• Product name

    Recombinant Human CBLB protein (Tagged) (Biotin)
    See all CBLB proteins and peptides
  • Purity

    > 90 % SDS-PAGE.
    The biotin to protein ratio is 0.6-1 as determined by the HABA assay.
  • Endotoxin level

    < 1.000 Eu/µg
  • Expression system

    Escherichia coli
  • Accession

  • Protein length

    Protein fragment
  • Animal free

  • Nature

    • Species

    • Sequence

    • Predicted molecular weight

      48 kDa including tags
    • Amino acids

      39 to 426
    • Tags

      His tag N-Terminus , Avi tag N-Terminus
    • Additional sequence information

      Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin. AviTag sequence GLNDIFEAQKIEWHE.
  • Conjugation



Our Abpromise guarantee covers the use of ab246097 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications


  • Form

  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Upon reconsitution add a carrier protein (0.1% BSA). Store at -20°C or -80°C. Avoid freeze / thaw cycle. Store In the Dark.

    pH: 7.50
    Constituents: 5% Trehalose, 0.95% HEPES, 0.7% Sodium chloride

    0.22 µm filtered

  • Reconstitution
    It is recommended to reconstitute the lyophilized product in sterile deionized water to a final concentration of 1 mg/ml. Solubilize for 30 to 60 minutes at room temperature with occasional gentle mixing. Carrier protein (0.1% HSA or BSA) is strongly recommended for further dilution and long term storage

General Info

  • Alternative names

    • AI429560
    • AI851073
    • Cas Br M (murine) ecotropic retroviral transforming sequence b
    • Casitas B lineage lymphoma b
    • Casitas B lineage lymphoma proto oncogene b
    • Casitas B-lineage lymphoma proto-oncogene b
    • Cbl b
    • CBLB
    • DKFZp686J10223
    • DKFZp779A0729
    • DKFZp779F1443
    • E3 ubiquitin protein ligase CBL B
    • E3 ubiquitin-protein ligase CBL-B
    • EC 6.3.2.-
    • FLJ36865
    • FLJ41152
    • Nbla00127
    • RING finger protein 56
    • RNF56
    • SH3 binding protein CBL B
    • SH3-binding protein CBL-B
    • Signal transduction protein CBL B
    • Signal transduction protein CBL-B
    see all
  • Relevance

    Function: E3 ubiquitin-protein ligase which accepts ubiquitin from specific E2 ubiquitin-conjugating enzymes, and transfers it to substrates, generally promoting their degradation by the proteasome. Negatively regulates TCR (T-cell receptor), BCR (B-cell receptor) and FCER1 (high affinity immunoglobulin epsilon receptor) signal transduction pathways. In naive T-cells, inhibits VAV1 activation upon TCR engagement and imposes a requirement for CD28 costimulation for proliferation and IL-2 production. Also acts by promoting PIK3R1/p85 ubiquitination, which impairs its recruitment to the TCR and subsequent activation. In activated T-cells, inhibits PLCG1 activation and calcium mobilization upon restimulation and promotes anergy. In B-cells, acts by ubiquitinating SYK and promoting its proteasomal degradation. Slightly promotes SRC ubiquitination. May be involved in EGFR ubiquitination and internalization. May be functionally coupled with the E2 ubiquitin-protein ligase UB2D3. Tissue specificity: Expressed in placenta, heart, lung, kidney, spleen, ovary and testis, as well as fetal brain and liver and hematopoietic cell lines, but not in adult brain, liver, pancreas, salivary gland, or skeletal muscle. Present in lymphocytes (at protein level). Pathway: Protein modification; protein ubiquitination. Similarity: Contains 1 Cbl-PTB (Cbl-type phosphotyrosine-binding) domain. Contains 1 RING-type zinc finger. Contains 1 UBA domain. Domain: The N-terminus is composed of the phosphotyrosine binding (PTB) domain, a short linker region and the RING-type zinc finger. The PTB domain, which is also called TKB (tyrosine kinase binding) domain, is composed of three different subdomains: a four-helix bundle (4H), a calcium-binding EF hand and a divergent SH2 domain. The RING-type zinc finger domain mediates binding to an E2 ubiquitin-conjugating enzyme. The UBA domain interacts with poly-ubiquitinated proteins. PTM: Phosphorylated on tyrosine and serine residues upon TCR or BCR activation, and upon various types of cell stimulation. Auto-ubiquitinated upon EGF-mediated cell activation or upon T-cell costimulation by CD28; which promotes proteasomal degradation.
  • Cellular localization

    Cytoplasmic and Nuclear


  • SDS-PAGE - Recombinant Human CBLB protein (Tagged) (Biotin) (ab246097).

    The protein migrates as 45 kDa and 46 kDa under reducing conditions due to glycosylation.


ab246097 has not yet been referenced specifically in any publications.

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