Results 111 to 120 of about 1,245,198 (329)

Hyperchromicity and Strand Separation in Bacterial DNA

Biophysical Journal, 1962
Studies of the per cent of strand separation of N(14)-N(15) hybrid coli DNA heated to various temperatures in formaldehyde have shown that the process of strand separation is a function of temperature and formaldehyde concentration and is directly related to the measured hyperchromicity.
Peter F. Davison, David Freifelder
openaire   +3 more sources

Combined bacterial and fungal targeted amplicon sequencing of respiratory samples: Does the DNA extraction method matter?

PLoS ONE, 2020
BACKGROUND:High-throughput sequencing techniques are used to analyse the diversity of the respiratory microbiota in health and disease. Although extensive data are available regarding bacterial respiratory microbiota, its fungal component remains poorly ...
Cécile Angebault, Mathilde Payen, Paul-Louis Woerther, Christophe Rodriguez, Françoise Botterel   +4 more
doaj   +1 more source

Gram-negative bacterial molecules associate with Alzheimer disease pathology. [PDF]

, 2016
ObjectiveWe determined whether Gram-negative bacterial molecules are associated with Alzheimer disease (AD) neuropathology given that previous studies demonstrate Gram-negative Escherichia coli bacteria can form extracellular amyloid and Gram-negative ...
DeCarli, Charles, Jin, Lee-Way, Phinney, Brett, Sharp, Frank R, Stamova, Boryana, Zhan, Xinhua   +5 more
core   +1 more source

Analysis of the regulation of undecaprenyl diphosphate dephosphorylation in Escherichia coli

FEBS Open Bio, EarlyView.
BacA, PgpB, and YbjG phosphatases are involved in undecaprenyl phosphate (C55P) synthesis in Escherichia coli. We analyzed the lipid contents and the gene expression in the gene‐disruption strains. Undecaprenyl diphosphate (C55PP) level increased in the bacA, ybjG double‐disruption strain, but C55P levels were similar in all strains.
Tomotaka Jitsukawa, Yasushi Shigeri, Shingo Fujisaki   +2 more
wiley   +1 more source

Translocation of DNA across bacterial membranes [PDF]

Microbiological Reviews, 1994
DNA translocation across bacterial membranes occurs during the biological processes of infection by bacteriophages, conjugative DNA transfer of plasmids, T-DNA transfer, and genetic transformation. The mechanism of DNA translocation in these systems is not fully understood, but during the last few years extensive data about genes and gene products ...
openaire   +4 more sources

In situ electrochemical investigation of the interaction between bacteria Xylella fastidiosa DNA and copper(II) using DNA-electrochemical biosensors

Electrochemistry Communications, 2021
New emerging bacterial plant diseases are spreading fast in different geographical regions, and effective safety measures have not been found. Xylella fastidiosa (Xf) is a Gram-negative bacterial plant pathogen classified as a priority quarantine pest ...
W.B.S. Machini, A.M. Oliveira-Brett
doaj  

Oral bacterial DNA findings in pericardial fluid

Journal of Oral Microbiology, 2014
Background: We recently reported that large amounts of oral bacterial DNA can be found in thrombus aspirates of myocardial infarction patients. Some case reports describe bacterial findings in pericardial fluid, mostly done with conventional culturing ...
Anne-Mari Louhelainen, Joonas Aho, Sari Tuomisto, Janne Aittoniemi, Risto Vuento, Pekka J. Karhunen, Tanja Pessi   +6 more
doaj   +1 more source

Blood Metagenome in Health and Psoriasis

Frontiers in Medicine, 2020
A survey and analytical assessment of the results of fundamental works on studying blood metagenome (set of all non-human DNA) is carried out. All works on determining bacterial DNA concentration in the whole blood of healthy people are reviewed ...
Nikolay Korotky, Mikhail Peslyak, Mikhail Peslyak   +2 more
doaj   +1 more source

Effects of physiological self-crowding of DNA on shape and biological properties of DNA molecules with various levels of supercoiling. [PDF]

, 2015
DNA in bacterial chromosomes and bacterial plasmids is supercoiled. DNA supercoiling is essential for DNA replication and gene regulation. However, the density of supercoiling in vivo is circa twice smaller than in deproteinized DNA molecules isolated ...
Benedetti, F., Burnier, Y., Dietler, G., Dorier, J., Japaridze, A., Kwapich, R., Racko, D., Stasiak, A.   +7 more
core   +2 more sources

Functional parameters of spermatozoa obtained by a new selection device

FEBS Open Bio, EarlyView.
This study compares density gradient centrifugation and the LensHooke CA0™ device for sperm separation. DGC requires multiple steps, specialized equipment, and technical expertise. In contrast, the CA0 device offers key practical and methodological advantages, resulting in a faster, simpler, and more affordable sperm selection method.
Julio C. Chávez, Paulina Torres, Gabriela Carrasquel‐Martínez, María G. Figueroa‐Méndez, Diana Flores, Lina Villar, Israel Maldonado, Marcela B. Trevino, Claudia Treviño   +8 more
wiley   +1 more source