Recombinant Mouse B-cell linker protein(Blnk)

Code CSB-YP879429MO
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Source Yeast
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Code CSB-EP879429MO
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Source E.coli
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Code CSB-EP879429MO-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP879429MO
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Source Baculovirus
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Code CSB-MP879429MO
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Source Mammalian cell
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Product Details

Purity >85% (SDS-PAGE)
Target Names Blnk
Uniprot No. Q9QUN3
Alternative Names Blnk; Bash; Ly57; Slp65B-cell linker protein; B-cell adapter containing a SH2 domain protein; B-cell adapter containing a Src homology 2 domain protein; Cytoplasmic adapter protein; Lymphocyte antigen 57; Src homology 2 domain-containing leukocyte protein of 65 kDa; Slp-65
Species Mus musculus (Mouse)
Expression Region 1-457
Protein Length full length protein
Tag Info The following tags are available.
N-terminal His-tagged
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form Lyophilized powder
Buffer before Lyophilization 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℃/-80℃. 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.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet Please contact us to get it.

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Target Background

(From Uniprot)
Functions as a central linker protein, downstream of the B-cell receptor (BCR), bridging the SYK kinase to a multitude of signaling pathways and regulating biological outcomes of B-cell function and development. Plays a role in the activation of ERK/EPHB2, MAP kinase p38 and JNK. Modulates AP1 activation. Important for the activation of NF-kappa-B and NFAT. Plays an important role in BCR-mediated PLCG1 and PLCG2 activation and Ca(2+) mobilization and is required for trafficking of the BCR to late endosomes. However, does not seem to be required for pre-BCR-mediated activation of MAP kinase and phosphatidyl-inositol 3 (PI3) kinase signaling. May be required for the RAC1-JNK pathway. Plays a critical role in orchestrating the pro-B cell to pre-B cell transition. May play an important role in BCR-induced B-cell apoptosis.
Gene References into Functions
  1. The pre-B-cell receptor (pre-BCR) signaling molecules BLNK, BTK and BANK1 were positively regulated by the ZFP521 gene, leading to enhancement of the pre-BCR signaling pathway. PMID: 26522721
  2. Authors demonstrate leukemogenicity of PAX5-PML by introducing it into normal mouse pro-B cells; B-cell linker protein (Blnk) is repressed by PAX5-PML in leukemia cells; enforced expression of Blnk increases survival despite introduction of PAX5-PML. PMID: 26703467
  3. B-cell linker protein expression contributes to controlling allergic and autoimmune diseases by mediating IL-10 production in regulatory B cells. PMID: 23534976
  4. Tumor suppressor BLNK is a target of transcriptional activation by PU.1 and Spi-B in the B cell lineage. PMID: 22956576
  5. a novel negative feedback regulation of BCR signaling by HPK1-mediated phosphorylation, ubiquitination, and subsequent degradation of the activated BLNK PMID: 22334673
  6. CMTM7 functions to link sIgM and BLNK in the plasma membrane. PMID: 22363743
  7. Live cell imaging and co-immunoprecipitation experiments confirmed that both SLP65 and CIN85 are both required for the onset and progression phases of B-cell antigen receptor signal transduction. PMID: 21822214
  8. malignant transformation of Btk/Slp65 double-deficient pre-B cells is independent of deregulated V(D)J recombination activity. PMID: 21030983
  9. Swip-1 provides a membrane scaffold that is required for the Syk-, SLP-65-, and PLCgamma2-dependent BCR-induced calcium flux. PMID: 20194721
  10. malignant transformation of Slp65(-/-) pre-B cells involves disruption of the p19(Arf)-Mdm2-p53 tumor suppressor pathway PMID: 20008789
  11. role in B cell Ag receptor-mediated antigen processing PMID: 11859098
  12. The direct recruitment of BLNK to immunoglobulin alpha couples the B-cell antigen receptor to distal signaling pathways PMID: 11909947
  13. role for BLNK and perhaps BCR signaling, in the regulation of kappa light chain expression and continued immature B cell differentiation PMID: 12119344
  14. BLNK as a direct target of the transcription factor Pax5 PMID: 12387741
  15. SLP-65 regulates a developmental program that promotes differentiation and limits pre-B cell expansion, thereby acting as a tumor suppressor. PMID: 12436112
  16. Differentiation regulator SLP-65 (an adaptor protein also called BLNK or BASH) inhibits pre-B-cell leukaemia in mice PMID: 12761551
  17. constitutive active Btk can substitute for SLP-65 as a tumor suppressor. PMID: 12835482
  18. SLP65/BLNK is a substrate of SHP-1. PMID: 14635051
  19. The role is defined for BASH in the B cell receptor signaling pathway required for receptor editing, which operates in the development of normal B cell repertoire and contributes to establishing B cell tolerance. PMID: 15528332
  20. the mechanism of SLP-65 membrane recruitment and suggest that leucine zipper motifs are essential interaction domains of signaling proteins PMID: 15654340
  21. Review of downstream signaling molecules SLP-65 and Btk cooperating to limit proliferation and induce differentiation of pre-B cells, thereby acting as tumor suppressors to prevent pre-B cell leukemia. PMID: 16300960
  22. BASH-mediated BCR signaling primarily controls B cell survival and maturation, with BAFF-R signaling and its inhibition of PKCdelta acting as a secondary regulator. PMID: 16481047
  23. Btk and SLP-65 transmit signals that induce cellular maturation and Ig L chain rearrangement independently of their role in termination of pre-B cell expansion. PMID: 16585544
  24. BLNK-/- PLCgamma2-/- mice had compounded defects in B cell maturation compared with either single mutant, suggesting that these two molecules cooperatively or synergistically signaled B lymphopoiesis. PMID: 16585562
  25. BASH-deficient mice rearrange kappaL-chain gene locus and down-regulate pre-BCR PMID: 16794253
  26. These data reveal a hierarchy of pre-BCR function that determines the development and plasticity of early B cells. PMID: 17007932
  27. pre-BCR-triggered developmental events can be mediated by BLNK-independent pathways that are negatively regulated by c-Cbl PMID: 17202354
  28. somatic loss of BLNK and concomitant mutations leading to constitutive activation of Jak/STAT5 pathway result in the generation of pre-B-cell leukemia PMID: 19047679
  29. BLNK recruits active H-Ras to the BCR complex, which is essential for sustained surface expression of BCR in the form of the cap and for the signal leading to functional ERK activation PMID: 19218240

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Subcellular Location Cytoplasm, Cell membrane
Tissue Specificity Expressed in the spleen and weakly in thymus, no expression was seen in liver, testis, or brain. Expressed in B-cell lines representing different developmental stages from the pre-B to the plasma cell stage, but not in a T-cell or a fibroblast cell line.
Database Links

KEGG: mmu:17060

STRING: 10090.ENSMUSP00000057844

UniGene: Mm.9749


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