ArticleNature communications2025
Multimeric transcription factor BCL11A utilizes two zinc-finger tandem arrays to bind clustered short sequence motifs.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Bipartite DNA binding domain of transcription factor BCL11B binds clustered short DNA sequence motifs.bioRxiv : the preprint server for biology · 2026Article
- Regulation of BCL11A DNA binding and expression in human erythrocyte precursor HUDEP-2 cells.bioRxiv : the preprint server for biology · 2026Article
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Authors and funding
11 authors.
Funding
Abstract
BCL11A, a transcription factor, is vital for hematopoiesis, including B and T cell maturation and the fetal-to-adult hemoglobin switch. Mutations in BCL11A are linked to neurodevelopmental disorders. BCL11A contains two DNA-binding zinc-finger arrays, low-affinity ZF2-3 and high-affinity ZF4-6, separated by a 300-amino-acid linker. ZF2-3 and ZF4-5 share 73% identity, including five out of six DNA base-interacting residues. These arrays bind similar short sequence motifs in clusters, with the linker enabling a broader binding span. Crystallographic structures of ZF4-6, in complex with oligonucleotides from the β-globin locus region, reveal DNA sequence recognition by residues Asn756 (ZF4), Lys784 and Arg787 (ZF5). A Lys784-to-Thr mutation, linked to a neurodevelopmental disorder with persistent fetal globin expression, reduces DNA binding over 10-fold but gains interaction with a variable base pair. BCL11A isoforms may form oligomers, enhancing chromatin occupancy and repressor functions by allowing multiple copies of both low- and high-affinity ZF arrays to bind DNA. These distinctive properties, apparently conserved among vertebrates, provide essential functional flexibility to this crucial regulator.
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