Recombinant Human Rac1 protein (ab82670)

Overview

Description

  • NatureRecombinant
  • SourceEscherichia coli
  • Amino Acid Sequence
    • SpeciesHuman

Specifications

Our Abpromise guarantee covers the use of ab82670 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications

    SDS-PAGE

  • Purity> 95 % SDS-PAGE.

  • FormLyophilised
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Upon delivery aliquot. Store at -80°C. Avoid freeze / thaw cycle.

    Preservative: None
    Constituents: 50mM HEPES, 10mM GSH, pH 8

  • ReconstitutionReconstitute in 20mM HEPES, pH 7.0

General Info

  • Alternative names
    • Cell migration inducing gene 5 protein
    • Cell migration-inducing gene 5 protein
    • MGC111543
    • MIG5
    • Migration inducing gene 5
    • Migration inducing protein 5
    • p21 Rac1
    • p21-Rac1
    • Rac 1
    • RAC1
    • RAC1_HUMAN
    • Ras like protein TC25
    • Ras related C3 botulinum toxin substrate 1 (rho family, small GTP binding protein Rac1)
    • Ras-like protein TC25
    • Ras-related C3 botulinum toxin substrate 1
    • Rho family small GTP binding protein Rac1
    • TC 25
    • TC25
    see all
  • FunctionPlasma membrane-associated small GTPase which cycles between active GTP-bound and inactive GDP-bound states. In its active state, binds to a variety of effector proteins to regulate cellular responses such as secretory processes, phagocytosis of apoptotic cells, epithelial cell polarization and growth-factor induced formation of membrane ruffles. Rac1 p21/rho GDI heterodimer is the active component of the cytosolic factor sigma 1, which is involved in stimulation of the NADPH oxidase activity in macrophages (By similarity). Essential for the SPATA13-mediated regulation of cell migration and adhesion assembly and disassembly.
    Isoform B has an accelerated GEF-independent GDP/GTP exchange and an impaired GTP hydrolysis, which is restored partially by GTPase-activating proteins. It is able to bind to the GTPase-binding domain of PAK but not full-length PAK in a GTP-dependent manner, suggesting that the insertion does not completely abolish effector interaction.
  • Tissue specificityIsoform B is predominantly identified in skin and epithelial tissues from the intestinal tract. Its expression is elevated in colorectal tumors at various stages of neoplastic progression, as compared to their respective adjacent tissues.
  • Sequence similaritiesBelongs to the small GTPase superfamily. Rho family.
  • DomainThe effector region mediates interaction with DEF6.
  • Post-translational
    modifications
    AMPylation at Tyr-32 and Thr-35 are mediated by bacterial enzymes in case of infection by H.somnus and V.parahaemolyticus, respectively. AMPylation occurs in the effector region and leads to inactivation of the GTPase activity by preventing the interaction with downstream effectors, thereby inhibiting actin assembly in infected cells. It is unclear whether some human enzyme mediates AMPylation; FICD has such ability in vitro but additional experiments remain to be done to confirm results in vivo.
  • Cellular localizationCell membrane. Melanosome. Inner surface of plasma membrane possibly with attachment requiring prenylation of the C-terminal cysteine (By similarity). Identified by mass spectrometry in melanosome fractions from stage I to stage IV.
  • Information by UniProt

Recombinant Human Rac1 protein images

  • ab82670 at 1µg on SDS-PAGE.

References for Recombinant Human Rac1 protein (ab82670)

ab82670 has not yet been referenced specifically in any publications.

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