Recombinant Human B-cell lymphoma 6 protein(BCL6)

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Code CSB-EP002625HUe1
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Product Details

Purity Greater than 85% as determined by SDS-PAGE.
Target Names BCL6
Uniprot No. P41182
Research Area Epigenetics and Nuclear Signaling
Alternative Names B cell CLL/lymphoma 6; B cell lymphoma 6 protein; B-cell lymphoma 5 protein; B-cell lymphoma 6 protein; BCL 5; Bcl 6; BCL-5; BCL-6; BCL5; BCL6; BCL6_HUMAN; BCL6A; cys his2 zinc finger transcription factor; cys-his2 zinc finger transcription factor; LAZ 3; LAZ 3 protein; LAZ3; Lymphoma Associated Zinc Finger Gene On Chromosome 3 (LAZ3); Lymphoma associated zinc finger gene on chromosome 3; Protein LAZ-3; ZBTB 27; ZBTB27; Zinc finger and BTB domain containing protein 27; Zinc finger and BTB domain-containing protein 27 (ZBTB27); Zinc finger and BTB domain-containing protein 27; Zinc Finger Protein 51 (ZNF51); Zinc finger protein 51; zinc finger transcription factor BCL6S; ZNF 51; ZNF51
Species Homo sapiens (Human)
Source E.coli
Expression Region 1-706aa
Target Protein Sequence MASPADSCIQFTRHASDVLLNLNRLRSRDILTDVVIVVSREQFRAHKTVLMACSGLFYSIFTDQLKCNLSVINLDPEINPEGFCILLDFMYTSRLNLREGNIMAVMATAMYLQMEHVVDTCRKFIKASEAEMVSAIKPPREEFLNSRMLMPQDIMAYRGREVVENNLPLRSAPGCESRAFAPSLYSGLSTPPASYSMYSHLPVSSLLFSDEEFRDVRMPVANPFPKERALPCDSARPVPGEYSRPTLEVSPNVCHSNIYSPKETIPEEARSDMHYSVAEGLKPAAPSARNAPYFPCDKASKEEERPSSEDEIALHFEPPNAPLNRKGLVSPQSPQKSDCQPNSPTESCSSKNACILQASGSPPAKSPTDPKACNWKKYKFIVLNSLNQNAKPEGPEQAELGRLSPRAYTAPPACQPPMEPENLDLQSPTKLSASGEDSTIPQASRLNNIVNRSMTGSPRSSSESHSPLYMHPPKCTSCGSQSPQHAEMCLHTAGPTFPEEMGETQSEYSDSSCENGAFFCNECDCRFSEEASLKRHTLQTHSDKPYKCDRCQASFRYKGNLASHKTVHTGEKPYRCNICGAQFNRPANLKTHTRIHSGEKPYKCETCGARFVQVAHLRAHVLIHTGEKPYPCEICGTRFRHLQTLKSHLRIHTGEKPYHCEKCNLHFRHKSQLRLHLRQKHGAITNTKVQYRVSATDLPPELPKAC
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 79.0 kDa
Protein Length Full Length
Tag Info Tag-Free
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. 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.
Troubleshooting
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 Basically, we can dispatch the products out in 3-7 working days after receiving your orders. 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.

