Anti-CBL Antibody Picoband®

CBL (Cbl proto-oncogene) is also known as C-CBL, RNF55, CBL2 and E3 ubiquitin protein ligase. CBL is mapped to chromosome 11q23.3-qter by molecular characterization of the breakpoints in 2 somatic cell hybrids. The encoded protein is one of the enzymes required for targeting substrates for degradation by the proteasome. This protein mediates the transfer of ubiquitin from ubiquitin conjugating enzymes (E2) to specific substrates. This protein also contains an N-terminal phosphotyrosine binding domain that allows it to interact with numerous tyrosine-phosphorylated substrates and target them for proteasome degradation. As such it functions as a negative regulator of many signal transduction pathways. This gene has been found to be mutated or translocated in many cancers including acute myeloid leukaemia. Mutations in this gene are also the cause of Noonan syndrome-like disorder.

Actin Binding Proteins, Actin, etc., Angiogenesis, Cancer, Cancer Metabolism, Cardiovascular, Cytoskeleton, Cytoskeleton/ECM, DNA/RNA, Epigenetics and Nuclear Signaling, Hypoxia, Invasion/Microenvironment, Metabolism, Metabolism Processes, Microfilaments, Neurodegenerative Disease, Neurology Process, Neuroscience, Pathways and Processes, Response To Hypoxia, RNA Processing, Signal Transduction, Translation

Binds to actin on the surface of endothelial cells; once bound, angiogenin is endocytosed and translocated to the nucleus. Stimulates ribosomal RNA synthesis including that containing the initiation site sequences of 45S rRNA. Cleaves tRNA within anticodon loops to produce tRNA-derived stress-induced fragments (tiRNAs) which inhibit protein synthesis and triggers the assembly of stress granules (SGs) . Angiogenin induces vascularization of normal and malignant tissues. Angiogenic activity is regulated by interaction with RNH1 in vivo. .

1. Joazeiro, C. A. P., Wing, S. S., Huang, H., Leverson, J. D., Hunter, T., Liu, Y.-C. The tyrosine kinase negative regulator c-Cbl as a RING-type, E2-dependent ubiquitin-protein ligase. Science 286: 309-312, 1999. 2. Martinelli, S., De Luca, A., Stellacci, E., Rossi, C., Checquolo, S., Lepri, F., Caputo, V., Silvano, M., Buscherini, F., Consoli, F., Ferrara, G., Digilio, M. C., and 14 others.Heterozygous germline mutations in the CBL tumor-suppressor gene cause a Noonan syndrome-like phenotype. Am. J. Hum. Genet. 87: 250-257, 2010. 3. Wei, S., Rocchi, M., Archidiacono, N., Sacchi, N., Romeo, G., Gatti, R. A. Physical mapping of the human chromosome 11q23 region containing the ataxia-telangiectasia locus. Cancer Genet. Cytogenet. 46: 1-8, 1990.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.

Nucleus . Secreted, extracellular space, extracellular matrix, basement membrane. Nucleus, nucleolus. Rapidly endocytosed by target cells and translocated to the nucleus where it accumulates in the nucleolus and binds to DNA.