Results 11 to 20 of about 869,222 (191)

Electron Attachment to DNA: The Protective Role of Amino Acids [PDF]

open access: yes, 2022
We have studied the effect of amino acids on electron attachment properties of DNA nucleobases, taking cytosine as a model system. The equation of motion coupled cluster theory with an extended basis set has been used to simulate the electron-attached state of the DNA model system. Four selected amino acids, Arginine, Alanine, Lysine, and Glycine which
arxiv   +1 more source

Thermal neutron cross sections of amino acids from average contributions of functional groups [PDF]

open access: yes, 2021
The experimental thermal neutron cross sections of the twenty proteinogenic amino acids have been measured over the incident-neutron energy range spanning from 1 meV to 10 keV and data have been interpreted using the multi-phonon expansion based on first-principles calculations.
arxiv   +1 more source

Promises and Challenges in Continuous Tracking Utilizing Amino Acids in Skin Secretions for Active Multi-Factor Biometric Authentication for Cybersecurity [PDF]

open access: yesChemPhysChem 18 (13), 1714-1720 (2017), 2017
We consider a new concept of biometric-based cybersecurity systems for active authentication by continuous tracking, which utilizes biochemical processing of metabolites present in skin secretions. Skin secretions contain a large number of metabolites and small molecules that can be targeted for analysis.
arxiv   +1 more source

Protein sorting to mitochondria [PDF]

open access: yes, 1990
According to the endosymbiont hypothesis, mitochondria have lost the autonomy of their prokaryotic ancestors. They have to import most of their proteins from the cytosol because the mitochondrial genome codes for only a small percentage of the ...
Hartl, Franz-Ulrich, Neupert, Walter
core   +1 more source

Molecular Characterization and Expression Response Under Hypoxic-Reoxygenation Stress of a Crustacyanin-Like Gene in Procambarus clarkii

open access: yesProgress in Fishery Sciences
Crustacyanin (CRCN), a family of lipocalin proteins specific to crustaceans, was primarily found in the exoskeleton of crustaceans. By binding with astaxanthin to form the astaxanthin-binding protein complex, it resets the proton at the end of ...
Yiming HAN   +7 more
doaj   +1 more source

Nature's Starships. I. Observed Abundances and Relative Frequencies of Amino Acids in Meteorites [PDF]

open access: yes, 2014
The class of meteorites called carbonaceous chondrites are examples of material from the solar system which have been relatively unchanged from the time of their initial formation. These meteorites have been classified according to the temperatures and physical conditions of their parent planetesimals.
arxiv   +1 more source

Branched chain amino acids, an ''essential'' link between diet, clock and sleep? [PDF]

open access: yesarXiv, 2022
The branched-chain amino acids: leucine, isoleucine and valine occupy a special place among the essential amino acids because of their importance not only in the structure of proteins but also in general and cerebral metabolism. Among the first amino acids absorbed after food intake, they play a major role in the regulation of protein synthesis and ...
arxiv  

Stimulation of a glycosyl-phosphatidylinositol-specific phospholipase by insulin and the sulfonylurea, glimepiride, in rat adipocytes depends on increased glucose transport [PDF]

open access: yes, 1994
. Lipoprotein lipase (LPL) and glycolipidanchored cAMP-binding ectoprotein (Gcel) are modified by glycosyl-phosphatidylinositol (GPI) in rat adipocytes, however, the linkage is potentially unstable. Incubation of the cells with either insulin (0.1-30 nM)
Bandlow, Wolfhard   +3 more
core   +3 more sources

Cloning and sequence analysis of cDNAs encoding the cytosolic precursors of subunits GapA and GapB of chloroplast glyceraldehyde-3-phosphate dehydrogenase from pea and spinach [PDF]

open access: yes, 1989
Chloroplast glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is composed of two different subunits, GapA and GapB. cDNA clones containing the entire coding sequences of the cytosolic precursors for GapA from pea and for GapB from pea and spinach have ...
F Sanger   +35 more
core   +1 more source

The superfamily keeps growing: Identification in trypanosomatids of RibJ, the first riboflavin transporter family in protists [PDF]

open access: yes, 2017
Background: Trypanosomatid parasites represent a major health issue affecting hundreds of million people worldwide, with clinical treatments that are partially effective and/or very toxic.
Balcazar, Dario Emmanuel   +6 more
core   +10 more sources

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