Results 31 to 40 of about 7,351,528 (349)

Reduced mutation rate and increased transformability of transposon-free Acinetobacter baylyi ADP1-ISx [PDF]

open access: yes, 2017
The genomes of most bacteria contain mobile DNA elements that can contribute to undesirable genetic instability in engineered cells. In particular, transposable insertion sequence (IS) elements can rapidly inactivate genes that are important for a ...
Barrick, Jeffrey E   +3 more
core   +2 more sources

Effects of local mutations in quadratic iterations [PDF]

open access: yes, 2020
We introduce mutations in replication systems, in which the intact copying mechanism is performed by discrete iterations of a complex quadratic map. More specifically, we consider a "correct" function acting on the complex plane (representing the space ...
Longbotham, Abraham, Radulescu, Anca R
core   +2 more sources

An Activating Mutation in sos-1 Identifies Its Dbl Domain as a Critical Inhibitor of the Epidermal Growth Factor Receptor Pathway during Caenorhabditis elegans Vulval Development [PDF]

open access: yes, 2007
Proper regulation of receptor tyrosine kinase (RTK)-Ras-mitogen-activated protein kinase (MAPK) signaling pathways is critical for normal development and the prevention of cancer.
Elgort, Marc G.   +7 more
core   +2 more sources

A Spontaneous H2-Aa Point Mutation Impairs MHC II Synthesis and CD4+ T-Cell Development in Mice

open access: yesFrontiers in Immunology, 2022
Major histocompatibility complex class II (MHC II) is an essential immune regulatory molecule that plays an important role in antigen presentation and T-cell development.
Yun Zhao   +17 more
doaj   +1 more source

DNA polymerase α (swi7) and the flap endonuclease fen1 (rad2) act together in the s-phase alkylation damage response in S. pombe [PDF]

open access: yes, 2012
Polymerase α is an essential enzyme mainly mediating Okazaki fragment synthesis during lagging strand replication. A specific point mutation in Schizosaccharomyces pombe polymerase α named swi7-1, abolishes imprinting required for mating-type switching ...
Jacob Z. Dalgaard   +5 more
core   +2 more sources

Mutation status of p53 gene in oral squamous cell carcinoma [PDF]

open access: yesStomatološki glasnik Srbije, 2009
Introduction. p53 gene is the most common tumor suppressor gene involved in pathogenesis oral squamous cell carcinoma (OSCC). Protein product of p53 gene contributes to cell cycle control and apoptosis.
Popović Branka   +3 more
doaj   +1 more source

Genetic Correlations in Mutation Processes

open access: yes, 1998
We study the role of phylogenetic trees on correlations in mutation processes. Generally, correlations decay exponentially with the generation number. We find that two distinct regimes of behavior exist.
A. S. Lapedes   +11 more
core   +1 more source

Studies of FLT3 mutations in paired presentation and relapse samples from patients with acute myeloid leukemia: implications for the role of FLT3 mutations in leukemogenesis, minimal residual disease detection, and possible therapy with FLT3 inhibitors [PDF]

open access: yes, 2002
FLT3 mutations, either internal tandem duplications (ITDs) or aspartate residue 835 (D835) point mutations, are present in approximately one third of patients with acute myeloid leukemia (AML) and have been associated with an increased relapse rate.
Bowen, D.T.   +5 more
core   +1 more source

Calmodulin variants associated with congenital arrhythmia impair selectivity for ryanodine receptors

open access: yesFrontiers in Molecular Biosciences, 2023
Among its many molecular targets, the ubiquitous calcium sensor protein calmodulin (CaM) recognizes and regulates the activity of ryanodine receptors type 1 (RyR1) and 2 (RyR2), mainly expressed in skeletal and cardiac muscle, respectively.
Giuditta Dal Cortivo   +3 more
doaj   +1 more source

L925I mutation in the Para-type sodium channel is associated with pyrethroid resistance in Triatoma infestans from the Gran Chaco region [PDF]

open access: yes, 2014
Background: Chagas' disease is an important public health concern in Latin America. Despite intensive vector control efforts using pyrethroid insecticides, the elimination of Triatoma infestans has failed in the Gran Chaco, an ecoregion that extends over
Capriotti, Natalia   +3 more
core   +3 more sources

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