Mouse E3 ubiquitin-protein ligase CBL-B ELISA Kit | Cblb elisa kit
Mouse E3 ubiquitin-protein ligase CBL-B ELISA Kit
Principle of the Assay: The microtiter plate provided in this kit has been pre-coated with an antibody specific to target antigen. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody preparation specific for target antigen and then avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. Then a TMB substrate solution is added to each well. Only those wells that contain target antigen, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm +/- 2 nm. The concentration of target antigen in the samples is then determined by comparing the O.D. of the samples to the standard curve.
NCBI and Uniprot Product Information
Uniprot Description
Cbl-b: 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. May also be involved in EGFR ubiquitination and internalization. Interacts with SH3 domain-containing proteins LCK, CRK and SORBS1. Interacts with LCP2 and ZAP70. May interact with CBL. Interacts with SH3 domain-containing proteins VAV1, FYN, FGR, PLCG1, GRB2, CRKL, PIK3R1 and SH3KBP1/CIN85. Identified in heterotrimeric complexes with SH3KBP1/CIN85, CD2AP and ARHGEF7, where one CBLB peptide binds two copies of the other protein. Interacts with poly-ubiquitinated proteins. Dimerization is required for the binding of poly-ubiquitin, but not for the binding of mono-ubiquitin. 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. 4 isoforms of the human protein are produced by alternative splicing.
Protein type: Adaptor/scaffold; Ubiquitin ligase; Ligase; Calcium-binding; EC 6.3.2.-; Ubiquitin conjugating system
Cellular Component: cytoplasm; lipid raft; nucleoplasm; nucleus
Molecular Function: calcium ion binding; coenzyme F420-0 gamma-glutamyl ligase activity; coenzyme F420-2 alpha-glutamyl ligase activity; ligase activity; metal ion binding; phosphotyrosine binding; protein binding; protein kinase binding; ribosomal S6-glutamic acid ligase activity; signal transducer activity; ubiquitin-protein ligase activity; UDP-N-acetylmuramoylalanyl-D-glutamyl-2,6-diaminopimelate-D-alanyl-D-alanine ligase activity; zinc ion binding
Biological Process: cell surface receptor linked signal transduction; immune response; negative regulation of alpha-beta T cell proliferation; negative regulation of T cell receptor signaling pathway; positive regulation of protein catabolic process; positive regulation of T cell anergy; signal transduction; T cell activation
Research Articles on Cblb
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Product Notes
The Mouse Cblb cblb (Catalog #AAA2882317) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA2882317 ELISA Kit recognizes Mouse Cblb. It is sometimes possible for the material contained within the vial of "E3 ubiquitin-protein ligase CBL-B, ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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