Sharif CC_YuklE_111022_RawData
Ontology highlight
ABSTRACT:
INSTRUMENT(S): Orbitrap Eclipse Tribrid mass spectrometer
ORGANISM(S): Caulobacter Crescentus Cb15 (ncbitaxon:190650)
SUBMITTER: 
Erik T. Yukl
PROVIDER: MSV000092147 | MassIVE | Mon Jun 12 14:39:00 BST 2023
REPOSITORIES: MassIVE
Similar Datasets
Project description:Neuronal nitric oxide synthase 1 (NOS1) produces the gaseous signaling molecule nitric oxide (NO), which plays important roles in the development and function of the nervous system. The regulation of Nos1 gene expression is incompletely understood. Here, we explored the role of physiological hypoxia in the control of Nos1 transcription and the underlying mechanisms using N1E115 mouse neuroblastoma cells as a model. N1E115 cells were cultured for 3 days at high (20%) and low (4%) oxygen levels. Following the verification of upregulation of Nos1 mRNA and protein levels in response to 4% oxygen, we analyzed HIF1A and ARNT binding by chromatin immunoprecipitation-sequencing.
2024-02-14 | GSE139477 | GEO
Project description:Stone1996 - activation of soluble guanylate
cyclase by nitric oxide
This features the two step binding of
NO to soluble Guanylyl Cyclase as proposed by
Stone
JR, Marletta MA. Biochemistry (1996) 35(4):1093-9 . There is a
fast step binding scheme and a slow step binding scheme. The
difference lies in the binding of a NO to a non-heme site on sGC,
which may not necessarily be the same site of binding during the
initial binding. The rates have been directly used models.
This model is described in the article:
Spectral and kinetic studies
on the activation of soluble guanylate cyclase by nitric
oxide.
Stone JR, Marletta MA.
Biochemistry 1996 Jan; 35(4):
1093-1099
Abstract:
The soluble form of guanylate cyclase (sGC) is the only
definitive receptor for the signaling agent nitric oxide (.NO).
The enzyme is a heterodimer of homologous subunits in which
each subunit binds 1 equiv of 5-coordinate high-spin heme. .NO
increases the Vmax of sGC up to 400-fold and has previously
been shown to bind to the heme to form a 5-coordinate complex.
Using stopped-flow spectrophotometry, it is demonstrated that
the binding of .NO to the heme of sGC is a complex process. .NO
first binds to the heme to form a 6-coordinate nitrosyl
complex, which then converts to a 5-coordinate nitrosyl complex
through one of two ways. For 28 +/- 4% of the heme, the
6-coordinate nitrosyl complex rapidly (approximately 20 s-1)
converts to the 5-coordinate complex. For the remaining 72 +/-
4% of the heme, the conversion of the 6-coordinate nitrosyl
complex to a 5-coordinate nitrosyl complex is slow (0.1-1.0
s-1) and is dependent upon the interaction of .NO with an
unidentified non-heme site on the protein. The heme (200 nM)
was completely converted to the 5-coordinate state with as
little as 500 nM .NO, and the equilibrium dissociation constant
of .NO for activating the enzyme was determined to be < or =
250 nM. Gel-filtration analysis indicates that the binding of
.NO to the heme has no effect on the native molecular mass of
the protein. Correlation of electronic absorption spectra with
activity measurements indicates that the 5-coordinate nitrosyl
form of the enzyme is activated relative to the resting
5-coordinate ferrous form of the enzyme.
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2024-09-02 | BIOMD0000000198 | BioModels
Project description:Neuronal nitric oxide synthase 1 (NOS1) produces the gaseous signaling molecule nitric oxide (NO), which plays important roles in the development and function of the nervous system. The regulation of Nos1 gene expression is incompletely understood. Here, we explored the role of physiological hypoxia in the control of Nos1 transcription and the underlying mechanisms using N1E115 mouse neuroblastoma cells as a model. N1E115 cells were cultured for 3 days at high (20%) and low (4%) oxygen levels. Following the verification of upregulation of Nos1 mRNA and protein levels in response to 4% oxygen, we performed transcriptome analysis using stranded total RNA-sequencing.
