Ultraviolet Photostability Improvement for Autofluorescence Correlation Spectroscopy on Label-Free Proteins [PDF]
arXiv, 2020 The poor photostability and low brightness of protein autofluorescence have been major limitations preventing the detection of label-free proteins at the single molecule level. Overcoming these issues, we report here a strategy to promote the photostability of proteins and use their natural tryptophan autofluorescence in the ultraviolet (UV) for ...
arxiv
Sirtuin 2 regulates neutrophil functions through NAD+ synthesis pathway in virus infection
iScienceSummary: Neutrophils play an important role in antiviral immunity, but the underlying mechanisms remain unclear. Here, we found that SIRT2 deficiency inhibited the infiltration of neutrophils, as well as the secretion of inflammatory cytokines and the ...
Zhiyuan Zhang +7 more
doaj
Is Amino-Acid Homochirality Due To Asymmetric Photolysis In Space? [PDF]
arXiv, 1999 Amino acids occurring in proteins are, with rare exceptions, exclusively of the L-configuration. Among the many scenarios put forward to explain the origin of this chiral homogeneity (i.e., homochirality), one involves the asymmetric photolysis of amino acids present in space, triggered by circularly polarized UV radiation.
arxiv
Superparamagnetism of tryptophan and walk memory of proteins [PDF]
arXiv, 2015 Superparamagnetism of tryptophan implying the presence of magnetic domain is reported. The observation helps us to conceive assembly of proteins as a physical lattice gas with multidimensional Ising character, each lattice points assuming discrete spin states. When magnetic field is applied the equilibrium is lost and the population density of one spin
arxiv
Investigating resonance energy transfer from protein molecules to van der Waals nanosheets [PDF]
arXiv, 2016 The resonance energy transfer (RET) from tryptophan present in bovine serum albumin (BSA) to two dimensional (2D) nanomaterials has been reported. In these bio-nano systems, BSA molecules act as efficient donors while 2D van der Waals nanosheets of graphene, molybdenum disulfide (Mo$S_2$) and tungsten disulfide (W$S_2$) act as acceptors.
arxiv
On the origin of infrared bands attributed to tryptophan in Spitzer observations of IC 348 [PDF]
arXivInfrared emission features toward interstellar gas of the IC 348 star cluster in Perseus have been recently proposed to originate from the amino acid tryptophan. The assignment was based on laboratory infrared spectra of tryptophan pressed into pellets, a method which is known to cause large frequency shifts compared to the gas phase.
arxiv
Translation of mRNA from Rat-Liver Polysomes into Tyrosine Aminotransferase and Tryptophan Oxygenase in a Protein-Synthesizing System from Wheat Germ. Effects of Cortisol on the Translatable Levels of mRNA for These Two Enzymes [PDF]
, 1976 Walter Roewekamp +2 more
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Characterization of a naphthalene dioxygenase endowed with an exceptionally broad substrate specificity toward polycyclic aromatic hydrocarbons [PDF]
Biochemistry (American Chemical Society) 45 (2006) 12380-12391, 2009 In Sphingomonas CHY-1, a single ring-hydroxylating dioxygenase is responsible for the initial attack of a range of polycyclic aromatic hydrocarbons (PAHs) composed of up to five rings. The components of this enzyme were separately purified and characterized. The oxygenase component (ht-PhnI) was shown to contain one Rieske-type [2Fe-2S] cluster and one
arxiv
Glucocorticoid induction of the rat tryptophan oxygenase gene is mediated by two widely separated glucocorticoid-responsive elements. [PDF]
, 1987 Ulrich Danesch +5 more
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Isolation and characterization of the rat tryptophan oxygenase gene. [PDF]
, 1982 Wolfgang Schmid +7 more
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