Results 81 to 90 of about 4,630,594 (315)

Dynamic insertion of membrane proteins at the endoplasmic reticulum [PDF]

open access: yes, 2005
Most eukaryotic membrane proteins are cotranslationally integrated into the endoplasmic reticulum membrane by the Sec61 translocation complex. They are targeted to the translocon by hydrophobic signal sequences which induce the translocation of either ...
Higy, Marie
core   +1 more source

‘Guide and Prejudice’— How Argonautes recognize targets across domains of life

open access: yesFEBS Letters, EarlyView.
Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley   +1 more source

Helicobacter pylori type IV secretion apparatus exploits beta1 integrin in a novel RGD-independent manner. [PDF]

open access: yes, 2009
Translocation of the Helicobacter pylori (Hp) cytotoxin-associated gene A (CagA) effector protein via the cag-Type IV Secretion System (T4SS) into host cells is a major risk factor for severe gastric diseases, including gastric cancer.
Haas, Rainer   +42 more
core   +2 more sources

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

ASSESMENT OF ZINC CONTAMINATION IN THE SEDIMENT AND MANGROVE (AVICENNIA MARINA) AT WONOREJO MANGROVE, SURABAYA OF INDONESIA

open access: yesRussian Journal of Agricultural and Socio-Economic Sciences, 2021
The existence of number industries in Surabaya as the largest industrial cities in Indonesia have affects how much waste they produce and is wasted in the waters. Heavy metal Zn (zinc) is one of the ingredients in the waste.
Baihaqi V.K., Yanuhar U.
doaj   +1 more source

The twin arginine translocation pathway in Escherichia coli : mechanism and quality control [PDF]

open access: yes
The bacterial twin-arginine translocation (Tat) pathway has the unique ability to export pre-folded proteins across the cytoplasmic membrane. Its name came from the almost invariant twin-arginine motif in the signal peptide of Tat substrates ...
Ren, Chao, Ph.D.
core  

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Subcellular Cd accumulation characteristic in root cell wall of rice cultivars with different sensitivities to Cd stress in soil

open access: yesJournal of Integrative Agriculture, 2016
The variations of grain cadmiun (Cd) concentrations, translocation factors (TFs) of Cd from roots to shoots/grains of six rice cultivars, characterized with different Cd-sensitivities in polluted soil were studied, the selected rice cultivars were ...
Bin LIU   +7 more
doaj   +1 more source

Assembly and mechanism of bacterial twin-arginine translocation systems [PDF]

open access: yes
The bacterial twin-arginine translocation (Tat) pathway is able to export pre-folded cofactor containing proteins across the cytoplasmic membrane. Tat substrates bear cleavable N-terminal signal peptides that are characterized by the presence of a ...
Baglieri, J.
core  

Deletions of the derivative chromosome 9 occur at the time of the Philadelphia translocation and provide a powerful and independent prognostic indicator in chronic myeloid leukemia [PDF]

open access: yes, 2001
Chronic myeloid leukemia (CML) is characterized by formation of the BCR-ABL fusion gene, usually as a consequence of the Philadelphia (Ph) translocation between chromosomes 9 and 22.
Reid, AG   +11 more
core  

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