CBLB (gene)

Last updated
CBLB
Protein CBLB PDB 2ooa.png
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases CBLB , Cbl-b, RNF56, Nbla00127, Cbl proto-oncogene B
External IDs OMIM: 604491 MGI: 2146430 HomoloGene: 15856 GeneCards: CBLB
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001033238

RefSeq (protein)

NP_001028410

Location (UCSC) Chr 3: 105.66 – 105.87 Mb Chr 16: 51.85 – 52.03 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

CBL-B is an E3 ubiquitin-protein ligase that in humans is encoded by the CBLB gene. [5] [6] CBLB is a member of the CBL gene family.

Function

CBL-B functions as a negative regulator of T-cell activation. [7] CBL-B expression in T cells causes ligand-induced T cell receptor down-modulation, controlling the activation degree of T cells during antigen presentation. [8] [9]

Clinical significance

Mutation of the CBLB gene has been associated with autoimmune conditions such as type 1 diabetes. [10] [11]

Interactions

CBLB has been shown to interact with:

Related Research Articles

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References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000114423 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000022637 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Keane MM, Rivero-Lezcano OM, Mitchell JA, Robbins KC, Lipkowitz S (July 1995). "Cloning and characterization of cbl-b: a SH3 binding protein with homology to the c-cbl proto-oncogene". Oncogene. 10 (12): 2367–77. PMID   7784085.
  6. "Entrez Gene: CBLB Cas-Br-M (murine) ecotropic retroviral transforming sequence b".
  7. Wallner S, Gruber T, Baier G, Wolf D (2012). "Releasing the brake: targeting Cbl-b to enhance lymphocyte effector functions". Clin. Dev. Immunol. 2012: 692639. doi: 10.1155/2012/692639 . PMC   3328896 . PMID   22550535.
  8. Naramura M, Jang IK, Kole H, Huang F, Haines D, Gu H (August 2002). "Pc-Cbl and Cbl-b regulate T cell responsiveness by promoting ligand-induced TCR down-modulation". Nature Immunology. 3 (12): 1192–9. doi:10.1038/ni855. PMID   12415267. S2CID   13354434.
  9. Karwacz K, Bricogne C, MacDonald D, Arce F, Bennett CL, Collins M, Escors D (August 2011). "PD-L1 co-stimulation contributes to ligand-induced T cell receptor down-modulation on CD8+ T cells". EMBO Molecular Medicine. 3 (10): 581–92. doi:10.1002/emmm.201100165. PMC   3191120 . PMID   21739608.
  10. Hoyne GF, Flening E, Yabas M, Teh C, Altin JA, Randall K, Thien CB, Langdon WY, Goodnow CC (February 2011). "Visualizing the role of Cbl-b in control of islet-reactive CD4 T cells and susceptibility to type 1 diabetes". J. Immunol. 186 (4): 2024–32. doi: 10.4049/jimmunol.1002296 . PMID   21248249.
  11. Yokoi N, Fujiwara Y, Wang HY, Kitao M, Hayashi C, Someya T, Kanamori M, Oiso Y, Tajima N, Yamada Y, Seino Y, Ikegami H, Seino S (March 2008). "Identification and functional analysis of CBLB mutations in type 1 diabetes". Biochem. Biophys. Res. Commun. 368 (1): 37–42. doi:10.1016/j.bbrc.2008.01.032. PMID   18201552.
  12. 1 2 3 Elly C, Witte S, Zhang Z, Rosnet O, Lipkowitz S, Altman A, Liu YC (February 1999). "Tyrosine phosphorylation and complex formation of Cbl-b upon T cell receptor stimulation". Oncogene. 18 (5): 1147–56. doi: 10.1038/sj.onc.1202411 . PMID   10022120.
  13. Schulze WX, Deng L, Mann M (2005). "Phosphotyrosine interactome of the ErbB-receptor kinase family". Mol. Syst. Biol. 1: E1–E13. doi:10.1038/msb4100012. PMC   1681463 . PMID   16729043.
  14. Ettenberg SA, Keane MM, Nau MM, Frankel M, Wang LM, Pierce JH, Lipkowitz S (March 1999). "cbl-b inhibits epidermal growth factor receptor signaling". Oncogene. 18 (10): 1855–66. doi: 10.1038/sj.onc.1202499 . PMID   10086340.
  15. 1 2 Lavagna-Sévenier C, Marchetto S, Birnbaum D, Rosnet O (June 1998). "The CBL-related protein CBLB participates in FLT3 and interleukin-7 receptor signal transduction in pro-B cells". J. Biol. Chem. 273 (24): 14962–7. doi: 10.1074/jbc.273.24.14962 . PMID   9614102.
  16. Magnifico A, Ettenberg S, Yang C, Mariano J, Tiwari S, Fang S, Lipkowitz S, Weissman AM (October 2003). "WW domain HECT E3s target Cbl RING finger E3s for proteasomal degradation". J. Biol. Chem. 278 (44): 43169–77. doi: 10.1074/jbc.M308009200 . PMID   12907674.
  17. Szymkiewicz I, Kowanetz K, Soubeyran P, Dinarina A, Lipkowitz S, Dikic I (October 2002). "CIN85 participates in Cbl-b-mediated down-regulation of receptor tyrosine kinases". J. Biol. Chem. 277 (42): 39666–72. doi: 10.1074/jbc.M205535200 . PMID   12177062.

Further reading