Results 51 to 60 of about 4,210,615 (294)

Proteomic analysis of the response to cell cycle arrests in human myeloid leukemia cells

open access: yeseLife, 2015
Previously, we analyzed protein abundance changes across a ‘minimally perturbed’ cell cycle by using centrifugal elutriation to differentially enrich distinct cell cycle phases in human NB4 cells (Ly et al., 2014).
Tony Ly, Aki Endo, Angus I Lamond
doaj   +1 more source

Percolation on the gene regulatory network [PDF]

open access: yesarXiv, 2020
We consider a simplified model for gene regulation, where gene expression is regulated by transcription factors (TFs), which are single proteins or protein complexes. Proteins are in turn synthesised from expressed genes, creating a feedback loop of regulation. This leads to a directed bipartite network in which a link from a gene to a TF exists if the
arxiv  

Stochastic equations for a self-regulating gene [PDF]

open access: yesInt. J. Biomath. (2016), 2014
Expression of cellular genes is regulated by binding of transcription factors to their promoter, either activating or inhibiting transcription of a gene. Particularly interesting is the case when the expressed protein regulates its own transcription. In this paper the features of this self-regulating process are investigated.
arxiv   +1 more source

Characteristics of the Kelch domain containing (KLHDC) subfamily and relationships with diseases

open access: yesFEBS Letters, EarlyView.
The Kelch protein superfamily includes 63 members, with the KLHDC subfamily having 10 proteins. While their functions are not fully understood, recent advances in KLHDC2's structure and role in protein degradation have highlighted its potential for drug development, especially in PROTAC therapies.
Courtney Pilcher   +6 more
wiley   +1 more source

Molecular Basis of the Function of Transcriptional Enhancers

open access: yesCells, 2020
Transcriptional enhancers are major genomic elements that control gene activity in eukaryotes. Recent studies provided deeper insight into the temporal and spatial organization of transcription in the nucleus, the role of non-coding RNAs in the process ...
Airat N. Ibragimov   +2 more
doaj   +1 more source

Insertion of the FeB cofactor in cNORs lacking metal inserting chaperones

open access: yesFEBS Letters, EarlyView.
Nitric oxide reductase is an enzyme found in the bacterial denitrification pathway. The NOR active site contains a non‐heme iron, often, but not always inserted with the assistance of chaperones. Here, we study the insertion of FeB in the subfamily of cNORs lacking chaperones and found a putative channel, conserved in the family, perhaps enabling the ...
Sofia Appelgren, Pia Ädelroth
wiley   +1 more source

TNF-alpha inhibition ameliorates HDV-induced liver damage in a mouse model of acute severe infection

open access: yesJHEP Reports, 2020
Background & Aims: HDV infection induces the most severe form of human viral hepatitis. However, the specific reasons for the severity of the disease remain unknown.
Carla Usai   +9 more
doaj  

Evolution of Regulated Transcription

open access: yesCells, 2020
The genomes of all organisms abound with various cis-regulatory elements, which control gene activity. Transcriptional enhancers are a key group of such elements in eukaryotes and are DNA regions that form physical contacts with gene promoters and ...
Oleg V. Bylino   +2 more
doaj   +1 more source

Spatial clustering and common regulatory elements correlate with coordinated gene expression [PDF]

open access: yes, 2019
Many cellular responses to surrounding cues require temporally concerted transcriptional regulation of multiple genes. In prokaryotic cells, a single-input-module motif with one transcription factor regulating multiple target genes can generate coordinated gene expression.
arxiv   +1 more source

Structural and mechanistic basis for the regulation of the chloroplast signal recognition particle by (p)ppGpp

open access: yesFEBS Letters, EarlyView.
LHCPs are transported to the thylakoid membrane via the (cp)SRP pathway. This process involves a transit complex of (cp)SRP43, (cp)SRP54 and LHCP, which interacts with (cp)FtsY and Alb3 at the membrane. GTP hydrolysis by (cp)SRP54 and (cp)FtsY triggers complex dissociation.
Victor Zegarra   +7 more
wiley   +1 more source

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