R 2021

4D-CHAINS

EVANGELIDIS, Thomas and Konstantinos TRIPSIANES

Basic information

Original name

4D-CHAINS

Authors

EVANGELIDIS, Thomas (300 Greece, belonging to the institution) and Konstantinos TRIPSIANES (300 Greece, guarantor, belonging to the institution)

Edition

2021

Other information

Language

English

Type of outcome

Software

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14740/21:00133155

Organization unit

Central European Institute of Technology

Keywords in English

protein;NMR;assignment;structure;

Technical parameters

Software licencovaný firmě AIffinity (www.aiffinity.cz, IČO 11992719), licenční smlouva uzavřená dne 20.10.2021.

Tags

Změněno: 5/3/2024 10:46, Mgr. Eva Dubská

Abstract

V originále

Automated methods for NMR structure determination of proteins are continuously becoming more robust. However, current methods addressing larger, more complex targets rely on analyzing 6–10 complementary spectra, suggesting the need for alternative approaches. Here, we describe 4D-CHAINS/autoNOE-Rosetta, a complete pipeline for NOE-driven structure determination of medium- to larger-sized proteins. The 4D-CHAINS algorithm analyzes two 4D spectra recorded using a single, fully protonated protein sample in an iterative ansatz where common NOEs between different spin systems supplement conventional through-bond connectivities to establish assignments of sidechain and backbone resonances at high levels of completeness and with a minimum error rate. The 4D-CHAINS assignments are then used to guide automated assignment of long-range NOEs and structure refinement in autoNOE-Rosetta. Our results on four targets ranging in size from 15.5 to 27.3 kDa illustrate that the structures of proteins can be determined accurately and in an unsupervised manner in a matter of days.

Links

MUNI/E/0086/2017, interní kód MU
Name: From protein sequence to NMR structure in a matter of days using CHAINS/Rosetta
Investor: Masaryk University, Promoting quality excellence