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The molecular grammar of protein disorder guiding genome-binding locations.


ABSTRACT: Intrinsically disordered regions (IDRs) direct transcription factors (TFs) towards selected genomic occurrences of their binding motif, as exemplified by budding yeast's Msn2. However, the sequence basis of IDR-directed TF binding selectivity remains unknown. To reveal this sequence grammar, we analyze the genomic localizations of >100 designed IDR mutants, each carrying up to 122 mutations within this 567-AA region. Our data points at multivalent interactions, carried by hydrophobic-mostly aliphatic-residues dispersed within a disordered environment and independent of linear sequence motifs, as the key determinants of Msn2 genomic localization. The implications of our results for the mechanistic basis of IDR-based TF binding preferences are discussed.

SUBMITTER: Jonas F 

PROVIDER: S-EPMC10250222 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature

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The molecular grammar of protein disorder guiding genome-binding locations.

Jonas Felix F   Carmi Miri M   Krupkin Beniamin B   Steinberger Joseph J   Brodsky Sagie S   Jana Tamar T   Barkai Naama N  

Nucleic acids research 20230601 10


Intrinsically disordered regions (IDRs) direct transcription factors (TFs) towards selected genomic occurrences of their binding motif, as exemplified by budding yeast's Msn2. However, the sequence basis of IDR-directed TF binding selectivity remains unknown. To reveal this sequence grammar, we analyze the genomic localizations of >100 designed IDR mutants, each carrying up to 122 mutations within this 567-AA region. Our data points at multivalent interactions, carried by hydrophobic-mostly alip  ...[more]

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