Recombinant Human Transcription Factor 7 (TCF7) Protein (His&Myc)

Name: Recombinant Human Transcription Factor 7 (TCF7) Protein (His&Myc)
Brand: Beta LifeScience
SKU: BLC-07558P
Availability: InStock

Greater than 85% as determined by SDS-PAGE.

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Product Overview

Description	Recombinant Human Transcription Factor 7 (TCF7) Protein (His&Myc) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 85% as determined by SDS-PAGE.
Uniprotkb	P36402
Target Symbol	TCF7
Synonyms	(TCF-7)(T-cell-specific transcription factor 1)(T-cell factor 1)(TCF-1)
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-10His&C-Myc
Target Protein Sequence	MPQLDSGGGGAGGGDDLGAPDELLAFQDEGEEQDDKSRDSAAGPERDLAELKSSLVNESEGAAGGAGIPGVPGAGAGARGEAEALGREHAAQRLFPDKLPEPLEDGLKAPECTSGMYKETVYSAFNLLMHYPPPSGAGQHPQPQPPLHKANQPPHGVPQLSLYEHFNSPHPTPAPADISQKQVHRPLQTPDLSGFYSLTSGSMGQLPHTVSWFTHPSLMLGSGVPGHPAAIPHPAIVPPSGKQELQPFDRNLKTQAESKAEKEAKKPTIKKPLNAFMLYMKEMRAKVIAECTLKESAAINQILGRRWHALSREEQAKYYELARKERQLHMQLYPGWSARDNYGKKKRRSREKHQESTTETNWPRELKDGNGQESLSMSSSSSPA
Expression Range	1-384aa
Protein Length	Full Length
Mol. Weight	49.1 kDa
Research Area	Epigenetics And Nuclear Signaling
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	Transcriptional activator involved in T-cell lymphocyte differentiation. Necessary for the survival of CD4(+) CD8(+) immature thymocytes. Isoforms lacking the N-terminal CTNNB1 binding domain cannot fulfill this role. Binds to the T-lymphocyte-specific enhancer element (5'-WWCAAAG-3') found in the promoter of the CD3E gene. Represses expression of the T-cell receptor gamma gene in alpha-beta T-cell lineages. Required for the development of natural killer receptor-positive lymphoid tissue inducer T-cells. TLE1, TLE2, TLE3 and TLE4 repress transactivation mediated by TCF7 and CTNNB1.May also act as feedback transcriptional repressor of CTNNB1 and TCF7L2 target genes.
Subcellular Location	Nucleus.
Protein Families	TCF/LEF family
Database References	HGNC: 11639 OMIM: 189908 KEGG: hsa:6932 STRING: 9606.ENSP00000340347 UniGene: Hs.573153
Tissue Specificity	Predominantly expressed in T-cells. Also detected in proliferating intestinal epithelial cells and in the basal epithelial cells of mammary gland epithelium.

