Recombinant Human T-cell surface glycoprotein CD3 gamma chain (CD3G), partial

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Code CSB-EP004933HU1
Size $306
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Greater than 90% as determined by SDS-PAGE.
Target Names
Uniprot No.
Research Area
Alternative Names
(T-cell receptor T3 gamma chain)(CD antigen CD3g)
Homo sapiens (Human)
Expression Region
Target Protein Sequence
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight
18.2 kDa
Protein Length
Tag Info
N-terminal 10xHis-tagged and C-terminal Myc-tagged
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.
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
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℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°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
3-7 business days
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.

The recombinant Human CD3G protein production is achieved through the manipulation of desired gene expression in e.coli cells. The sequence (23-116aa) of foreign DNA is fused to an expression vector and then transformed into e.coli cells. The positive cells are selected and cultured to induce the expression of the desired protein. A N-terminal 10xHis tag and C-terminal Myc tag is fused to the protein. The recombinant Human CD3G protein is subjected to affinity purification. Its purity is over 90%, as measured by SDS-PAGE.

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Target Background

Part of the TCR-CD3 complex present on T-lymphocyte cell surface that plays an essential role in adaptive immune response. When antigen presenting cells (APCs) activate T-cell receptor (TCR), TCR-mediated signals are transmitted across the cell membrane by the CD3 chains CD3D, CD3E, CD3G and CD3Z. All CD3 chains contain immunoreceptor tyrosine-based activation motifs (ITAMs) in their cytoplasmic domain. Upon TCR engagement, these motifs become phosphorylated by Src family protein tyrosine kinases LCK and FYN, resulting in the activation of downstream signaling pathways. In addition to this role of signal transduction in T-cell activation, CD3G plays an essential role in the dynamic regulation of TCR expression at the cell surface. Indeed, constitutive TCR cycling is dependent on the di-leucine-based (diL) receptor-sorting motif present in CD3G.
Gene References into Functions
  1. CD3 showed a positive correlation with tryptase and microvascular density, while multiple regression analysis efficaciously predicted microvascular density depending on CD3 and tryptase as predictors, supporting a complex interplay between these cells in sustaining tumor angiogenesis in Diffuse large B cell lymphoma patients. PMID: 25957593
  2. The study identifies an important role of the CD3gamma dileucine motif in T-cell development most probably mediated by its fine-tuning of pre-TCR and TCR expression, down-regulation and signaling. PMID: 25920998
  3. HER2/CD3 BsAb efficiently inhibited the growth of breast cancer tissue by activating and inducing the proliferation of tumor tissue infiltrating lymphocytes. PMID: 25760691
  4. Low cord blood Foxp3/CD3gamma mRNA ratios are highly predictive for early allergy development. PMID: 25113399
  5. Data indicate that the high CD68/CD3 ratio identifies a bad prognosis group among muscle-invasive urothelial carcinoma (UC). cases. PMID: 24794251
  6. Case Report: T-cell lymphoblastic leukemia/lymphoma with t(7;14)(p15;q32) [TCRgamma-TCL1A translocation] confirmed by FISH. PMID: 24966976
  7. The results suggest that CD3G should be studied as a candidate gene for autoimmunity and that CD3gamma deficiency should be considered among other primary immunodeficiencies with predominantly autoimmune manifestations. PMID: 24910257
  8. deficiency results in autoimmunity PMID: 23590417
  9. In conclusion, TCR-gamma expression seems to be rare and is confined to cytotoxic primary cutaneous T-cell lymphomas PMID: 23348211
  10. roles of CD3G polymorphisms in predisposition for HCC PMID: 22731821
  11. Data show that the expressions of CD3, CD4 were significantly associated with overall survival(OS) of non-small cell lung cancer (NSCLC) patients. PMID: 22482414
  12. A transgenic T cell receptor gammadelta-low expressing subset of T cells accumulates in mouse epidermis after IL-23 injections. PMID: 21984702
  13. Data show that TCRzeta phosphorylation signal pathways were affected in CD3gamma(-/-) primary and HVS-transformed T cells. PMID: 21764047
  14. CD3gamma and CD3delta evolved from a common precursor gene to optimize major histocompatibility antigen (MHC)-triggered alphabeta T cell receptor activation. PMID: 20660709
  15. human CD3gamma has specific NFAT binding motifs that differentially bind NFATc1, NFATc2, and NF-kappa B p50 PMID: 12374807
  16. CD3 gamma contributes to, but is not absolutely required for, the regulation of T cell receptor trafficking in resting and antigen-stimulated mature T lymphocytes. PMID: 12794121
  17. there is one molecule each of CD3delta and CD3gamma in the surface TCR/CD3 complex PMID: 15459203
  18. significant rigidity was observed in use of the (D/E)xxxL(L/I) motif in CD3gamma, due to an absolute requirement for the position of this signal in the context of the TCR complex and for a highly conserved lysine residue, K128, not present in CD3delta PMID: 15778375
  19. The CD3 gamma gene promoter is lymphoid specific, initiates transcription from multiple start sites and contains two core promoters capable of recruiting the general transcription machinery through specificity protein binding motifs. PMID: 15879122
  20. Several amino acids are essential for an optimal association between CD3gamma and CD3 and the assembly of a cell-surface expressed TCR-CD3deltagammazeta2 complex. PMID: 16916653
  21. The CD3 gamma immune recognition receptor cytoplasmic domain binds to acidic and mixed phospholipid vesicles with a binding strength that correlates with the protein net charge and the presence of clustered basic amino acid residues. PMID: 17176095
  22. HTLV-I infection initiates a process leading to a complete loss of CD3 membrane expression by an epigenetic mechanism which continues along time, despite an early silencing of the viral genome. PMID: 17822534
  23. (Pre)malignant transformation in refractory celiac disease type II correlates with defective synthesis or defective association of the TCR chains, resulting in loss of surface TCR-CD3 expression PMID: 18815285
  24. human eosinophils express a functional gammadeltaTCR/CD3 with similar, but not identical, characteristics to gammadeltaTCR from gammadeltaT cells PMID: 19536290
  25. In this review, some of the genetic and epigenetic factors that determine the correct assembly and structure of the TCR/CD3 complex are summarized--REVIEW PMID: 19860678
  26. Protein level controlled by OTHER KINASES PROTEINS PMID: 1709425

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Involvement in disease
Immunodeficiency 17 (IMD17)
Subcellular Location
Cell membrane; Single-pass type I membrane protein.
Database Links

HGNC: 1675

OMIM: 186740

KEGG: hsa:917

STRING: 9606.ENSP00000431445

UniGene: Hs.2259

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