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Target Data

Function Transcriptional repressor mainly required for germinal center (GC) formation and antibody affinity maturation which has different mechanisms of action specific to the lineage and biological functions. Forms complexes with different corepressors and histone deacetylases to repress the transcriptional expression of different subsets of target genes. Represses its target genes by binding directly to the DNA sequence 5'-TTCCTAGAA-3' (BCL6-binding site) or indirectly by repressing the transcriptional activity of transcription factors. In GC B-cells, represses genes that function in differentiation, inflammation, apoptosis and cell cycle control, also autoregulates its transcriptional expression and up-regulates, indirectly, the expression of some genes important for GC reactions, such as AICDA, through the repression of microRNAs expression, like miR155. An important function is to allow GC B-cells to proliferate very rapidly in response to T-cell dependent antigens and tolerate the physiological DNA breaks required for immunglobulin class switch recombination and somatic hypermutation without inducing a p53/TP53-dependent apoptotic response. In follicular helper CD4(+) T-cells (T(FH) cells), promotes the expression of T(FH)-related genes but inhibits the differentiation of T(H)1, T(H)2 and T(H)17 cells. Also required for the establishment and maintenance of immunological memory for both T- and B-cells. Suppresses macrophage proliferation through competition with STAT5 for STAT-binding motifs binding on certain target genes, such as CCL2 and CCND2. In response to genotoxic stress, controls cell cycle arrest in GC B-cells in both p53/TP53-dependedent and -independent manners. Besides, also controls neurogenesis through the alteration of the composition of NOTCH-dependent transcriptional complexes at selective NOTCH targets, such as HES5, including the recruitment of the deacetylase SIRT1 and resulting in an epigenetic silencing leading to neuronal differentiation.
Gene References into Functions
  1. our exploratory study suggests that EOMES, BCL6 and GZMB gene expression are aberrant within the PB T cell transcriptome of HT patients. The association of this transcription signature with the heterogeneity of HT and disease control is suggested. PMID: 29319368
  2. Cryptic t(3;8)(q27;q24) and/or MYC-BCL6 linkage associated with MYC expression by immunohistochemistry is frequent in multiple-hit B-cell lymphomas PMID: 28665415
  3. BCL6 overexpression in SHR reduced blood pressure, NLRP3 expression and inflammation in the renal cortex of SHR PMID: 29072703
  4. Although BCL6 controls follicular helper T cells activity in humans and mice, the role of miR-31 is restricted to human follicular helper T cell differentiation, reflecting a species specificity of the miR-31 action. PMID: 29133396
  5. Aberrant CD10 and BCL6 expression defines a subset of MCLs with higher mean Ki-67 index and higher prevalence of MUM1 expression PMID: 28628241
  6. BCL6 is a growth promoting factor in glioblastoma and glioma. PMID: 28356518
  7. IFN gamma induced upregulation of BCL6 was dependent on the classical STAT1 signaling pathway, and affected both major BCL6 variants. Interestingly, although IFN alpha induced stronger STAT1 phosphorylation than IFN gamma, it only slightly upregulated BCL6 in multiple myeloma lines. PMID: 29510136
  8. Findings demonstrate that BCL6 expression is downregulated by miR-519d which targets its 3 '-UTR. Also, BCL6 mediates the repression of miR-519d on cell proliferation and invasive capability of gastric cancer cells. PMID: 29510377
  9. In Pakistani population, the frequency of GCB type DLBCL [diffuse large B cell lymphoma ]expressing CD10 and BCL6 is 37.5%, and non- GCB type DLBCL [diffuse large B cell lymphoma ] expressing MUM1 is 62.5%. PMID: 29056123
  10. BCOR internal tandem duplication and/or nuclear immunoreactivity for BCOR or BCL6 can aid in the diagnosis of primitive myxoid mesenchymal tumor of infancy and help to differentiate it from congenital infantile fibrosarcoma. PMID: 28256570
  11. our findings provide a novel apoptotic regulatory pathway in which LITAF, as a transcription factor, inhibits the expression of BCL6, which leads to activation of the intrinsic mitochondrial pathway and tumor apoptosis. PMID: 27764808
  12. Ikaros regulates expression of the BCL6/BACH2 axis in acute lymphoblastic leukemia cells. PMID: 28030830
  13. our work casts new light on the biology of mantle cell lymphoma (MCL), revealing the role of SOX11 exerting a functional effect through the repression of BCL6 transcription in MCL cells PMID: 26710884
  14. BCL6 inhibitors have been shown to exert potent effects against these tumor types. Moreover, mechanism-based combinations of BCL6 inhibitors with other agents have yielded synergistic and often quite dramatic activity. Hence, there is a compelling case to accelerate the development of BCL6-targeted therapies for translation to the clinical setting PMID: 27881582
  15. High BCL6 expression is associated with good response to chemotherapy in acute lymphoblastic leukemia. PMID: 27015556
  16. BCL6 expression is present in isolated cortical neurons, granule cells in the cerebellum, scattered glial cells, and in some cells of the ependyma and choroid plexus. PMID: 26862951
  17. We show that human follicular lymphomas are dependent on BCL6 PMID: 28232365
  18. Aberrant BCL6 expression was strongly associated with poor reproductive outcomes in IVF cycles in women with unexplained infertility. PMID: 29126613
  19. EBNA3C inhibits the transcriptional activity of the Bcl6 promoter through interaction with the cellular protein IRF4. PMID: 28738086
