Results 11 to 20 of about 876,730 (357)

DNA coiled coils [PDF]

open access: yesProceedings of the National Academy of Sciences, 2005
We report the coiled-coil structure of DNA, which is generated by the dodecanucleotide d(ATATATATATAT). The structure has been determined by single-crystal x-ray crystallography. The molecules form duplexes with single-stranded overhangs, which associate with neighbor molecules and give rise to infinite double helices in a coiled-coil conformation ...
J L, Campos   +4 more
openaire   +2 more sources

ARCIMBOLDOon coiled coils [PDF]

open access: yesActa Crystallographica Section D Structural Biology, 2018
ARCIMBOLDOsolves the phase problem by combining the location of small model fragments usingPhaserwith density modification and autotracing usingSHELXE. Mainly helical structures constitute favourable cases, which can be solved using polyalanine helical fragments as search models. Nevertheless, the solution of coiled-coil structures is often complicated
Caballero, Iracema   +5 more
openaire   +4 more sources

The coiled coil‐helix‐coiled coil‐helix proteins may be redox proteins [PDF]

open access: yesFEBS Letters, 2009
A number of nuclear encoded proteins are imported in to the intermembrane space of mitochondria where they adopt a coiled coil‐helix‐coiled coil‐helix (CHCH) fold. Two disulfide bonds formed by twin CX3C or CX9C motifs stabilize this fold. Some of these proteins are also characterized at their N‐termini by the presence of two additional cysteine ...
BANCI, LUCIA   +3 more
openaire   +3 more sources

Low-Frequency Magnetic Field Exposure System for Cells Electromagnetic Biocompatibility Studies

open access: yesApplied Sciences, 2022
The advancement in science and technology has resulted in the invention and widespread usage of many electrical devices in the daily lives of humans. The exponential use of modern electronic facilities has increased electromagnetic field exposure in the ...
Zuzana Judakova   +3 more
doaj   +1 more source

Quantitative analysis and detection of chaptalization and watering down of wine using isotope ratio mass spectrometry

open access: yesBIO Web of Conferences, 2019
In early 1990's European Union has established new isotopic approach for detection of wine authenticity. In this article we setup the possibility of using new approach using new EIM – Module – IRMS (Ethanol Isotope Measurement – Module – Isotope Ratio ...
Smajlovic I.   +10 more
doaj   +1 more source

A seven-helix coiled coil [PDF]

open access: yesProceedings of the National Academy of Sciences, 2006
Coiled-coil proteins contain a characteristic seven-residue sequence repeat whose positions are designated a to g. The interacting surface between α-helices in a classical coiled coil is formed by interspersing nonpolar side chains at the a and d positions with hydrophilic residues at the flanking e and g positions.
Jie, Liu   +5 more
openaire   +2 more sources

Evolutionary Patterns in Coiled-Coils [PDF]

open access: yesGenome Biology and Evolution, 2015
Models of protein evolution are used to describe evolutionary processes, for phylogenetic analyses and homology detection. Widely used general models of protein evolution are biased toward globular domains and lack resolution to describe evolutionary processes for other protein types.
Surkont, J., Pereira-Leal, J. B.
openaire   +3 more sources

α/β coiled coils

open access: yeseLife, 2016
Coiled coils are the best-understood protein fold, as their backbone structure can uniquely be described by parametric equations. This level of understanding has allowed their manipulation in unprecedented detail. They do not seem a likely source of surprises, yet we describe here the unexpected formation of a new type of fiber by the simple insertion ...
Marcus D Hartmann   +6 more
openaire   +4 more sources

Effect of Microstructures on Yield Strength in Hot-Stamped Steel Sheet

open access: yesMATEC Web of Conferences, 2015
For automotive structural parts, hot stamping is being increasingly used because of the need for both higher fuel efficiency and crashworthiness. The yield strength of hot-stamped steel sheet is lower than that of water-quenched steel sheet.
Tabata Shin-ichiro   +3 more
doaj   +1 more source

Clustering Measurements of broad-line AGNs: Review and Future [PDF]

open access: yes, 2013
Despite substantial effort, the precise physical processes that lead to the growth of super-massive black holes in the centers of galaxies are still not well understood.
Coil, Alison L.   +2 more
core   +4 more sources

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