Technical Data
CBLB, ID (E3 Ubiquitin-protein Ligase CBL-B, Signal Transduction Protein CBL-B, SH3-binding Protein CBL-B, Casitas B-lineage Lymphoma Proto-oncogene b, RING Finger Protein 56, Nbla00127, RNF56)
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. It 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. It may also be involved in EGFR ubiquitination and internalization.

Suitable for use in ELISA, Western Blot, Immunofluorescence and Flow Cytometry. Other applications not tested.

Recommended Dilution:
Western Blot: 1:1000
Immunohistochemistry: 1:50-1:100
Flow Cytometry: 1:10-1:50
Optimal dilutions to be determined by the researcher.

Storage and Stability:
May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
PabIgGAffinity Purified
200ul-20CBlue IceHumanRabbit
As reported
KLH-conjugated synthetic peptide mapping to a fragment of residues within amino acids 103-130 in the central region of human CBLB, UniProt Accession #Q13191. Species sequence homology: xenopus, mouse, rat
Purified by Protein A affinity chromatography.
Supplied as a liquid in PBS, pH 7.2, 0.09% sodium azide.
Recognizes human CBLB.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
1. Lavagna-Sevenier,C.,, J. Biol. Chem. 273(24), 14962-14967 (1998). 2. Yokoi,N.,, Biochem. Biophys. Res. Commun. 368(1), 37-42 (2008).