  20. Data suggest that B-cell CLL/lymphoma 6 is a promising candidate as a single diagnostic biomarker for detection of endometriosis in women with otherwise unexplained infertility and may be associated with endometrial dysfunction, including progesterone resistance. PMID: 27222232
  21. The aim of this study was to investigate the clinical significance of three immune cell-related transcription factors, T-bet, GATA-3 and Bcl-6 in bladder cancer in Tunisian patients. PMID: 27237631
  22. analysis of role of BCL6 in maintaining activated B cell diffuse large B cell lymphoma reveals that ABC-DLBCL is a BCL6-dependent disease that can be targeted by rationally designed inhibitors that exceed the binding affinity of natural BCL6 ligands PMID: 27482887
  23. Results provide evidence that BCL6 overexpression is involved in genomic instability in multiple myeloma cells. PMID: 28544233
  24. Our data reveal a regulatory role of BCL6 in inhibiting antiviral resistance factors in follicular Th cells PMID: 28550121
  25. the high expressions of BCL6 and Lewis y antigen are associated with development, high tumor burden, and worse prognosis of ovarian cancer and targeting BCL6 could be a novel therapeutic strategy for ovarian cancer treatment. PMID: 28671040
  26. both mouse and human B cells, IFN-gamma synergized with B cell receptor, toll-like receptor, and/or CD40 activation signals to promote cell-intrinsic expression of the GC master transcription factor, B cell lymphoma 6 protein. PMID: 27069113
  27. MicroRNA-544 down-regulates both Bcl6 and Stat3 to inhibit tumor growth of human triple negative breast cancer PMID: 27186677
  28. miR-10a directly recognizes the 3'-UTR of the BCL6 transcript and regulated BCL6 expression. PMID: 27815824
  29. This work identified BCL6 as a novel biomarker for early prediction of cerebral palsy. PMID: 28315684
  30. Bcl-6 expression in circulating follicular helper-like T cells may represent a reliable marker for the disease activity in systemic lupus erythematosus PMID: 27818202
  31. In addition, subsequent single-crystal X-ray diffraction analysis of F1324/BCL6(5-129) complex revealed that the high affinity of F1324 was caused by effective interaction of its side chains while its main chain structure was similar to that of BcoR(Arg498-514Pro). To our knowledge, F1324 is the strongest BCL6-binding peptide yet reported. PMID: 27856253
  32. We report the case of a 7-month-old girl with atypical oculo-facio-cardio-dental syndrome (OFCD). A novel de novo pathogenic mutation in the BCL6 interacting co-repressor gene (BCOR) (c.4540C>T; p.Arg1514*), was identified on the X chromosome PMID: 28317252
  33. JAK2 is a direct BCL6 target gene; BCL6 bound to the JAK2 promoter PMID: 27268052
  34. Deregulated BCL6 expression caused by hypermethylation and TET2 mutations may result in skewed follicular helper T cell differentiation and eventually contribute to angioimmunoblastic T-cell lymphoma and peripheral T-cell lymphoma development in patients PMID: 27921272
  35. miR-339-5p inhibits migration and invasion in ovarian cancer by targeting NACC1 and BCL6. miR-339-5p may be a biomarker of metastasis in ovarian cancer; NACC1 had a predictive value for ovarian cancer progression PMID: 26553360
  36. Data show there was a positive correlation between B cell lymphoma 6 (Bcl-6) and B lymphocyte-induced maturation protein 1 (Blimp-1) at the level of mRNA. PMID: 27363279
  37. miR-155 overexpression plays a promoting role in the proliferative, migratory and invasive behavior of OSCC cells. Its effects on OSCC are possibly associated with its regulation of the BCL6/cyclin D2 axis. PMID: 26986233
  38. BCL6 Rearrangements are associated with Diffuse Large B-Cell Lymphoma. PMID: 26319027
  39. Bcl6, by interacting with the co-factors NcoR2 and HDAC3, plays a pivotal role in controlling IRF7 induction and antiviral signaling priming. PMID: 26728228
  40. diffuse large B-cell lymphoma patients with either MYC/BCL6 rearrangements or MYC/BCL6 co-expression did not always have poorer prognosis PMID: 26573234
  41. BCL6 promotes proliferation and survival of trophoblastic cells. PMID: 27029530
  42. Studies indicate that germinal centers (GC) B cells represent the normal counterpart of most B-cell lymphomas, which are often characterized by deregulated B cell lymphoma 6 (BCL6) expression or BCL6-mediated pathways. PMID: 26566802
  43. Bcl-6 mRNA and protein levels, as well as the frequencies of Bcl-6(+)CD4(+) cells were significantly increased in polyp tissues compared with normal controls. PMID: 25711734
  44. Follicular helper T cells differentiation is a multistage process involving BCL6 and other transcription factors, cytokines, and costimulation through ICOS and several other molecules. (Review) PMID: 26120879
  45. These results suggest that STAT6 plays an important role in regulating Sp1 and BCL6 through STAT2 to exert the anti-proliferative effects of type I IFN. PMID: 26945968
  46. Identified BCL6 to be a target of miR-10a in patients with Acute Myeloid Leukemia (AML). PMID: 26590574
  47. Study demonstrates that survivin belongs to the Tfh cell phenotype and ensures their optimal function by regulating transcriptional activity of Bcl-6. PMID: 26343374
  48. BCL6 repression of EP300 in human diffuse large B cell lymphoma cells provides a basis for rational combinatorial therapy. PMID: 21041953
  49. Taken together, our results demonstrated that miR-187-3p played a pivotal role on NSCLC through inhibiting cell proliferation, migration, invasion, and promoting apoptosis by targeting oncogenic BCL6. PMID: 26845350
  50. BCL6 gene expression is plays a role in the pathogenesis of diffuse large B-cell lymphoma. PMID: 26414904

