Recombinant Human Guanine nucleotide-binding protein G(k) subunit alpha(GNAI3)

Code CSB-EP009591HU
Size US$1726
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

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Product Details

Purity Greater than 90% as determined by SDS-PAGE.
Target Names GNAI3
Uniprot No. P08754
Research Area Cell Cycle
Alternative Names 87U6; FLJ26559; G protein alpha inhibiting 3; G(i) alpha 3 ; G(i) alpha-3; GNAI3; GNAI3_HUMAN; Guanine nucleotide binding protein (G protein) alpha inhibiting activity polypeptide 3 ; Guanine nucleotide binding protein G(k) alpha subunit; Guanine nucleotide-binding protein G(k) subunit alpha; OTTHUMP00000013368
Species Homo sapiens (Human)
Source E.coli
Expression Region 1-354aa
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 44.5kDa
Protein Length Full Length
Tag Info N-terminal 6xHis-tagged
Form Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
and FAQs
Protein FAQs
Storage Condition Store at -20°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA Please contact us to get it.

Target Data

Function Heterotrimeric guanine nucleotide-binding proteins (G proteins) function as transducers downstream of G protein-coupled receptors (GPCRs) in numerous signaling cascades. The alpha chain contains the guanine nucleotide binding site and alternates between an active, GTP-bound state and an inactive, GDP-bound state. Signaling by an activated GPCR promotes GDP release and GTP binding. The alpha subunit has a low GTPase activity that converts bound GTP to GDP, thereby terminating the signal. Both GDP release and GTP hydrolysis are modulated by numerous regulatory proteins
Gene References into Functions
  1. magnetic field-dependent nuclear magnetic resonance relaxation analyses were used to investigate the structural and dynamic properties of GDP bound Galpha on a microsecond timescale. PMID: 28223697
  2. Results show that Galphai3 nuclear translocation causes irradiation resistance in human glioma cells through its complexation with DNA-PKcs leading to DNA repair. PMID: 28456783
  3. GNAI3 is identified a second gene possibly responsible for X-linked ocular albinism. PMID: 27607449
  4. Data show that auriculo-condylar syndrome (ACS)-associated mutations in G protein subunit alpha i3 (GNAI3) produce dominant-negative Galpha(i3) mutant proteins that couple to endothelin type A receptor (ET(A)R). PMID: 27072656
  5. In postmortem human prefrontal cortex, adenosine A1 receptor is coupled preferentially, if not exclusively, to Galphai-3. PMID: 26213104
  6. transcriptional upregulation of Girdin expression and Girdin-Galphai3 signaling play crucial roles in regulating epithelial apicobasal polarity through the PAR complex. PMID: 25977476
  7. GIV and its substrate Galphai3 are recruited to active integrin complexes PMID: 26391662
  8. We demonstrate that the GNAI3 variant is the likely cause of auriculocondylar syndrome in the original ACS1 family. PMID: 25026904
  9. Both SH2 and GEF domains of GIV are required for the formation of a ligand-activated ternary complex between GIV, Galphai3, and EGFR. PMID: 25187647
  10. Low GNAI3 expression is associated with hepatocellular carcinoma. PMID: 25444921
  11. Data indicate that dynein- and astral microtubule-mediated transport of Galphai/LGN/nuclear mitotic apparatus (NuMA) complex from cell cortex to spindle poles. PMID: 23389635
  12. The phenotypic variability of auriculocondylar syndrome suggests that mutations in this pathway, especially those affecting core signaling molecules such as PLCB4 and GNAI3, should be considered as potential candidates for other ear and jaw malformations. PMID: 22560091
  13. These results identify the Oa1 transducer Galphai3 as the first downstream component in the Oa1 signaling pathway. PMID: 21931697
  14. The mechanisms of regulation of GIRK by Galpha(i/o) using wild-type Galpha(i3) (Galpha(i3)WT) and Galpha(i3), were investigated. PMID: 21795707
  15. These results provide mechanistic insights into how reversible modulation of Galpha(i3) activity by AGS3 and GIV maintains the delicate equilibrium between promotion and inhibition of autophagy. PMID: 21209316
  16. Data suggest that Galphai-TNFAIP8-mediated rescue of pre-oncogenic cells enhances progression to oncogenic transformation, providing a selective target to inhibit cellular transformation. PMID: 20607800
  17. we show that A3 adenosine receptor/Gi3 play important roles in human mast cells responses initiated on contact with activated T cells. PMID: 20190146
  18. These data present AGS3, G-proteins, and mInsc as candidate proteins involved in regulating cellular stress associated with protein-processing pathologies. PMID: 20065032
  19. Overexpression of GIPN stimulates proteasome-dependent reduction of endogenous G alpha i3 in HEK293 cells and reduces the half-life of overexpressed G alpha i3-YFP. PMID: 12826607
  20. diffraction data were collected to 2.5 A resolution at 100 K using synchrotron radiation at Pohang beamline 4A for human RGS10 complexed with Galphai3 [Galphai3] PMID: 16511171
  21. x-ray crystallography of the complex of RGS5 and Galphai(3) proteins with GDP/Mg(2+)/AlF(4)(-) at 3.0 A resolution PMID: 17100651
  22. The Galphai3-GIV switch serves to link direction sensing from different families of chemotactic receptors to formation of the leading edge during cell migration. PMID: 18663145
  23. Insulin-like growth factor-binding protein-5 stimulates growth of human intestinal muscle cells by activation of Galphai3. PMID: 19808657

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Involvement in disease Auriculocondylar syndrome 1 (ARCND1)
Subcellular Location Cytoplasm, Cell membrane, Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, Membrane, Lipid-anchor
Protein Families G-alpha family, G(i/o/t/z) subfamily
Database Links

HGNC: 4387

OMIM: 139370

KEGG: hsa:2773

STRING: 9606.ENSP00000358867

UniGene: Hs.73799

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