4Z3C

Zinc finger region of human TET3 in complex with CpG DNA

4Z3C の概要

• エントリーDOI: 10.2210/pdb4z3c/pdb
• 分子名称: DNA (5'-D(*GP*CP*CP*AP*AP*CP*GP*TP*TP*GP*GP*C)-3'), Methylcytosine dioxygenase, UNKNOWN ATOM OR ION, ... (5 entities in total)
• 機能のキーワード: zinc finger, dna-binding, structural genomics, structural genomics consortium, sgc, dna binding protein-dna complex, dna binding protein/dna
• 由来する生物種: Homo sapiens (Human); 詳細
• タンパク質・核酸の鎖数: 3
• 化学式量合計: 13354.70

構造登録者

Liu, K.,Xu, C.,Tempel, W.,Dong, A.,Arrowsmith, C.H.,Bountra, C.,Edwards, A.M.,Min, J.,Structural Genomics Consortium (SGC) (登録日: 2015-03-31, 公開日: 2015-04-29, 最終更新日: 2023-09-27)

主引用文献

Xu, C.,Liu, K.,Lei, M.,Yang, A.,Li, Y.,Hughes, T.R.,Min, J.
DNA Sequence Recognition of Human CXXC Domains and Their Structural Determinants.
Structure, 2017

PubMed Abstract: The CXXC domain, first identified as the reader of unmodified CpG dinucleotide, plays important roles in epigenetic regulation by targeting various activities to CpG islands. Here we systematically measured and compared the DNA-binding selectivities of all known human CXXC domains by different binding assays, and complemented the existing function-based classification of human CXXC domains with a classification based on their DNA selectivities. Through a series of crystal structures of CXXC domains with DNA ligands, we unravel the molecular mechanisms of how these CXXC domains, including single CXXC domains and tandem CXXC-PHD domains, recognize distinct DNA ligands, which further supports our classification of human CXXC domains and also provides insights into selective recruitment of chromatin modifiers to their respective targets via CXXC domains recognizing different genomic DNA sequences. Our study facilitates the understanding of the relationship between the DNA-binding specificities of the CXXC proteins and their biological functions.

PubMed: 29276034
DOI: 10.1016/j.str.2017.11.022

実験手法

X-RAY DIFFRACTION (1.57 Å)