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Bcl6 | B-cell lymphoma 6 protein homolog; Transcriptional repressor mainly required for germinal center (GC) formation and antibody affinity maturation which has different mechanisms of action specific to the lineage and biological functions. Forms complexes with different corepressors and histone deacetylases to repress the transcriptional expression of different subsets of target genes. Represses its target genes by binding directly to the DNA sequence 5'-TTCCTAGAA-3' (BCL6-binding site) or indirectly by repressing the transcriptional activity of transcription factors. In GC B-cells, repres [...] (707 aa) | ||||
Ptcd1 | Pentatricopeptide repeat-containing protein 1, mitochondrial; Mitochondrial protein implicated in negative regulation of leucine tRNA levels, as well as negative regulation of mitochondria- encoded proteins and COX activity. Affects also the 3'-processing of mitochondrial tRNAs. (695 aa) |