Gene Functions References

Our study provides a new mechanism for chromatin occupancy of Tcf7 and uncovers the physiological significance of Uch37 during early vertebrate development by regulating the Wnt/beta-catenin pathway. PMID: 28198400
Results demonstrated that TCF7 expression is upregulated by LOC728196 which operates as the sponge for miR-513c contributing to glioma cell growth and invasion by modulating. PMID: 30179681
LncRNATCF7 overexpression promoted the proliferation and migration of brain neoplasm glioma cells. PMID: 29091867
The results showed SNPs near TCF7 were associated with decreased expression of TCF7 mRNA in PBMCs from patients with SLE and suggested that the mRNA expression of the gene may be correlated with the pathogenesis of SLE. PMID: 28144936
We demonstrated that the AR-miR-1 axis negatively regulates the novel oncogenic factor, TCF7. Dysregulation of TCF7 promoted a survival advantage and resistance to androgen deprivation, suggesting its therapeutic potential for castration-resistant prostate cancer. PMID: 28220803
It promotes invasiveness and self-renewal of human non-small cell lung cancer cells. The potential role of lncTCF7 up regulation in NSCLC metastasis and suggest a promising potential to suppress lncTCF7 for NSCLC patients. PMID: 27766570
High expression of TCF7 is associated with osteosarcoma. PMID: 27683056
Findings indicate that breast cancer cells with a hyperactive AF1q/TCF7/CD44 regulatory axis in the primary sites may represent "metastatic founder cells" which have invasive properties. PMID: 26079538
TCF7 plays critical roles in lung diseases [review] PMID: 26289446
Tcf7 levels are lower in islets taken from patients with type 2 diabetes. Knockdown of TCF7 in islets impairs the cytoprotective responsiveness to GIP and enhances the magnitude of apoptotic injury. PMID: 26642437
we show that TCF7 is a direct target of miR-34a in prostate cancer that has metastasized to the bone PMID: 25436980
induction of expression activates the Wnt signaling pathway, leading to priming of liver cancer stem cells self-renewal and tumor propagation PMID: 25842979
RUNX2 signaling pathways with their partners TCF7 and FGFR1/2 may not be involved in CCD pathogenesis PMID: 25738174
Results suggest ivermectin as therapeutic WNT protein-TCF transcription factor pathway response blocker to treat WNT-TCF-dependent diseases including multiple cancers. PMID: 25143352
miRNAs inhibited the expression of the luciferase reporter constructs containing 3'UTRs of these genes and downregulated protein expression of TERT and the TCF7 transcription factor, which mediates the canonical Wnt pathway. PMID: 24551047
we establish that ATF2 family members physically and functionally interact with TCF1/LEF1 factors to promote target gene expression and hematopoietic tumor cell growth PMID: 23966864
Studied the expression of TCF/LEF and SFRP family members (SFRP1 and SFRP3) to gain a better understanding of biological signaling pathways responsible for epidemiology and clinical parameters of clear cell RCC (cRCC). PMID: 23572277
in this review, we will focus on the function of beta-catenin/TCF-1 pathway in the regulation of thymic and peripheral T cell differentiation processes--{REVIEW} PMID: 22535304
The repression of syndecan-2 by Wnt/beta-catenin/TCF signaling contributes to the resistance of osteosarcoma cells to doxorubicin. PMID: 22550000
findings show that induction of a dominant negative C-clamp version of TCF1 (dnTCF1E) induces p21 expression and a stall in the growth of DLD1 colon cancer cells; results indicate that a rapid-response WNT/p21 circuit is driven by C-clamp target gene selection PMID: 22778133
Results suggest that Tcf-1 may contribute to pathogenesis of acquired aplastic anemia by regulating downstream gene expression such as c-myc and CD44. PMID: 21881822
In this review we present mounting evidence for the interdependency of TCF7/LEF1 variant expression and functions with cell lineage and cell state. [Review] PMID: 22111711
Findings demonstrate that t-DARPP regulates beta-catenin/TCF activity, thereby implicating a novel oncogenic signaling in upper gastrointestinal cancers. PMID: 21447180
Data show that upon HIPK2-mediated phosphorylation, TCF3 is replaced with positively acting TCF1 at a target promoter. PMID: 21285352
Transgenic T cell factor 1 (TCF1) binds to regulatory regions of the IL17 gene and directly regulates IL17A and IL17F gene expression. PMID: 21339363
TCF7 is involved in genetic risk to Type I Diabetes, although the associations observed for both the intronic SNP rs17653687 and the nonsynonymous change encoded by rs5742913 are relatively modes. PMID: 19956102
beta-catenin and TCF inversely control the expression of the EphB2/EphB3 receptors and their ligand ephrin-B1 in colorectal cancer and along the crypt-villus axis. PMID: 12408869
A polymorphism in ths gene, C883A, is associated with type 1 diabetes. PMID: 12765974
Enforced expression of TCF-1 in transgenic mice yields an expanded Ly-49A subset of natural killer (NK) cells; TCF-1 regulates stable induction of Ly-49A gene expression by formation of a nucleoprotein complex at the Ly-49A promoter. PMID: 12847244
TCF1 is phosphorylated and inhibited by Wnt signal transduction through the Tak1 pathway PMID: 14960582
Ly-49A effectively limits Ag-driven T cell proliferation, cytokine production, and changes in surface receptor expression, and effectively limits Ag-specific CD4 cell responses even in the presence of sustained autoantigen expression in vivo PMID: 15778344
Involvement of transcription factor 7 (T cell factor-1) in the wingless type protein (WNT) signaling pathway not only regulates T cell development, but also peripheral T cell differentiation. PMID: 16424171

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.