Results 131 to 140 of about 3,879 (192)

SecA mediates cotranslational targeting and translocation of an inner membrane protein [PDF]

open access: yes, 2017
Protein targeting to the bacterial plasma membrane was generally thought to occur via two major pathways: cotranslational targeting by signal recognition particle (SRP) and posttranslational targeting by SecA and SecB.
Shan, Shu-ou, Wang, Shuai, Yang, Chien-I
core   +1 more source

Shapes of pored membranes

open access: yes, 2012
We study the shapes of pored membranes within the framework of the Helfrich theory under the constraints of fixed area and pore size. We show that the mean curvature term leads to a budding- like structure, while the Gaussian curvature term tends to ...
de la Cruz, Monica Olvera   +3 more
core   +1 more source

Disulfide bridge formation between SecY and a translocating polypeptide localizes the translocation pore to the center of SecY [PDF]

open access: yes, 2005
During their biosynthesis, many proteins pass through the membrane via a hydrophilic channel formed by the heterotrimeric Sec61/SecY complex. Whether this channel forms at the interface of multiple copies of Sec61/SecY or is intrinsic to a monomeric ...
Cannon, Kurt S.   +4 more
core  

The SecM arrest peptide traps a pre-peptide bond formation state of the ribosome

open access: yesNature Communications
Nascent polypeptide chains can induce translational stalling to regulate gene expression. This is exemplified by the E. coli secretion monitor (SecM) arrest peptide that induces translational stalling to regulate expression of the downstream encoded SecA,
Felix Gersteuer   +8 more
doaj   +1 more source

An Investigation of the Function of the Periplasmic Domain of BamA, an Essential Protein in Gram-Negative Bacteria [PDF]

open access: yes, 2013
Gram-negative bacteria make up the majority of dangerous health-care associated infections (HAIs), and are becoming increasingly resistant to standard antibiotics.
Castagneri, Danielle Andrea
core   +2 more sources

How SecB maintains clients in a translocation competent state

open access: yesCommunications Biology
Bacterial secretory proteins must remain soluble and non-folded until they reach the SecYEG translocase. Preprotein intrinsic features and chaperones can delay protein folding.
Guillaume Roussel   +4 more
doaj   +1 more source

Dynamic Structure of the Translocon SecYEG in Membrane [PDF]

open access: yesJournal of Biological Chemistry, 2013
Raghavendar Reddy Sanganna Gari   +4 more
openaire   +1 more source

YidC from <i>Escherichia coli</i> Forms an Ion-Conducting Pore upon Activation by Ribosomes. [PDF]

open access: yesBiomolecules, 2023
Knyazev DG   +9 more
europepmc   +1 more source

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