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A gene-rich mitochondrion with a unique ancestral protein transport system
Moreira D, Blaz J, Kim E, Eme L.
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M13 Procoat Protein Insertion into YidC and SecYEG Proteoliposomes and Liposomes
Journal of Molecular Biology, 2011M13 procoat protein was one of the first model proteins used to study bacterial membrane protein insertion. It contains a signal peptide of 23 amino acid residues and is not membrane targeted by the signal recognition particle. The translocation of its periplasmic domain is independent of the preprotein translocase (SecAYEG) but requires ...
Natalie, Stiegler +2 more
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Light‐Induced Control of Protein Translocation by the SecYEG Complex
Angewandte Chemie, 2010Please close the pore! An organochemical photoswitch was introduced into two transmembrane segments that comprise the lateral gate of the bacterial-membrane-embedded protein-conducting pore. Reversible switching of the azobenzene between the trans and cis configurations by irradiation with visible and UV light enforced the opening and closure of the ...
Bonardi, Francesco +4 more
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The structure of the bacterial protein translocation complex SecYEG
Biochemical Society Transactions, 2005Proteins destined for secretion, membrane insertion or organellar import contain signal sequences that direct them to the membrane. Once there, transport machines receive and translocate them appropriately across or into the membrane. The related SecY and Sec61 protein translocation complexes are ubiquitous components of machines that are essential for
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Three-dimensional structure of the bacterial protein-translocation complex SecYEG
Nature, 2002Transport and membrane integration of polypeptides is carried out by specific protein complexes in the membranes of all living cells. The Sec transport path provides an essential and ubiquitous route for protein translocation. In the bacterial cytoplasmic membrane, the channel is formed by oligomers of a heterotrimeric membrane protein complex ...
Breyton, Cécile +4 more
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Atomic Model of the E.coli Membrane-bound Protein Translocation Complex SecYEG
Journal of Molecular Biology, 2005The Sec complex forms the core of a conserved machinery transporting proteins across or into membranes. In Escherichia coli SecYEG is active as an oligomer, but the structure predicts that the protein-conducting channel is formed by the monomer. A homology model of the E.coli complex was built using the atomic structure of Methanococcus jannaschii ...
Bostina, M +3 more
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Structure of the SecYEG Protein Translocation Complex
2007Protein transport through and into biological membranes is a process of fundamental importance in all living organisms. In eukaryotes, protein translocation through the endoplasmic reticulum is carried out by a membrane protein complex called Sec61, usually while associated with ribosomes. In Bacteria and Archaea, protein translocation through and into
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Regulation of the bacterial translocon SecYEG by periplasmic pH
Biophysical Journal, 2023Denis G. Knyazev +6 more
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Exploring voltage sensing in protein-translocating channel SecYEG
Biophysical Journal, 2023Nikolaus Gössweiner-Mohr +5 more
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