T-cell surface glycoprotein CD3 gamma chain, also known as CD3-gamma, CD3g, T3g and IMD17, is a single-pass type I transmembrane protein. CD3d contains 1 Ig-like (immunoglobulin-like) domain in the extracellular region and 1 cytoplasmic ITAM (immune tyrosine activation motif) domain. CD3g is part of the T-cell receptor (TCR)/CD3 complex and is involved in T-cell development and signal transduction. The TCR/CD3 complex of T-lymphocytes consists of either a TCR alpha/beta or TCR gamma/delta heterodimer co-expressed at the cell surface with the invariant subunits of CD3 labeled gamma, delta, epsilon, zeta, and eta. The TCR/CD3 complex plays an important role in coupling antigen recognition to several intracellular signal-transduction pathways leading to the activation of T cells. The genes encoding the CD3 epsilon, gamma and delta polypeptides are located in the same cluster on chromosome 11. Defects in the CD3g gene are a cause of immunodeficiency 17 (IMD17), an autosomal recessive primary immunodeficiency characterized by highly variable clinical severity. Some patients have onset of severe recurrent infections in early infancy that may be lethal, whereas others may be only mildly affected or essentially asymptomatic into young adulthood. More severely affected patients may have evidence of autoimmune disease or enteropathy. The immunologic pattern is similar among patients, showing partial T-cell lymphopenia, decreased amounts of the CD3 complex, and impaired proliferative responses to T-cell receptor dependent stimuli. The phenotype in some patients is reminiscent of severe combined immunodeficiency.

T-cell surface glycoprotein CD3 gamma chain, also known as CD3-gamma, CD3g, T3g and IMD17, is a single-pass type I transmembrane protein. CD3d contains 1 Ig-like (immunoglobulin-like) domain in the extracellular region and 1 cytoplasmic ITAM (immune tyrosine activation motif) domain. CD3g is part of the T-cell receptor (TCR)/CD3 complex and is involved in T-cell development and signal transduction. The TCR/CD3 complex of T-lymphocytes consists of either a TCR alpha/beta or TCR gamma/delta heterodimer co-expressed at the cell surface with the invariant subunits of CD3 labeled gamma, delta, epsilon, zeta, and eta. The TCR/CD3 complex plays an important role in coupling antigen recognition to several intracellular signal-transduction pathways leading to the activation of T cells. The genes encoding the CD3 epsilon, gamma and delta polypeptides are located in the same cluster on chromosome 11. Defects in the CD3g gene are a cause of immunodeficiency 17 (IMD17), an autosomal recessive primary immunodeficiency characterized by highly variable clinical severity. Some patients have onset of severe recurrent infections in early infancy that may be lethal, whereas others may be only mildly affected or essentially asymptomatic into young adulthood. More severely affected patients may have evidence of autoimmune disease or enteropathy. The immunologic pattern is similar among patients, showing partial T-cell lymphopenia, decreased amounts of the CD3 complex, and impaired proliferative responses to T-cell receptor dependent stimuli. The phenotype in some patients is reminiscent of severe combined immunodeficiency.

 

Product Details

 

Gene Symbol: CD3G; T3G; IMD17; CD3-GAMMA

 

NCBI Gene ID: 917

 

Uniprot Entry: P09693

 

Construct Details: The recombinant human CD3g-Fc is expressed as a 309-amino acid protein consisting of  Gln23 -  Met103 region of CD3g and a C-terminal Fc from human IgG1, which exists as a dimer under non-reducing conditions.   

 

Source:  Human cells stably expressing CD3g-Fc growing in chemical-defined media with no animal components or antibiotics 

 

Deduced Amino Acid Sequence:

        10         20         30         40         50         60 

QSIKGNHLVK VYDYQEDGSV LLTCDAEAKN ITWFKDGKMI GFLTEDKKKW NLGSNAKDPR 

        70         80         90        100        110        120 

GMYQCKGSQN KSKPLQVYYR MSTGTHTCPP CPAPELLGGP SVFLFPPKPK DTLMISRTPE 

       130        140        150        160        170        180 

VTCVVVDVSH EDPEVKFNWY VDGVEVHNAK TKPREEQYNS TYRVVSVLTV LHQDWLNGKE 

       190        200        210        220        230        240 

YKCKVSNKAL PAPIEKTISK AKGQPREPQV YTLPPSREEM TKNQVSLTCL VKGFYPSDIA 

       250        260        270        280        290        300 

VEWESNGQPE NNYKTTPPVL DSDGSFFLYS KLTVDKSRWQ QGNVFSCSVM HEALHNHYTQ 

 

KSLSLSPGK 

 

M.W.: Calculated molecular mass (kDa): 34.9; Estimated by SDS-PAGE under reducing condition (kDa): 45-50

 

Calculated PI: 8.61

 

Calculated Extinction Coefficient (M^-1 cm^-1, at 280nm): 54360

 

Purity: >95% judged by SDS-PAGE under reducing condition (see the gel image above, labeled as DTT "+")

 

Formulation: Supplied at 0.5 mg/ml in sterile PBS pH7.4 (carrier and preservative free).

 

Endotoxin Level: <0.1 EU per 1 μg of purified recombinant protein determined by the LAL method

 

Biological Activity: Not available

 

  

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

Restriction: This product is not transferable or re-sellable.  Customer obtain no right to transfer, assign, or sublicense its use rights, or to transfer, resell, package, or otherwise distribute the product, or to use the product for the benefit of any third party or for any commercial purpose.  Customer may only use the product in compliance with applicable local, state and federal laws, regulations and rules.  Customer may not directly or indirectly use the product or allow the transfer, transmission, export or re-export of all or any part of the product in violation of any export control law or regulation of the united states or any other relevant jurisdiction.  Your use of this product constitutes acceptance of the terms of this limited use agreement.  Please refer to our “terms & conditions” for details.  If you are not willing to accept the limitation of this agreement, G&P Biosciences will accept return of the product for a full/partial refund.

 

Storage

 

The product is shipped at 4°C. Upon receipt, centrifuge the product briefly before opening the vial. It is recommended to store small aliquots at the temperature below –20°C for long-term storage and the product is stable for 6 months. 

 

 

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

 

 

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

 

References

 

1. EMBO J. 5:1799 (1986) 

2. Cell 69:1143 (1992)

3. N. Engl. J. Med. 327:529 (1992)

4. J. Immunol. 178:2556 (2007) 

5. Proc. Natl. Acad. Sci. 101:7675 (2004)

 

 

Documentation

 

Product datasheet (pdf) can be downloaded here: FCL2566-PDS.pdf

 

 

 

Additional supporting documents, including COA and MSDS are available upon request.

 

 

 

FOR RESEARCH USE ONLY. NOT FOR DIAGNOSTIC OR THERAPEUTIC USE IN HUMAN.

Restriction: This product is not transferable or re-sellable.  Customer obtain no right to transfer, assign, or sublicense its use rights, or to transfer, resell, package, or otherwise distribute the product, or to use the product for the benefit of any third party or for any commercial purpose.  Customer may only use the product in compliance with applicable local, state and federal laws, regulations and rules.  Customer may not directly or indirectly use the product or allow the transfer, transmission, export or re-export of all or any part of the product in violation of any export control law or regulation of the united states or any other relevant jurisdiction.  Your use of this product constitutes acceptance of the terms of this limited use agreement.  Please refer to our “terms & conditions” for details.  If you are not willing to accept the limitation of this agreement, G&P Biosciences will accept return of the product for a full/partial refund.