Results 21 to 30 of about 746,971 (308)

The One That Got Away: How Macrophage-Derived IL-1β Escapes the Mycolactone-Dependent Sec61 Blockade in Buruli Ulcer

open access: yesFrontiers in Immunology, 2022
Buruli ulcer (BU), caused by Mycobacterium ulcerans, is a devastating necrotizing skin disease. Key to its pathogenesis is mycolactone, the exotoxin virulence factor that is both immunosuppressive and cytotoxic.
Belinda S. Hall   +3 more
doaj   +1 more source

Reconstitution of bacterial autotransporter assembly using purified components

open access: yeseLife, 2014
Autotransporters are a superfamily of bacterial virulence factors consisting of an N-terminal extracellular (‘passenger’) domain and a C-terminal β barrel (‘β’) domain that resides in the outer membrane (OM).
Giselle Roman-Hernandez   +2 more
doaj   +1 more source

The C-terminal tail of the bacterial translocation ATPase SecA modulates its activity

open access: yeseLife, 2019
In bacteria, the translocation of proteins across the cytoplasmic membrane by the Sec machinery requires the ATPase SecA. SecA binds ribosomes and recognises nascent substrate proteins, but the molecular mechanism of nascent substrate recognition is ...
Mohammed Jamshad   +10 more
doaj   +1 more source

The gateway to chloroplast: re-defining the function of chloroplast receptor proteins [PDF]

open access: yes, 2012
Chloroplast biogenesis often requires a tight orchestration between gene expression (both plastidial and nuclear) and translocation of similar to 3000 nuclear-encoded proteins into the organelle.
Bölter, Bettina   +2 more
core   +1 more source

Folding of a single domain protein entering the endoplasmic reticulum precedes disulfide formation [PDF]

open access: yes, 2017
The relationship between protein synthesis, folding and disulfide formation within the endoplasmic reticulum (ER) is poorly understood. Previous studies have suggested pre-existing disulfide links are absolutely required to allow protein folding and ...
Bulleid, Neil J.   +3 more
core   +1 more source

The Tat-dependent protein translocation pathway

open access: yesBiomolecular Concepts, 2011
The twin-arginine translocation (Tat) pathway is found in bacteria, archaea, and plant chloroplasts, where it is dedicated to the transmembrane transport of fully folded proteins.
Hou Bo, Brüser Thomas
doaj   +1 more source

Protein Transfer through an F Plasmid-Encoded Type IV Secretion System Suppresses the Mating-Induced SOS Response

open access: yesmBio, 2021
Bacterial type IV secretion systems (T4SSs) mediate the conjugative transfer of mobile genetic elements (MGEs) and their cargoes of antibiotic resistance and virulence genes.
Abu Amar M. Al Mamun   +2 more
doaj   +1 more source

Protein folding causes an arrest of preprotein translocation into mitochondria in vivo [PDF]

open access: yes, 1991
With vital yeast cells, a hybrid protein consisting of the amino- terminal third of the precursor to cytochrome b2 and of the entire dihydrofolate reductase was arrested on the import pathway into mitochondria.
Becker, Karin   +7 more
core   +3 more sources

Proton Translocation in Proteins

open access: yesAnnual Review of Physical Chemistry, 1989
The active transport of protons across the low dielectric barrier imposed by biological membranes is accomplished by a plethora of proteins that span the ca. 40 A of the phospholipid bilayer. The free energy derived from the proton electrochemical potential established by the translocation of these protons can subsequently be used to drive vital ...
Copeland, Robert A., Chan, Sunney I.
openaire   +3 more sources

Dual interaction of scaffold protein Tim44 of mitochondrial import motor with channel-forming translocase subunit Tim23

open access: yeseLife, 2017
Proteins destined for the mitochondrial matrix are targeted to the inner membrane Tim17/23 translocon by their presequences. Inward movement is driven by the matrix-localized, Hsp70-based motor. The scaffold Tim44, interacting with the matrix face of the
See-Yeun Ting   +3 more
doaj   +1 more source

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