: *******59c6464

CTPS1 Antibody #98287

Filter:
  • WB

    Supporting Data

    REACTIVITY H
    SENSITIVITY Endogenous
    MW (kDa) 78
    SOURCE Rabbit
    Application Key:
    • WB-Western Blotting 
    Species Cross-Reactivity Key:
    • H-Human 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000

    Storage

    Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

    Protocol

    Specificity / Sensitivity

    CTPS1 Antibody recognizes endogenous levels of total CTPS1 protein. This antibody does not cross-react with CTPS2 protein.

    Species Reactivity:

    Human

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala340 of human CTPS1 protein. Antibodies are purified by peptide affinity chromatography.

    Background

    CTPS1 (cytidine triphosphate synthase 1 or CTP synthase 1) catalyzes the conversion of UTP to CTP through ATP-dependent amination (1). Research studies show that pyrimidine biosynthesis is upregulated in pancreatic cancer cell models of resistance to gemcitabine, a deoxycytidine analog. Increased pyrimidine biosynthesis leads to elevated levels of endogenous dCTP, which outcompetes gemcitabine from incorporating into DNA during replication and, therefore, reduces the anti-cancer effectiveness of gemcitabine. Induction of CTPS1 expression was observed in gemcitabine-resistant pancreatic cancer cell models. Gemcitabine resistance directly correlates with CTPS1 expression levels in various pancreatic cancer cell lines (2). Furthermore, CTPS1 expression was shown to increase in T cells upon T-cell receptor activation, suggesting a critical role of CTPS1 in the immune system (3).
    For Research Use Only. Not For Use In Diagnostic Procedures.
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