Results 81 to 90 of about 110,933 (294)

Molecular Cytogenetics Investigation of the Telomeres in a Case of Philadelphia Positive B-ALL with a Single Telomere Expansion

open access: yesNeoplasia: An International Journal for Oncology Research, 1999
We have investigated a single telomere expansion in a case of acute lymphoblastic B-cell leukemia (B-ALL), where half of the cells in the bone marrow sample appeared with a Philadelphia chromosome. Comparing telomere sizes in Philadelphia-positive versus
Katerina Krejcí   +2 more
doaj   +1 more source

APE1 Activity is Controlled by Non‐G‐Quadruplex Conformations in Single‐ and Double‐Stranded G‐Quadruplex Constructs

open access: yesChemistry – A European Journal, EarlyView.
G‐quadruplex (G4) folding in DNA is inhibitory to AP endonuclease, although the protein still binds well to G4s. Curiously, partially folded G‐rich sequences, possibly transient hairpins, containing AP are very good substrates for cleavage by APE1. Herein, the enzyme activity and G4 folding are studied in single‐stranded vs. duplex contexts.
Brianna L. Trabucco   +2 more
wiley   +1 more source

Telomere Diseases [PDF]

open access: yesNew England Journal of Medicine, 2009
Rodrigo T, Calado, Neal S, Young
openaire   +2 more sources

Nuclear Entanglement: New Insights Into the Role of Cytoskeleton and Nucleoskeleton in Plant Nuclear Function

open access: yesCytoskeleton, EarlyView.
ABSTRACT Of the three types of cytoskeleton known in animals—actin, microtubules, and intermediate filaments—only actin and microtubules exist in plants. Both play important roles in cellular shaping, organelle movement, organization of the endomembrane system, and cell signaling.
Norman R. Groves   +3 more
wiley   +1 more source

Correlation between telomere shortening in maternal peripheral blood and fetal aneuploidy

open access: yesBMC Pregnancy and Childbirth
Background This study aimed to assess whether maternal telomere length is a more accurate predictor of trisomy 21 than maternal age while also exploring the factors influencing maternal and fetal telomere length.
Xiao-Xi Zhao, Le Le Bai
doaj   +1 more source

SUMOylation regulates telomere length by targeting the shelterin subunit Tpz1 Tpp1 to modulate shelterin–Stn1 interaction in fission yeast [PDF]

open access: bronze, 2014
Keisuke Miyagawa   +13 more
openalex   +1 more source

Peripheral blood leucocyte telomere length is associated with progression of interstitial lung disease in systemic sclerosis [PDF]

open access: bronze, 2021
Shuo Liu   +8 more
openalex   +1 more source

Titin Is Present in the Elastic Tethers That Connect Separating Anaphase Chromosomes in Crane‐Fly Spermatocytes

open access: yesCytoskeleton, EarlyView.
ABSTRACT Elastic tethers connect telomeres of separating chromosomes in anaphase of animal cells. Immunofluorescence staining of titin in crane‐fly spermatocytes, using 4 different antibodies, shows that the giant elastic protein titin seems to be a component of mitotic tethers: titin “strands” extend between separating chromosomes, connecting their ...
Demetra Economopoulos   +5 more
wiley   +1 more source

PharmVar GeneFocus: NAT2—Genetic Variation and Updated Nomenclature

open access: yesClinical Pharmacology &Therapeutics, EarlyView.
The Pharmacogene Variation Consortium (PharmVar) provides nomenclature for the highly polymorphic human N‐acetyltransferase 2 (NAT2) gene. NAT2 metabolizes several clinically used drugs including isoniazid, hydralazine, amifampridine, procainamide, and sulfonamides such as dapsone, and also some highly carcinogenic arylamines.
Georgia Papanikolaou   +14 more
wiley   +1 more source

Preoperative Detection of Dual TERT Promoter Mutations in Thyroid Cancer: A Case Series

open access: yesDiagnostic Cytopathology, EarlyView.
ABSTRACT Telomerase reverse transcriptase promoter (TERTp) mutations are associated with aggressive thyroid cancer and are most frequently found in anaplastic and poorly differentiated thyroid cancer. Pre‐operative thyroid nodule molecular testing can detect TERTp, denoting a high risk of malignancy and possible aggressive clinical features such as ...
Amir Harari   +7 more
wiley   +1 more source

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