Results 91 to 100 of about 4,040,462 (349)

DNA Sequences as a Medium for Steganography Method of Codon Frequency with Character Frequency [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2012
The present study included an application of new method of steganography using DNA sequence as a medium for hiding. This method is considered as a secret cover for the secret message (text, image), avoid attention of unauthorized person in addition to be
Sadoon Abdullah, Ahmed Nori
doaj   +1 more source

Polytene chromosomes as indicators of phylogeny in several species groups of Drosophila. [PDF]

open access: yes, 2001
BackgroundPolytene chromosome banding patterns have long been used by Drosophila evolutionists to infer degree of relatedness among taxa. Recently, nucleotide sequences have preempted this traditional method.
Baker, RH   +4 more
core  

Determination of plasmid copy number in yeast transformants by means of agarose plugs [PDF]

open access: yes, 1993
The determination of plasmid copy number in Saccharomyces cerevisiaetransformants containing circular or linear plasmids is currently performed with total yeast DNA extracts obtained from cultures grown under selection.
AM Guerrini   +3 more
core   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Structure of 5S rDNA sequence of the gibel carp (Carassius gibelio) with 2n=100 chromosomes

open access: yesFrontiers in Marine Science, 2015
In vertebrate, the 5S ribosomal DNA (rDNA) consists of a conserved coding (transcriptional) unit of 120 bp (5S), which is separated from the next unit by a nontranscribed spacer (NTS). The coding sequence and the NTS together form a repeat unit which can
Lech Kirtiklis
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Structural snapshots of Xer recombination reveal activation by synaptic complex remodeling and DNA bending [PDF]

open access: yes, 2016
Bacterial Xer site-specific recombinases play an essential genome maintenance role by unlinking chromosome multimers, but their mechanism of action has remained structurally uncharacterized. Here, we present two high-resolution structures of Helicobacter
Adams   +71 more
core   +4 more sources

Comparative DNA sequence analysis of mouse and human protocadherin gene clusters.

open access: yesGenome Research, 2001
The genomic organization of the human protocadherin alpha, beta, and gamma gene clusters (designated Pcdh alpha [gene symbol PCDHA], Pcdh beta [PCDHB], and Pcdh gamma [PCDHG]) is remarkably similar to that of immunoglobulin and T-cell receptor genes. The
Qiang Wu   +10 more
semanticscholar   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

On the discrete Peyrard-Bishop model of DNA: stationary solutions and stability [PDF]

open access: yes, 2005
As a first step in the search of an analytical study of mechanical denaturation of DNA in terms of the sequence, we study stable, stationary solutions in the discrete, finite and homogeneous Peyrard-Bishop DNA model.
Angel Sánchez   +3 more
core   +4 more sources

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