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Involvement in disease Chromosomal aberrations involving BCL6 are a cause of B-cell non-Hodgkin lymphomas (B-cell NHL), including diffuse large B-cell lymphoma and follicular lymphoma. Approximately 40% of diffuse large B-cell lymphomas and 5 to 10% of follicular lymphomas are associated with chromosomal translocations that deregulate expression of BCL6 by juxtaposing heterologous promoters to the BCL6 coding domain. Translocation t(3;14)(q27;q32). Translocation t(3;22)(q27;q11) with immunoglobulin gene regions. Translocation t(3;7)(q27;p12) with IKZF1 gene 5'non-coding region. Translocation t(3;6)(q27;p21) with Histone H4. Translocation t(3;16)(q27;p11) with IL21R. Translocation t(3;13)(q27;q14) with LCP1.; DISEASE: Note=A chromosomal aberration involving BCL6 may be a cause of a form of B-cell leukemia. Translocation t(3;11)(q27;q23) with POU2AF1/OBF1.; DISEASE: Note=A chromosomal aberration involving BCL6 may be a cause of lymphoma. Translocation t(3;4)(q27;p11) with ARHH/TTF.
Subcellular Location Nucleus
Tissue Specificity Expressed in germinal center T- and B-cells and in primary immature dendritic cells.
Database Links

HGNC: 1001

OMIM: 109565

KEGG: hsa:604

STRING: 9606.ENSP00000232014

UniGene: Hs.478588

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