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Human GOPC / PIST Protein (His Tag)

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Human GOPC Protein Product Information
Synonym:GOPC, CAL, FIG
Protein Construction:A DNA sequence encoding the human GOPC (Q9HD26-1) (Ile286-Tyr462) was expressed with a polyhistide tag at the N-terminus.
Expressed Host:E. coli
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Human GOPC Protein QC Testing
Purity:> 90 % as determined by SDS-PAGE
Endotoxin:Please contact us for more information.
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:His
Molecule Mass:The recombinant human GOPC consists of 192 amino acids and predicts a molecular mass of 21.1 KDa. It migrates as an approximately 25-30 KDa band in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile PBS, 10% Glycerol, pH 7.4.
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human GOPC Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Other GOPC Recombinant Protein Products
GOPC / PIST Background

GOPC, also known as PIST, interacts specifically with TC10 (a Rho-family small GTPase)] as a binding partner for Rhotekin. Rhotekin associates with PIST in vitro and in both polarized and non-polarized MDCK (Madin-Darby canine kidney) cells. The C-terminal SPV (Ser-Pro-Val) motif of Rhotekin binds to the PDZ domain of PIST. The co-localization of PIST and Rhotekin at the Golgi apparatus can be detected in non-polarized fibroblast-like MDCK cells and AJs (adherens junctions) in the fully polarized cells. PIST and Rhotekin are recruited from the cytosol to AJs as the cell becomes polarized. Expression of constitutively active Rho or prevention of Rhotekin-PIST interaction induced diffuse cytoplasmic distribution of Rhotekin in polarized MDCK cells. GOPC may regulate CFTR chloride currents and acid-induced ACCN3 currents by modulating cell surface expression of both channels. It may also regulate the intracellular trafficking of the ADR1B receptor. GOPC is ubiquitously expressed and its overexpression results in CFTR intracellular retention and degradation in the lysosomes.

Human GOPC / PIST References
  • Hicks SW. et al., 2005, J Biol Chem. 280 (32): 28944-51.
  • Ito H. et al., 2006, Biochem J Aug. 397 (3): 389-98.
  • Amin N. et al., 2012, Mol Psychiatry. 17 (11): 1116-29.
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    Catalog: 14911-H07E-20
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