CARD11: a CARD (caspase recruitment domain) protein that belongs to the membrane-associated guanylate kinase (MAGUK) family. MAGUK proteins function as molecular scaffolds for the assembly of multiprotein complexes at specialized regions of the plasma membrane. Contains an N-terminal CARD domain, a central coiled-coil domain, and a C-terminal region containing a PDZ, an SH3, and a GUK. Its CARD domain associates with the CARD domain of BCL10. BCL10 activates NF-kappaB through the IkappaB kinase complex in response to upstream stimuli. Apparently activates NF-kappaB and induce the phosphorylation of BCL10. Detected in adult peripheral blood leukocytes, thymus, spleen and liver. Also found in promyelocytic leukemia HL-60 cells, chronic myelogenous leukemia K562 cells, Burkitt's lymphoma Raji cells and colorectal adenocarcinoma SW480 cells.
Protein type: Adaptor/scaffold
Chromosomal Location of Human Ortholog: 5|5 G2
Cellular Component: CBM complex; cytoplasm; extracellular exosome; immunological synapse; membrane; membrane raft; plasma membrane; T cell receptor complex
Molecular Function: CARD domain binding; protein binding
Biological Process: B cell differentiation; B cell proliferation; homeostasis of number of cells; I-kappaB kinase/NF-kappaB signaling; immunoglobulin production; interleukin-2 secretion; lymphocyte activation; positive regulation of B cell proliferation; positive regulation of cytokine production; positive regulation of I-kappaB kinase/NF-kappaB signaling; positive regulation of interleukin-2 biosynthetic process; positive regulation of NF-kappaB transcription factor activity; positive regulation of T cell activation; positive regulation of T cell proliferation; regulation of apoptosis; regulation of B cell differentiation; regulation of immune response; regulation of T cell differentiation; signal transduction; T cell activation; T cell costimulation; thymic T cell selection; TORC1 signaling
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