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BCL2L11

The protein encoded by this gene belongs to the BCL-2 protein family. BCL-2 family members form hetero- or homodimers and act as anti- or pro-apoptotic regulators that are involved in a wide variety of cellular activities. The protein encoded by this gene contains a Bcl-2 homology domain 3 (BH3). It has been shown to interact with other members of the BCL-2 protein family and to act as an apoptotic activator. The expression of this gene can be induced by nerve growth factor (NGF), as well as by the forkhead transcription factor FKHR-L1, which suggests a role of this gene in neuronal and lymphocyte apoptosis. Transgenic studies of the mouse counterpart suggested that this gene functions as an essential initiator of apoptosis in thymocyte-negative selection. Several alternatively spliced transcript variants of this gene have been identified.
Protein class

Transporters

Predicted location

Intracellular

Single cell type specificity

Cell type enhanced (Plasma cells, Early spermatids)

Immune cell specificity

Low immune cell specificity

Cell line specificity

Cell line enhanced (U-266/70)

Interaction

Forms heterodimers with a number of antiapoptotic Bcl-2 proteins, including MCL1, BCL2, BCL2L1 isoform Bcl-X(L), BCL2A1/BFL-1, BHRF1, and BCL2L2/BCLW (PubMed:11997495, PubMed:27013495, PubMed:18812174). Does not heterodimerize with proapoptotic proteins such as BAD, BOK or BAK. Identified in a complex containing BCL2L11, DYNLL1 and BCL2L1 isoform Bcl-X(L); BH3 integrity is required for BCL2L1-binding. Interacts with YWHAZ. When phosphorylated, interacts with TRIM2; this interaction is associated with ubiquitination and degradation (PubMed:21478148). Interacts with MCL1; may sequester BCL2L11 to prevent its pro-apoptotic activity (PubMed:27013495, PubMed:17389404). Interacts with GIMAP5 (PubMed:16509771). Interacts with BCL2L10/BCL-B (PubMed:23235460, PubMed:23563182, PubMed:22498477). [Isoform BimEL]: Interacts (when phosphorylated) with USP27X; the interaction leads to BCL2L11 deubiquitination and stabilization (PubMed:27013495). Interacts with humanin; the interaction prevents BIM-induced apoptosis. [Isoform BimL]: Does not interact with humanin. [Isoform BimS]: Interacts with BAX; the interaction may lead to BAX activation through conformational change (PubMed:11997495). Does not interact with humanin (PubMed:15661735). [Isoform Bim-alpha3]: Interacts with BAX; the interaction may lead to BAX activation through conformational change.

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