7ACT

The SARS-CoV-2 nucleocapsid phosphoprotein N-terminal domain in complex with 10mer ssRNA

7ACT の概要

• エントリーDOI: 10.2210/pdb7act/pdb
• 関連するPDBエントリー: 6YI3
• NMR情報: BMRB: 34511
• 分子名称: Nucleoprotein, ssRNA (2 entities in total)
• 機能のキーワード: protein-rna complex, docking, viral protein
• 由来する生物種: Severe acute respiratory syndrome coronavirus 2 (2019-nCoV); 詳細
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 18251.76

構造登録者

Veverka, V. (登録日: 2020-09-11, 公開日: 2020-10-28, 最終更新日: 2024-06-19)

主引用文献

Dinesh, D.C.,Chalupska, D.,Silhan, J.,Koutna, E.,Nencka, R.,Veverka, V.,Boura, E.
Structural basis of RNA recognition by the SARS-CoV-2 nucleocapsid phosphoprotein.
Plos Pathog., 16:e1009100-e1009100, 2020

PubMed Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the coronavirus disease 2019 (COVID-19). SARS-CoV-2 is a single-stranded positive-sense RNA virus. Like other coronaviruses, SARS-CoV-2 has an unusually large genome that encodes four structural proteins and sixteen nonstructural proteins. The structural nucleocapsid phosphoprotein N is essential for linking the viral genome to the viral membrane. Both N-terminal RNA binding (N-NTD) and C-terminal dimerization domains are involved in capturing the RNA genome and, the intrinsically disordered region between these domains anchors the ribonucleoprotein complex to the viral membrane. Here, we characterized the structure of the N-NTD and its interaction with RNA using NMR spectroscopy. We observed a positively charged canyon on the surface of the N-NTD that might serve as a putative RNA binding site similarly to other coronaviruses. The subsequent NMR titrations using single-stranded and double-stranded RNA revealed a much more extensive U-shaped RNA-binding cleft lined with regularly distributed arginines and lysines. The NMR data supported by mutational analysis allowed us to construct hybrid atomic models of the N-NTD/RNA complex that provided detailed insight into RNA recognition.

PubMed: 33264373
DOI: 10.1371/journal.ppat.1009100

実験手法

SOLUTION NMR