Results 61 to 70 of about 150,931 (301)

Dataset of the AAC2 conformations in the c-, intermediate- and m-states obtained from free-energy simulations

Data in Brief, 2016
The data reported herein are related to the article entitled: “The switching mechanism of the mitochondrial ADP/ATP carrier explored by free-energy landscapes” (Pietropaolo et al., 2016) [1].We report the coordinates of the ADP/ATP carrier (AAC2) in the ...
Adriana Pietropaolo, Ciro Leonardo Pierri, Ferdinando Palmieri, Martin Klingenberg   +3 more
doaj   +1 more source

O efeito trófico dos derivados da guanina em culturas de astrócitos e neurônios cerebelares [PDF]

, 2006
Dissertação (mestrado) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Programa de Pós-Graduação em Neurociências.Neste estudo foi avaliado o efeito de GMP ou Guanosina em três diferentes situações: o efeito trófico sobre ...
Decker, Helena
core  

Regulation of adenylyl cyclase from Blastocladiella emersonii by guanine nucleotides [PDF]

, 1993
GTPγS stimulates adenylyl cyclase in particulate fractions of Blastocladiella emersonii zoospores. Cholera toxin catalyses the ADP-ribosylation of a membrane protein of a molecular weight (46,000) similar to that of the α subunit of Gs found in ...
Terenzi, Hernán, Hernán Terenzi, da Costa Maia, José Carlos, José Carlos da Costa Maia   +3 more
core   +1 more source

Purine Nucleotide Availability Regulates mTORC1 Activity through the Rheb GTPase

Cell Reports, 2017
Pharmacologic agents that interfere with nucleotide metabolism constitute an important class of anticancer agents. Recent studies have demonstrated that mTOR complex 1 (mTORC1) inhibitors suppress de novo biosynthesis of pyrimidine and purine nucleotides.
Natasha Emmanuel, Shoba Ragunathan, Qin Shan, Fang Wang, Andreas Giannakou, Nanni Huser, Guixian Jin, Jeremy Myers, Robert T. Abraham, Keziban Unsal-Kacmaz   +9 more
doaj   +1 more source

Hydrophilic interaction liquid chromatography coupled to quadrupole-time-of-flight mass spectrometry for determination of nuclear and cytoplasmatic contents of nucleotides, nucleosides and their nucleobases in food yeasts

Talanta Open, 2021
Hydrophilic interaction liquid chromatography using a zwitterionic phase, coupled with high-resolution mass spectrometry based on quadrupole and time-of-flight mass analyser (HILIC-Q-TOF-MS) is applied for the determination of four nucleobases (adenine ...
Marta Pastor-Belda, Inmaculada Fernández-Caballero, Natalia Campillo, Natalia Arroyo-Manzanares, Manuel Hernández-Córdoba, Pilar Viñas   +5 more
doaj   +1 more source

Estudo dos mecanismos da neuroproteção promovida pela guanosina em fatias de hipocampo de ratos submetidas à privação de glicose e oxigênio [PDF]

, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Programa de Pós-Graduação em Neurociências.Os derivados da guanina têm sido implicados em vários efeitos extracelulares, como a modulação do sistema ...
Dal-Cim, Tharine Aparecida
core  

Guanine Nucleotides Modulate Cell Surface cAMP-Binding Sites in Membranes from Dictyostelium discoideum [PDF]

, 1984
D. discoideum contains kinetically distinguishable cell surface cAMP binding sites. One class, S, is slowly dissociating and has high affinity for cAMP (Kd = 15 nM, t½ = 15 s).
Haastert, Peter J.M. van,, Haastert, Peter J.M. van   +1 more
core   +2 more sources

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

A metazoan/plant-like capping enzyme and cap modified nucleotides in the unicellular eukaryote Trichomonas vaginalis. [PDF]

PLoS Pathogens, 2010
The cap structure of eukaryotic messenger RNAs is initially elaborated through three enzymatic reactions: hydrolysis of the 5'-triphosphate, transfer of guanosine through a 5'-5' triphosphate linkage and N7-methylation of the guanine cap.
Augusto Simoes-Barbosa, Robert P Hirt, Patricia J Johnson   +2 more
doaj   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source