Results 1 to 10 of about 1,760,654 (353)

A unifying mechanism for protein transport through the core bacterial Sec machinery [PDF]

open access: yesOpen Biology, 2023
Encapsulation and compartmentalization are fundamental to the evolution of cellular life, but they also pose a challenge: how to partition the molecules that perform biological functions—the proteins—across impermeable barriers into sub-cellular ...
William J. Allen, Ian Collinson
doaj   +2 more sources

Protein transport into mitochondria [PDF]

open access: yesCurrent Opinion in Microbiology, 1987
Mitochondria are made up of two membrane systems that subdivide this organelle into two aqueous subcompartments: the matrix, which is enclosed by the inner membrane, and the intermembrane space, which is located between the inner and the outer membrane.
Hartl, Franz-Ulrich   +3 more
core   +4 more sources

Regulation of Protein Transport Pathways by the Cytosolic Hsp90s [PDF]

open access: yesBiomolecules, 2022
The highly conserved molecular chaperone heat shock protein 90 (Hsp90) is well-known for maintaining metastable proteins and mediating various aspects of intracellular protein dynamics. Intriguingly, high-throughput interactome studies suggest that Hsp90
Anna G. Mankovich, Brian C. Freeman
doaj   +2 more sources

Proteomic screen reveals diverse protein transport between connected neurons in the visual system [PDF]

open access: yesCell Reports, 2022
Summary: Intercellular transfer of toxic proteins between neurons is thought to contribute to neurodegenerative disease, but whether direct interneuronal protein transfer occurs in the healthy brain is not clear.
Lucio M. Schiapparelli   +10 more
doaj   +2 more sources

Electrophysiological characterization of a diverse group of sugar transporters from Trichoderma reesei

open access: yesScientific Reports, 2021
Trichoderma reesei is an ascomycete fungus known for its capability to secrete high amounts of extracellular cellulose- and hemicellulose-degrading enzymes. These enzymes are utilized in the production of second-generation biofuels and T.
Sami Havukainen   +5 more
doaj   +1 more source

An extracellular vesicle targeting ligand that binds to Arc proteins and facilitates Arc transport in vivo

open access: yeseLife, 2023
Communication between distant cells can be mediated by extracellular vesicles (EVs) that deliver proteins and RNAs to recipient cells. Little is known about how EVs are targeted to specific cell types.
Peter H Lee   +4 more
doaj   +1 more source

Naturally Occurring N-Terminal Fragments of Bovine Milk Osteopontin Are Transported across Models of the Intestinal Barrier

open access: yesBiomedicines, 2023
Osteopontin (OPN) is a bioactive integrin-binding protein found in high concentrations in milk, where it is present both as a full-length protein and as several N-terminally derived fragments.
Brian Christensen   +5 more
doaj   +1 more source

Analysis of Dot/Icm Type IVB Secretion System Subassemblies by Cryoelectron Tomography Reveals Conformational Changes Induced by DotB Binding

open access: yesmBio, 2020
Type IV secretion systems (T4SSs) are sophisticated nanomachines used by many bacterial pathogens to translocate protein and DNA substrates across a host cell membrane.
Donghyun Park   +4 more
doaj   +1 more source

Towards a molecular mechanism underlying mitochondrial protein import through the TOM and TIM23 complexes

open access: yeseLife, 2022
Nearly all mitochondrial proteins need to be targeted for import from the cytosol. For the majority, the first port of call is the translocase of the outer membrane (TOM complex), followed by a procession of alternative molecular machines, conducting ...
Holly C Ford   +5 more
doaj   +1 more source

The ESX-1 Substrate PPE68 Has a Key Function in ESX-1-Mediated Secretion in Mycobacterium marinum

open access: yesmBio, 2022
Mycobacteria use specialized type VII secretion systems (T7SSs) to secrete proteins across their diderm cell envelope. One of the T7SS subtypes, named ESX-1, is a major virulence determinant in pathogenic species such as Mycobacterium tuberculosis and ...
Merel P. M. Damen   +7 more
doaj   +1 more source

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