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  1. Products /
  2. Cellular Assay Kits /
  3. Active Arf1 Detection Kit

Active Arf1 Detection Kit #8816

Inquiry Info. # 8816

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    Product Information

    Storage

    GTPγS: Store at -80°C
    GDP: Store at -80°C
    GST-GGA3-PBD: Store at -80°C
    Lysis/Binding/Wash Buffer: Store at 4°C
    Glutathione Resin: Store at 4°C
    SDS Sample Buffer: Store at 4°C
    Spin Cup and Collection Tubes: Store at 4°C
    Arf1 Rabbit mAb: Store at -20°C

    Product Description

    The Active Arf1 Detection Kit provides all reagents necessary for measuring activation of Arf1 GTPase in the cell. GST-GGA3-PBD fusion protein is used to bind the activated form of GTP-bound Arf1, which can then be immunoprecipitated with glutathione resin. Arf1 activation levels are then determined by western blot using an Arf1 Rabbit mAb.

    Specificity / Sensitivity

    Active Arf1 Detection Kit detects endogenous levels of GTP-bound (active) Arf1 as shown in Figure 1. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.

    Species Reactivity:

    Human, Mouse

    Background

    The Ras superfamily of small GTP-binding proteins (G proteins) comprise a large class of proteins (over 150 members) that can be classified into at least five families based on their sequence and functional similarities: Ras, Rho, Rab, Arf, and Ran (1-3). These small G proteins have both GDP/GTP-binding and GTPase activities and function as binary switches in diverse cellular and developmental events that include cell cycle progression, cell survival, actin cytoskeletal organization, cell polarity and movement, and vesicular and nuclear transport (1). An upstream signal stimulates the dissociation of GDP from the GDP-bound form (inactive), which leads to the binding of GTP and formation of the GTP-bound form (active). The activated G protein then goes through a conformational change in its downstream effector-binding region, leading to the binding and regulation of downstream effectors. This activation can be switched off by the intrinsic GTPase activity, which hydrolyzes GTP to GDP and releases the downstream effectors. These intrinsic guanine nucleotide exchange and GTP hydrolysis activities of Ras superfamily proteins are also regulated by guanine nucleotide exchange factors (GEFs) that promote formation of the active GTP-bound form and GTPase activating proteins (GAPs) that return the GTPase to its GDP-bound inactive form (4).
    ADP-ribosylation factor (Arf) proteins are low molecular weight GTP binding proteins that belong to the Ras GTPase superfamily. Arf proteins are grouped into three distinct classes based on amino acid sequence and structural similarity. Arf1 is a class I Arf protein and is involved in the budding of vesicles from the Golgi (1).

    Database Links

    UniProt ID: P84077


    Entrez-Gene Id: 375


    Limited Uses

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    For Research Use Only. Not For Use In Diagnostic Procedures.
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