Results 41 to 50 of about 20,043 (225)

Specific loop modifications of the thrombin-binding aptamer trigger the formation of parallel structures [PDF]

open access: yes, 2014
Guanine-rich sequences show large structural variability, with folds ranging from duplex to triplex and quadruplex helices. Quadruplexes are polymorphic, and can show multiple stoichiometries, parallel and antiparallel strand alignments, and different ...
Aviñó, Anna   +7 more
core   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

open access: yesAdvanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi   +4 more
wiley   +1 more source

Methylation assay by nucleotide incorporation: a quantitative assay for regional CpG methylation density

open access: yesBioTechniques, 2004
Although the aberrant methylation in CpG islands is of great interest as a causative role in human malignancies, it has been very difficult to accurately determine methylation density.
Takeshi Yamamoto   +6 more
doaj   +1 more source

Encapsulation of a polymer by an icosahedral virus

open access: yes, 2010
The coat proteins of many viruses spontaneously form icosahedral capsids around nucleic acids or other polymers. Elucidating the role of the packaged polymer in capsid formation could promote biomedical efforts to block viral replication and enable use ...
Elrad, Oren M., Hagan, Michael F.
core   +1 more source

New insights into the biological role of mammalian ADARs; the RNA editing proteins [PDF]

open access: yes, 2015
The ADAR proteins deaminate adenosine to inosine in double-stranded RNA which is one of the most abundant modifications present in mammalian RNA.
Arieti, Fabiana   +4 more
core   +2 more sources

Rational Design of Optical Single‐Walled Carbon Nanotube‐Based Nanosensors with Biological Recognition Elements

open access: yesAdvanced Sensor Research, EarlyView.
This Review focuses on assessing and providing perspective on the field of rationally‐designed optical sensors constructed with single‐walled carbon nanotubes. The literature is reviewed and evaluated for SWCNT‐based sensors constructed with biomolecular recognition elements, including proteins, peptides, and oligonucleotides, as well as their methods ...
Amelia K. Ryan   +4 more
wiley   +1 more source

Novel mutations in the toll like receptor genes cause hyporesponsiveness to Mycobacterium avium subsp. paratuberculosis infection [PDF]

open access: yes, 2008
Toll like receptors play a central role in the recognition of pathogen associated molecular patterns (PAMPs). Mutations in TLR1, TLR2 and TLR4 genes may change the PAMP reorganization ability which causes altered responsiveness to the bacterial pathogens.
Ivan Mikula Jr.   +6 more
core   +1 more source

Helices 2 and 3 are the initiation sites in the PrPc -> PrPsc transition

open access: yes, 2012
It is established that prion protein is the sole causative agent in a number of diseases in humans and animals. However, the nature of conformational changes that the normal cellular form PrPC undergoes in the conversion process to a self-replicating ...
Chen, Jie, Thirumalai, Devarajan
core   +1 more source

Activation-induced deoxycytidine deaminase (AID) co-transcriptional scanning at single-molecule resolution [PDF]

open access: yes, 2015
Activation-induced deoxycytidine deaminase (AID) generates antibody diversity in B cells by initiating somatic hypermutation (SHM) and class-switch recombination (CSR) during transcription of immunoglobulin variable (IgV) and switch region (IgS) DNA ...
Bertram, JG   +7 more
core   +1 more source

Allosteric Modulation of Pathological Ataxin‐3 Aggregation: A Path to Spinocerebellar Ataxia Type‐3 Therapies

open access: yesAdvanced Science, EarlyView.
This study uncovers a new allosteric site in the Josephin domain of ataxin‐3 targeted by the molecular tweezer CLR01, which modulates protein aggregation, improves synaptic function in neuronal cells, and delays motor dysfunction in animal models.
Alexandra Silva   +28 more
wiley   +1 more source

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