J 2024

Optimizing properties of translocation-enhancing transmembrane proteins

BARTOŠ, Ladislav; Martina DRABINOVÁ a Robert VÁCHA

Základní údaje

Originální název

Optimizing properties of translocation-enhancing transmembrane proteins

Autoři

BARTOŠ, Ladislav; Martina DRABINOVÁ a Robert VÁCHA

Vydání

BIOPHYSICAL JOURNAL, UNITED STATES, CELL PRESS, 2024, 0006-3495

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14740/24:00136035

Organizace

Středoevropský technologický institut – Masarykova univerzita – Repozitář

DOI

https://doi.org/10.1016/j.bpj.2024.04.009

UT WoS

001300570200001

EID Scopus

2-s2.0-85190953360

Klíčová slova anglicky

FORCE-FIELD; MOLECULAR-DYNAMICS; VALIDATION; EXTENSION; PEPTIDES; MEMBRANES

Návaznosti

LX22NPO5103, projekt VaV. 101001470, interní kód Repo. e-INFRA CZ II, velká výzkumná infrastruktura.
Změněno: 4. 6. 2025 00:50, RNDr. Daniel Jakubík

Anotace

V originále

Cell membranes act as semi-permeable barriers, often restricting the entry of large or hydrophilic molecules. Nonetheless, certain amphiphilic molecules, such as antimicrobial and cell-penetrating peptides, can cross these barriers. In this study, we demonstrate that specific properties of transmembrane proteins/peptides can enhance membrane permeation of amphiphilic peptides. Using coarse-grained molecular dynamics with free-energy calculations, we identify key translocation-enhancing attributes of transmembrane proteins/peptides: a continuous hydrophilic patch, charged residues preferably in the membrane center, and aromatic hydrophobic residues. By employing both coarse-grained and atomistic simulations, complemented by experimental validation, we show that these properties not only enhance peptide translocation but also speed up lipid flip-flop. The enhanced flip-flop reinforces the idea that proteins such as scramblases and insertases not only share structural features but also operate through identical biophysical mechanisms enhancing the insertion and translocation of amphiphilic molecules. Our insights offer guidelines for the designing of translocation-enhancing proteins/peptides that could be used in medical and biotechnological applications.
Zobrazeno: 3. 5. 2026 04:35