Recognition of Dimethylarginine Analogues by Tandem Tudor Domain Protein Spindlin1.

ABSTRACT: Epigenetic readout of the combinatorial posttranslational modification comprised of trimethyllysine and asymmetric dimethylarginine (H3K4me3R8me2a) takes place via biomolecular recognition of tandem Tudor-domain-containing protein Spindlin1. Through comparative thermodynamic data and molecular dynamics simulations, we sought to explore the binding scope of asymmetric dimethylarginine mimics by Spindlin1. Herein, we provide evidence that the biomolecular recognition of H3K4me2R8me2a is not significantly affected when R8me2a is replaced by dimethylarginine analogues, implying that the binding of K4me3 provides the major binding contribution. High-energy water molecules inside both aromatic cages of the ligand binding sites contribute to the reader-histone association upon displacement by his

SUBMITTER: Porzberg MRB 

PROVIDER: S-EPMC8838590 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature