[PDF][PDF] Archaeal chaperonins

AT Large, PA Lund - Front Biosci, 2009 - article.imrpress.com
Chaperonins are ubiquitous and essential protein folding machines. They have a striking
structure, with two rings of seven, eight, or nine protomers forming a “double doughnut” …

Functional analysis of Group 2 chaperonins from archaeal species in E. coli

R Shah - 2014 - etheses.bham.ac.uk
The chaperonin proteins form a ubiquitous family of molecular chaperones and are
absolutely required for correct folding or assembly of a subset of proteins in the cell. They …

A modulator domain controlling thermal stability in the Group II chaperonins of Archaea

H Luo, FT Robb - Archives of biochemistry and biophysics, 2011 - Elsevier
Archaeal Group II chaperonins (Cpns) are strongly conserved, considering that their growth
temperatures range from 23 to 122° C. The C-terminal 15–25 residues are hypervariable …

[HTML][HTML] Coexistence of group I and group II chaperonins in the archaeon Methanosarcina mazei

D Klunker, B Haas, A Hirtreiter, L Figueiredo… - Journal of Biological …, 2003 - ASBMB
Two distantly related classes of cylindrical chaperonin complexes assist in the folding of
newly synthesized and stress-denatured proteins in an ATP-dependent manner. Group I …

Molecular chaperones in thermophilic eubacteria and archaea

M Sahlan, M Yohda - Thermophilic microbes in environmental and …, 2013 - Springer
Thermophilic organisms tolerate or adapt to high temperatures by making their proteins
thermostable or thermophilic. Even though, thermophilic bacteria have their own optimal …

All three chaperonin genes in the archaeon Haloferax volcanii are individually dispensable

G Kapatai, A Large, JLP Benesch… - Molecular …, 2006 - Wiley Online Library
The Hsp60 or chaperonin class of molecular chaperones is divided into two phylogenetic
groups: group I, found in bacteria, mitochondria and chloroplasts, and group II, found in …

Characterization and sequence comparison of temperature-regulated chaperonins from the hyperthermophilic archaeon Archaeoglobus fulgidus

OJ Emmerhoff, HP Klenk, NK Birkeland - Gene, 1998 - Elsevier
We have cloned and sequenced the genes encoding two chaperonin subunits (Cpn-α and
Cpn-β), from Archaeoglobus fulgidus, a sulfate-reducing hyperthermophilic archaeon. The …

Insights into chaperonin function from studies on archaeal thermosomes

P Lund - Biochemical Society Transactions, 2011 - portlandpress.com
It is now well understood that, although proteins fold spontaneously (in a thermodynamic
sense), many nevertheless require the assistance of helpers called molecular chaperones to …

Two kinds of archaeal chaperonin with different temperature dependency from a hyperthermophile

M Izumi, S Fujiwara, M Takagi, K Fukui… - … and Biophysical Research …, 2001 - Elsevier
Thermococcus kodakaraensis KOD1 produces two kinds of chaperonin subunits, CpkA and
CpkB. To monitor the expression levels of CpkA and CpkB, anti-CpkA and anti-CpkB …

Gene duplication and gene conversion shape the evolution of archaeal chaperonins

JM Archibald, AJ Roger - Journal of molecular biology, 2002 - Elsevier
Chaperonins are multi-subunit double-ring complexes that mediate the folding of nascent or
denatured proteins. Gene duplication has been a potent force in the evolution of …