J 2021

Investigation of the structure and dynamics of gallium binding to high-affinity peptides elucidated by multi-scale simulation, quantum chemistry, NMR and ITC dagger

TAYLOR, C., N. SCHONBERGER, Alice LANÍKOVÁ, M. PATZSCHKE, B. DROBOT et. al.

Basic information

Original name

Investigation of the structure and dynamics of gallium binding to high-affinity peptides elucidated by multi-scale simulation, quantum chemistry, NMR and ITC dagger

Authors

TAYLOR, C., N. SCHONBERGER, Alice LANÍKOVÁ (203 Czech Republic, belonging to the institution), M. PATZSCHKE, B. DROBOT, Lukáš ŽÍDEK (203 Czech Republic, guarantor, belonging to the institution) and F. LEDERER

Edition

Physical Chemistry Chemical Physics, CAMBRIDGE, Royal Society of Chemistry, 2021, 1463-9076

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10403 Physical chemistry

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.945

RIV identification code

RIV/00216224:14740/21:00121617

Organization unit

Central European Institute of Technology

UT WoS

000633047800001

Keywords in English

high-affinity peptides; multi-scale simulation; quantum chemistry; NMR; ITC

Tags

Tags

International impact, Reviewed
Změněno: 15/10/2024 14:26, Ing. Jana Kuchtová

Abstract

V originále

Gallium (as Ga3+) is a Group IIIa metal and its recovery from wastewaters has become increasingly important for its reuse. The use of peptides for recycling offers a low-cost and environmentally-friendly option but the structural characteristics of peptides likely to bind Ga3+ are largely unknown. Multiple computational methods, coupled with experimental verification via NMR and Isothermal Calorimetry (ITC), were used to establish that Ga3+ binds with high affinity to peptide sequences and to elucidate the structural characteristics that contributed. It was demonstrated that peptide pre-organisation is key to Ga3+ binding and that a favourable binding position is necessarily governed by the size and shape of the electrostatic environment as much as individual electrostatic interactions with peptide residues themselves. Given favourable conditions, Ga3+ retrieved plausible binding positions involving both charged and uncharged residues that greatly increases the range of bonding possibilities with other peptide sequences and offers insights for binding other metals. The addition of pH buffer substantially improved the affinity of Ga3+ and a structural role for a buffer component was demonstrated.

Links

871037, interní kód MU
Name: iNEXT-Discovery: Infrastructure for transnational access and discovery in integrated structural biology (Acronym: iNEXT- Discovery)
Investor: European Union, RI Research Infrastructures (Excellent Science)
90127, large research infrastructures
Name: CIISB II