Results 151 to 160 of about 709,714 (368)

SUMOylation of nuclear actin [PDF]

open access: yes, 2009
Actin, a major component of the cytoplasm, is also abundant in the nucleus. Nuclear actin is involved in a variety of nuclear processes including transcription, chromatin remodeling, and intranuclear transport.
Alessandro Arduini   +52 more
core   +4 more sources

SV40 Large Tumor Antigen Nuclear Import Is Regulated by the Double-stranded DNA-dependent Protein Kinase Site (Serine 120) Flanking the Nuclear Localization Sequence*

open access: yesJournal of Biological Chemistry, 1997
Nuclear localization sequence (NLS)-dependent nuclear import of SV40 large tumor antigen (T-Ag) fusion proteins is regulated by phosphorylation sites for casein kinase II (CKII) and the cyclin-dependent kinase Cdc2 amino-terminal to the NLS (amino acids ...
C. Xiao, S. Hübner, D. Jans
semanticscholar   +1 more source

The subcellular distribution of phosphorylated Y‐box‐binding protein‐1 at S102 in colorectal cancer patients, stratified by KRAS mutational status and clinicopathological features

open access: yesMolecular Oncology, EarlyView.
This study identifies nuclear YB‐1 S102 phosphorylation as a marker associated with KRAS and FBXW7 mutations in colorectal cancer. Mutated KRAS correlates specifically with nuclear, not cytoplasmic, S102 YB‐1. These findings provide the first ex vivo evidence of this link in CRC and suggest future studies should assess the prognostic and therapeutic ...
Konstanze Lettau   +9 more
wiley   +1 more source

Identification of charged amino acids required for nuclear localization of human L1 ORF1 protein

open access: yesMobile DNA, 2019
Background Long Interspersed Element 1 (LINE-1) is a retrotransposon that is present in 500,000 copies in the human genome. Along with Alu and SVA elements, these three retrotransposons account for more than a third of the human genome sequence.
B. T. Freeman   +4 more
doaj   +1 more source

Exploring the cellular accumulation of metal complexes [PDF]

open access: yes, 2010
Transition metal complexes offer great potential as diagnostic and therapeutic agents, and a growing number of biological applications have been explored. To be effective, these complexes must reach their intended target inside the cell.
Barton, Jacqueline K.   +2 more
core   +1 more source

A nucleotide‐independent, pan‐RAS‐targeted DARPin elicits anti‐tumor activity in a multimodal manner

open access: yesMolecular Oncology, EarlyView.
We report a Designed Ankyrin Repeat Protein that binds and inhibits RAS proteins, which serve as central cell signaling hubs and are essential for the progression of many cancers. Its unique feature is that it does not discriminate between different RAS isoforms or mutations and is capable of binding to RAS in both its active (GTP‐bound) and inactive ...
Jonas N. Kapp   +13 more
wiley   +1 more source

Nuclear localization of orphan receptor protein kinase (Ror1) is mediated through the juxtamembrane domain

open access: yesBMC Cell Biology, 2010
Background Several receptor tyrosine kinases (RTKs) such as EGFR, FGFR, TRK, and VEGFR are capable of localizing in the cell nucleus in addition to their usual plasma membrane localization. Recent reports also demonstrate that nuclear-localized RTKs have
Lyu Ping-Chiang   +2 more
doaj   +1 more source

Mad2, Bub3, and Mps1 regulate chromosome segregation and mitotic synchrony in Giardia intestinalis, a binucleate protist lacking an anaphase-promoting complex. [PDF]

open access: yes, 2014
The binucleate pathogen Giardia intestinalis is a highly divergent eukaryote with a semiopen mitosis, lacking an anaphase-promoting complex/cyclosome (APC/C) and many of the mitotic checkpoint complex (MCC) proteins.
Cande, W Zacheus, Vicente, Juan-Jesus
core   +2 more sources

Kinetic Characterization of the Human Retinoblastoma Protein Bipartite Nuclear Localization Sequence (NLS) in Vivo andin Vitro

open access: yesJournal of Biological Chemistry, 1997
The retinoblastoma (RB) tumor suppressor is a nuclear phosphoprotein important for cell growth control and able to bind specifically to viral oncoproteins such as the SV40 large tumor antigen (T-ag).
A. Efthymiadis   +3 more
semanticscholar   +1 more source

Unraveling LINE‐1 retrotransposition in head and neck squamous cell carcinoma

open access: yesMolecular Oncology, EarlyView.
The novel RetroTest method allows the detection of L1 activation in clinical samples with low DNA input, providing global L1 activity and the identification of the L1 source element. We applied RetroTest to a real‐world cohort of HNSCC patients where we reported an early L1 activation, with more than 60% of T1 patients showing L1 activity.
Jenifer Brea‐Iglesias   +12 more
wiley   +1 more source

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