5YAN

Deconstructing the Salt-Bridge Network of a Computationally Designed Collagen Heterotrimer

5YAN の概要

• エントリーDOI: 10.2210/pdb5yan/pdb
• 分子名称: Collagen, ... (4 entities in total)
• 機能のキーワード: collagen, heterotrimer, ion pairs, structural protein
• 由来する生物種: synthetic construct; 詳細
• タンパク質・核酸の鎖数: 6
• 化学式量合計: 18487.46

構造登録者

Fan, S. (登録日: 2017-09-01, 公開日: 2018-06-13, 最終更新日: 2025-04-09)

主引用文献

Zheng, H.,Lu, C.,Lan, J.,Fan, S.,Nanda, V.,Xu, F.
How electrostatic networks modulate specificity and stability of collagen.
Proc. Natl. Acad. Sci. U.S.A., 115:6207-6212, 2018

PubMed Abstract: One-quarter of the 28 types of natural collagen exist as heterotrimers. The oligomerization state of collagen affects the structure and mechanics of the extracellular matrix, providing essential cues to modulate biological and pathological processes. A lack of high-resolution structural information limits our mechanistic understanding of collagen heterospecific self-assembly. Here, the 1.77-Å resolution structure of a synthetic heterotrimer demonstrates the balance of intermolecular electrostatics and hydrogen bonding that affects collagen stability and heterospecificity of assembly. Atomistic simulations and mutagenesis based on the solved structure are used to explore the contributions of specific interactions to energetics. A predictive model of collagen stability and specificity is developed for engineering novel collagen structures.

PubMed: 29844169
DOI: 10.1073/pnas.1802171115

実験手法

X-RAY DIFFRACTION (1.77 Å)