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Project description:Neuronal nitric oxide synthase 1 (NOS1) produces the gaseous signaling molecule nitric oxide (NO), which plays important roles in the development and function of the nervous system. The regulation of Nos1 gene expression is incompletely understood. Here, we explored the role of physiological hypoxia in the control of Nos1 transcription and the underlying mechanisms using N1E115 mouse neuroblastoma cells as a model. N1E115 cells were cultured for 3 days at high (20%) and low (4%) oxygen levels. Following the verification of upregulation of Nos1 mRNA and protein levels in response to 4% oxygen, we analyzed 3-dimensional chromosome conformation by HiC.
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Project description:Calorie restriction is known to extend lifespan among organisms by a debating mechanism underlying nitric oxide-driven mitochondrial biogenesis. We report here that nitric oxide generators including artemisinin, sodium nitroprusside, and L-arginine mimics calorie restriction and resembles hydrogen peroxide to initiate the nitric oxide signaling cascades and to elicit the global antioxidative responses in mice. The large quantities of antioxidant enzymes are correlated with the low levels of reactive oxygen species, which allow the down-regulation of tumor suppressors and accessory DNA repair partners, eventually leading to the compromise of telomere shortening. Accompanying with the up-regulation of kinases, acetylases, and biomarkers, mitochondrial biogenesis occurs with the elevation of adenosine triphosphate levels upon exposure of mouse skeletal muscles to the mimetics of calorie restriction. In conclusion, calorie restriction-triggered nitric oxide provides antioxidative protection and alleviates telomere attrition via mitochondrial biogenesis, thereby maintaining chromosomal stability and integrity, which are the hallmarks of longevity. Six samples were analyzed, in which a control sample was included.
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Project description:Neuronal nitric oxide synthase 1 (NOS1) produces the gaseous signaling molecule nitric oxide (NO), which plays important roles in the development and function of the nervous system. The regulation of Nos1 gene expression is incompletely understood. Here, we explored the role of physiological hypoxia in the control of Nos1 transcription and the underlying mechanisms using N1E115 mouse neuroblastoma cells as a model. N1E115 cells were cultured for 3 days at high (20%) and low (4%) oxygen levels. Following the verification of upregulation of Nos1 mRNA and protein levels in response to 4% oxygen, we analyzed the genome-wide distribution of the histone marks H3K27ac, H3K27me3, H3K36me3, H3K4me1, and H3K4me3 by chromatin immunoprecipitation-sequencing.
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Project description:Neuronal nitric oxide synthase 1 (NOS1) produces the gaseous signaling molecule nitric oxide (NO), which plays important roles in the development and function of the nervous system. The regulation of Nos1 gene expression is incompletely understood. Here, we explored the role of physiological hypoxia in the control of Nos1 transcription and the underlying mechanisms using N1E115 mouse neuroblastoma cells as a model. N1E115 cells were cultured for 3 days at high (20%) and low (4%) oxygen levels. Following the verification of upregulation of Nos1 mRNA and protein levels in response to 4% oxygen, we analyzed the genome-wide distribution of CTCF, RAD21, total and S2- or S5-phosphorylated RNA polymerase II, and the histone mark H3K9ac by chromatin immunoprecipitation-sequencing.
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Project description:Calorie restriction is known to extend lifespan among organisms by a debating mechanism underlying nitric oxide-driven mitochondrial biogenesis. We report here that nitric oxide generators including artemisinin, sodium nitroprusside, and L-arginine mimics calorie restriction and resembles hydrogen peroxide to initiate the nitric oxide signaling cascades and to elicit the global antioxidative responses in mice. The large quantities of antioxidant enzymes are correlated with the low levels of reactive oxygen species, which allow the down-regulation of tumor suppressors and accessory DNA repair partners, eventually leading to the compromise of telomere shortening. Accompanying with the up-regulation of kinases, acetylases, and biomarkers, mitochondrial biogenesis occurs with the elevation of adenosine triphosphate levels upon exposure of mouse skeletal muscles to the mimetics of calorie restriction. In conclusion, calorie restriction-triggered nitric oxide provides antioxidative protection and alleviates telomere attrition via mitochondrial biogenesis, thereby maintaining chromosomal stability and integrity, which are the hallmarks of longevity.
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