Results 31 to 40 of about 29,854 (231)

The small protein CydX is required for function of cytochrome bd oxidase in Brucella abortus. [PDF]

open access: yes, 2012
A large number of hypothetical genes potentially encoding small proteins of unknown function are annotated in the Brucella abortus genome. Individual deletion of 30 of these genes identified four mutants, in BAB1_0355, BAB2_0726, BAB2_0470, and BAB2_0450
de Jong, Maarten F   +5 more
core   +3 more sources

Putting handcuffs on the chaperonin GroEL [PDF]

open access: yesProceedings of the National Academy of Sciences, 2013
Oligomeric, ring-shaped nano-machines that are fueled by ATP are ubiquitous in all three kingdoms of life and are involved in a wide range of processes that include, for example, protein folding, protein degradation, DNA and RNA remodeling, and protein insertion into membranes (for review, see ref. 1).
openaire   +2 more sources

Myxococcus xanthus DK1622 Coordinates Expressions of the Duplicate groEL and Single groES Genes for Synergistic Functions of GroELs and GroES

open access: yesFrontiers in Microbiology, 2017
Chaperonin GroEL (Cpn60) requires cofactor GroES (Cpn10) for protein refolding in bacteria that possess single groEL and groES genes in a bicistronic groESL operon.
Yue-zhong Li   +6 more
doaj   +1 more source

The Chaperonin GroEL Is Destabilized by Binding of ADP [PDF]

open access: yesJournal of Biological Chemistry, 1995
The urea-induced dissociation and subsequent conformational transitions of the nucleotide-bound form of GroEL were studied by light scattering, 4,4'-bis(1-anilino-8- naphthalenesulfonic acid) binding, and intrinsic tyrosine fluorescence. Magnesium ion alone (10 mM) stabilizes GroEL and leads to coordination of the structural transitions monitored by ...
B M, Gorovits, P M, Horowitz
openaire   +2 more sources

Mechanisms involved in the functional divergence of duplicated GroEL chaperonins in Myxococcus xanthus DK1622. [PDF]

open access: yesPLoS Genetics, 2013
The gene encoding the GroEL chaperonin is duplicated in nearly 30% of bacterial genomes; and although duplicated groEL genes have been comprehensively determined to have distinct physiological functions in different species, the mechanisms involved have ...
Yan Wang   +9 more
doaj   +1 more source

The Functional Differences between the GroEL Chaperonin of Escherichia coli and the HtpB Chaperonin of Legionella pneumophila Can Be Mapped to Specific Amino Acid Residues

open access: yesBiomolecules, 2021
Group I chaperonins are a highly conserved family of essential proteins that self-assemble into molecular nanoboxes that mediate the folding of cytoplasmic proteins in bacteria and organelles.
Karla N. Valenzuela-Valderas   +3 more
doaj   +1 more source

GroEL is an immunodominant surface-exposed antigen of Rickettsia typhi

open access: yesPLoS ONE, 2021
Rickettsioses are neglected and emerging potentially fatal febrile diseases that are caused by obligate intracellular bacteria, rickettsiae. Rickettsia (R.) typhi and R.
Jessica Rauch   +16 more
doaj   +2 more sources

Back to GroEL-Assisted Protein Folding: GroES Binding-Induced Displacement of Denatured Proteins from GroEL to Bulk Solution

open access: yesBiomolecules, 2020
The main events in chaperone-assisted protein folding are the binding and ligand-induced release of substrate proteins. Here, we studied the location of denatured proteins previously bound to the GroEL chaperonin resulting from the action of the GroES co-
Victor Marchenkov   +4 more
doaj   +1 more source

In vivo client proteins of the chaperonin GroEL-GroES provide insight into the role of chaperones in protein evolution

open access: yesFrontiers in Molecular Biosciences, 2023
Protein folding is often hampered by intermolecular protein aggregation, which can be prevented by a variety of chaperones in the cell. Bacterial chaperonin GroEL is a ring-shaped chaperone that forms complexes with its cochaperonin GroES, creating ...
Hideki Taguchi, Ayumi Koike-Takeshita
doaj   +1 more source

Ligands regulate GroEL thermostability

open access: yesFEBS Letters, 1997
Escherichia coli heat‐shock proteins GroEL and GroES stimulate (in an ATP‐dependent manner) the folding of various proteins. In this study scanning microcalorimetry was applied to investigate GroEL thermostability in the presence of its ligands. Mg2+ and K+ ions stabilize while ADP destabilizes the GroEL molecule against the action of temperature ...
Surin, A.K   +5 more
openaire   +2 more sources

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