Results 31 to 40 of about 1,516,213 (305)

The haloarchaeal MCM proteins: bioinformatic analysis and targeted mutagenesis of the β7-β8 and β9-β10 hairpin loops and conserved zinc binding domain cysteines

open access: yesFrontiers in Microbiology, 2014
The hexameric MCM complex is the catalytic core of the replicative helicase in eukaryotic and archaeal cells. Here we describe the first in vivo analysis of archaeal MCM protein structure and function relationships using the genetically tractable ...
Tatjana P Kristensen   +4 more
doaj   +1 more source

Structural insights into Legionella RidL-Vps29 retromer subunit interaction reveal displacement of the regulator TBC1D5 [PDF]

open access: yes, 2017
Legionella pneumophila can cause Legionnaires’ disease and replicates intracellularly in a distinct Legionella-containing vacuole (LCV). LCV formation is a complex process that involves a plethora of type IV-secreted effector proteins.
Bärlocher, K   +8 more
core   +4 more sources

Nano-assembly of amyloid β peptide: role of the hairpin fold

open access: yesScientific Reports, 2017
Structural investigations have revealed that β hairpin structures are common features in amyloid fibrils, suggesting that these motifs play an important role in amyloid assembly. To test this hypothesis, we characterized the effect of the hairpin fold on
Sibaprasad Maity   +2 more
doaj   +1 more source

Structural and Biochemical Insights into the Peptidoglycan Hydrolase Domain of FlgJ from Salmonella typhimurium. [PDF]

open access: yesPLoS ONE, 2016
FlgJ is a glycoside hydrolase (GH) enzyme belonging to the Carbohydrate Active enZyme (CAZy) family GH73. It facilitates passage of the bacterial flagellum through the peptidoglycan (PG) layer by cleaving the β-1,4 glycosidic bond between N ...
Patryk Zaloba   +3 more
doaj   +1 more source

The Effects of Charged Amino Acid Side-Chain Length on Diagonal Cross-Strand Interactions between Carboxylate- and Ammonium-Containing Residues in a β-Hairpin

open access: yesMolecules, 2022
The β-sheet is one of the common protein secondary structures, and the aberrant aggregation of β-sheets is implicated in various neurodegenerative diseases. Cross-strand interactions are an important determinant of β-sheet stability.
Jing-Yuan Chang   +8 more
doaj   +1 more source

Properties of low-dimensional collective variables in the molecular dynamics of biopolymers [PDF]

open access: yes, 2016
The description of the dynamics of a complex, high-dimensional system in terms of a low-dimensional set of collective variables Y can be fruitful if the low dimensional representation satisfies a Langevin equation with drift and diffusion coefficients ...
Camilloni, C., Meloni, R., Tiana, G.
core   +2 more sources

The 5' spreading of small RNAs in Dictyostelium discoideum depends on the RNA-dependent RNA polymerase RrpC and on the dicer-related nuclease DrnB. [PDF]

open access: yesPLoS ONE, 2013
RNA interference (RNAi) is a gene-regulatory mechanism in eukarya that is based on the presence of double stranded RNA and that can act on both, the transcription or post-transcriptional level.
Stephan Wiegand, Christian Hammann
doaj   +1 more source

HCV IRES manipulates the ribosome to promote the switch from translation initiation to elongation. [PDF]

open access: yes, 2013
The internal ribosome entry site (IRES) of the hepatitis C virus (HCV) drives noncanonical initiation of protein synthesis necessary for viral replication.
A Ben-Shem   +68 more
core   +1 more source

Crystal Structure of Human Herpesvirus 6B Tegument Protein U14. [PDF]

open access: yesPLoS Pathogens, 2016
The tegument protein U14 of human herpesvirus 6B (HHV-6B) constitutes the viral virion structure and is essential for viral growth. To define the characteristics and functions of U14, we determined the crystal structure of the N-terminal domain of HHV-6B
Bochao Wang   +8 more
doaj   +1 more source

Evolutionary pathways of repeat protein topology in bacterial outer membrane proteins

open access: yeseLife, 2018
Outer membrane proteins (OMPs) are the proteins in the surface of Gram-negative bacteria. These proteins have diverse functions but a single topology: the β-barrel.
Meghan Whitney Franklin   +5 more
doaj   +1 more source

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