Results 81 to 90 of about 438,619 (385)

Introduction to protein folding for physicists [PDF]

open access: yes, 2007
The prediction of the three-dimensional native structure of proteins from the knowledge of their amino acid sequence, known as the protein folding problem, is one of the most important yet unsolved issues of modern science.
Abagyan R. A.   +21 more
core   +3 more sources

Unlocking the potential of tumor‐derived DNA in urine for cancer detection: methodological challenges and opportunities

open access: yesMolecular Oncology, EarlyView.
Urine is a rich source of biomarkers for cancer detection. Tumor‐derived material is released into the bloodstream and transported to the urine. Urine can easily be collected from individuals, allowing non‐invasive cancer detection. This review discusses the rationale behind urine‐based cancer detection and its potential for cancer diagnostics ...
Birgit M. M. Wever   +1 more
wiley   +1 more source

Pyrrolidine nucleotide analogs with a tunable conformation

open access: yesBeilstein Journal of Organic Chemistry, 2014
Conformational preferences of the pyrrolidine ring in nucleotide analogs 7–14 were investigated by means of NMR and molecular modeling. The effect of the relative configuration of hydroxy and nucleobase substituents as well as the effect of the ...
Lenka Poštová Slavětínská   +2 more
doaj   +1 more source

Direct comparison of nick-joining activity of the nucleic acid ligases from bacteriophage T4 [PDF]

open access: yes, 2006
The genome of bacteriophage T4 encodes three polynucleotide ligases, which seal the backbone of nucleic acids during infection of host bacteria. The T4Dnl (T4 DNA ligase) and two RNA ligases [T4Rnl1 (T4 RNA ligase 1) and T4Rnl2] join a diverse array of ...
Amitsur   +61 more
core   +4 more sources

KRAS and GNAS mutations in cell‐free DNA and in circulating epithelial cells in patients with intraductal papillary mucinous neoplasms—an observational pilot study

open access: yesMolecular Oncology, EarlyView.
This study demonstrates that KRAS and GNAS mutations are more prevalent in patients with resected intraductal papillary mucinous neoplasms (IPMN) compared to those under clinical surveillance. GNAS mutations significantly differ between the two patient cohorts, indicating that their absence may serve as a potential biomarker to support conservative ...
Christine Nitschke   +12 more
wiley   +1 more source

Human Norovirus Aptamer Exhibits High Degree of Target Conformation-Dependent Binding Similar to That of Receptors and Discriminates Particle Functionality

open access: yesmSphere, 2016
Although two in vitro cultivation methods have been reported, discrimination of infectious human norovirus particles for study of viral inactivation is still a challenge, as both rely on reverse transcriptase quantitative PCR.
Matthew D. Moore   +3 more
doaj   +1 more source

Multistrand Structure Prediction of Nucleic Acid Assemblies and Design of RNA Switches.

open access: yesNano letters (Print), 2016
RNA is an attractive material for the creation of molecular logic gates that release programmed functionalities only in the presence of specific molecular interaction partners.
Eckart Bindewald   +5 more
semanticscholar   +1 more source

Conformation Sensitive Targeting of Lipid Nanoparticles for RNA Therapeutics

open access: yesNature Nanotechnology, 2021
The successful in vivo implementation of gene expression modulation strategies relies on effective, non-immunogenic delivery vehicles. Lipid nanoparticles are one of the most advanced non-viral clinically approved nucleic-acid delivery systems. Yet lipid
Niels Dammes   +6 more
semanticscholar   +1 more source

High-resolution NMR structure of an RNA model system : the 14-mer cUUCGg tetraloop hairpin RNA [PDF]

open access: yes, 2010
We present a high-resolution nuclear magnetic resonance (NMR) solution structure of a 14-mer RNA hairpin capped by cUUCGg tetraloop. This short and very stable RNA presents an important model system for the study of RNA structure and dynamics using NMR ...
Fürtig, Boris   +4 more
core  

Dependence of aptamer activity on opposed terminal extensions : improvement of light-regulation efficiency [PDF]

open access: yes, 2009
Aptamers that can be regulated with light allow precise control of protein activity in space and time and hence of biological function in general. In a previous study, we showed that the activity of the thrombin-binding aptamer HD1 can be turned off by ...
Buff, Maximilian   +6 more
core   +2 more sources

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