Results 21 to 30 of about 15,061 (184)

Chaperonin GroEL Reassembly: An Effect of Protein Ligands and Solvent Composition

open access: yesBiomolecules, 2014
Chaperonin GroEL is a complex oligomeric heat shock protein (Hsp60) assisting the correct folding and assembly of other proteins in the cell. An intriguing question is how GroEL folds itself.
Nataliya Ryabova   +3 more
doaj   +1 more source

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

Design and analytical validation of a duplex PCR for Ehrlichia and Rickettsia detection in ticks

open access: yesRevista Colombiana de Ciencias Pecuarias, 2018
Background: Ehrlichia and Rickettsia are two major rickettsial genera transmitted by ticks that affect a number of wild and domestic animal species and human populations around the world.
Juan C. Pérez Pérez   +4 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

In Vivo Incorporation of Photoproteins into GroEL Chaperonin Retaining Major Structural and Functional Properties

open access: yesMolecules, 2023
The incorporation of photoproteins into proteins of interest allows the study of either their localization or intermolecular interactions in the cell.
Victor Marchenkov   +8 more
doaj   +1 more source

Probing the functional mechanism of Escherichia coli GroEL using circular permutation. [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: The Escherichia coli chaperonin GroEL subunit consists of three domains linked via two hinge regions, and each domain is responsible for a specific role in the functional mechanism.
Tomohiro Mizobata   +5 more
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

A structural model for GroEL–polypeptide recognition [PDF]

open access: yesProceedings of the National Academy of Sciences, 1997
A monomeric peptide fragment of GroEL, consisting of residues 191–376, is a mini-chaperone with a functional chaperoning activity. We have solved the crystal structure at 1.7 Å resolution of GroEL(191–376) with a 17-residue N-terminal tag. The N-terminal tag of one molecule binds in the active site of a neighboring molecule in the crystal. This appears
A M, Buckle, R, Zahn, A R, Fersht
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

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