Results 51 to 60 of about 58,996 (261)

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

The Glide/Gcm fate determinant controls initiation of collective cell migration by regulating Frazzled

open access: yeseLife, 2016
Collective migration is a complex process that contributes to build precise tissue and organ architecture. Several molecules implicated in cell interactions also control collective migration, but their precise role and the finely tuned expression that ...
Tripti Gupta   +4 more
doaj   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

open access: yesFEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança   +2 more
wiley   +1 more source

Medical irradiation risk assessment based on the data of radiation-hygienic passportization in the regions of the Russian Federation

open access: yesРадиационная гигиена, 2016
This article is aimed at methodology development for collective risk assessment of medical irradiation, basing on results of radiation-hygienic passportization in the Russian Federation regions, i.e.
V. Ju. Golikov
doaj  

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

Analysis of individual dose monitoring results of occupational external radiation in radiation workers of non-medical institutions in Shanghai

open access: yes环境与职业医学
BackgroundWith the widespread application of ionizing radiation technology in non-medical fields, the number of non-medical radiation workers has steadily increased over the years.
Tong HUANG   +6 more
doaj   +1 more source

Do you know the radiation dose your patients receive from your CT scanner?

open access: yesSouth African Journal of Radiology, 2001
The number of computed tomography (CT) examinations and new indications for CT are increasing in frequency worldwide. While CT makes up only 4% of medical examinations, it might contribute as much as 40% of the total collective radiation dose to the ...
Chris Welman   +2 more
doaj   +1 more source

A context‐dependent modulatory role for eIF6 in acquired resistance to vemurafenib in melanoma

open access: yesFEBS Letters, EarlyView.
Acquired resistance to vemurafenib upregulates the translation factor eIF6 in melanoma cells. Silencing eIF6 in resistant cells reduces proliferation and partially restores drug sensitivity, whereas its overexpression increases sensitivity across melanoma lines regardless of BRAF status, via modulation of mTOR, S6K, and MAPK signaling.
George Kyriakopoulos   +9 more
wiley   +1 more source

The Optimization of Radiation Protection in the Design of the High Temperature Reactor-Pebble-Bed Module

open access: yesScience and Technology of Nuclear Installations, 2017
The optimization of radiation protection is an important task in both the design and operation of a nuclear power plant. Although this topic has been considerably investigated for pressurized water reactors, there are very few public reports on it for ...
Sida Sun, Hong Li, Sheng Fang
doaj   +1 more source

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