7SGA

[C-S] DNA mismatch in a self-assembling rhombohedral lattice

7SGA の概要

• エントリーDOI: 10.2210/pdb7sga/pdb
• 関連するPDBエントリー: 7SD6
• 分子名称: DNA (5'-D(*GP*AP*GP*CP*AP*GP*CP*CP*TP*GP*TP*CP*TP*GP*GP*AP*CP*AP*TP*CP*A)-3'), DNA (5'-D(P*CP*CP*AP*(IMC)P*AP*CP*A)-3'), DNA (5'-D(P*GP*GP*CP*TP*GP*CP*T)-3'), ... (4 entities in total)
• 機能のキーワード: tensegrity triangle, self-assembling crystal, metal-mediated mismatch, dna
• 由来する生物種: synthetic construct; 詳細
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 12771.42

構造登録者

Vecchioni, S.,Lu, B.,Bernfeld, W.,Seeman, N.C.,Sha, R.,Ohayon, Y.P. (登録日: 2021-10-05, 公開日: 2022-10-19, 最終更新日: 2023-10-25)

主引用文献

Vecchioni, S.,Lu, B.,Livernois, W.,Ohayon, Y.P.,Yoder, J.B.,Yang, C.F.,Woloszyn, K.,Bernfeld, W.,Anantram, M.P.,Canary, J.W.,Hendrickson, W.A.,Rothschild, L.J.,Mao, C.,Wind, S.J.,Seeman, N.C.,Sha, R.
Metal-Mediated DNA Nanotechnology in 3D: Structural Library by Templated Diffraction.
Adv Mater, :e2201938-e2201938, 2023

PubMed Abstract: DNA double helices containing metal-mediated DNA (mmDNA) base pairs have been constructed from Ag and Hg ions between pyrimidine:pyrimidine pairs with the promise of nanoelectronics. Rational design of mmDNA nanomaterials has been impractical without a complete lexical and structural description. Here, we explore the programmability of structural DNA nanotechnology toward its founding mission of self-assembling a diffraction platform for biomolecular structure determination. We employed the tensegrity triangle to build a comprehensive structural library of mmDNA pairs via X-ray diffraction and elucidated generalized design rules for mmDNA construction. We uncovered two binding modes: N3-dominant, centrosymmetric pairs and major groove binders driven by 5-position ring modifications. Energy gap calculations showed additional levels in the lowest unoccupied molecular orbitals (LUMO) of mmDNA structures, rendering them attractive molecular electronic candidates. This article is protected by copyright. All rights reserved.

PubMed: 36939292
DOI: 10.1002/adma.202201938

実験手法

X-RAY DIFFRACTION (3.15 Å)