scholarly journals Isobaric tags for relative and absolute quantification-based proteomic analysis of testis biopsies in rhesus monkeys treated with transient scrotal hyperthermia

Oncotarget ◽  
2017 ◽  
Vol 8 (49) ◽  
pp. 85909-85925 ◽  
Author(s):  
Meng Rao ◽  
Sha Ma ◽  
Shifu Hu ◽  
Hui Lei ◽  
Yanqing Wu ◽  
...  
Keyword(s):  
Proteomic Analysis ◽  
Rhesus Monkeys ◽  
Absolute Quantification ◽  
Isobaric Tags

scholarly journals Comparative Proteomic Analysis of Dipsacus asperoides Roots from Different Habitats in China

Molecules ◽  
2020 ◽  
Vol 25 (16) ◽  
pp. 3605
Author(s):  
Haijun Jin ◽  
Hua Yu ◽  
Haixia Wang ◽  
Jia Zhang
Keyword(s):  
Proteomic Analysis ◽  
Absolute Quantification ◽  
Pcr Analysis ◽  
Allene Oxide ◽  
Allene Oxide Cyclase ◽  
Protein Levels ◽  
Depth Analysis ◽  
Differential Proteins ◽  
Isobaric Tags

Dipsacus asperoides is a kind of Chinese herbal medicine with beneficial health properties. To date, the quality of D. asperoides from different habitats has shown significant differences. However, the molecular differences in D. asperoides from different habitats are still unknown. The aim of this study was to investigate the differences in protein levels of D. asperoides from different habitats. Isobaric tags for relative and absolute quantification (iTRAQ) and 2DLC/MS/MS were used to detect statistically significant changes in D. asperoides from different habitats. Through proteomic analysis, a total of 2149 proteins were identified, of which 42 important differentially expressed proteins were screened. Through in-depth analysis of differential proteins, the protein metabolism energy and carbohydrate metabolism of D. asperoides from Hubei Province were strong, but their antioxidant capacity was weak. We found that three proteins, UTP-glucose-1-phosphate uridylyltransferase, allene oxide cyclase, and isopentyl diphosphate isomerase 2, may be the key proteins involved in dipsacus saponin VI synthesis. Eight proteins were found in D. asperoides in response to environmental stress from different habitats. Quantitative real-time PCR analysis confirmed the accuracy and authenticity of the proteomic analysis. The results of this study may provide the basic information for exploring the cause of differences in secondary metabolites in different habitats of D. asperoides and the protein mechanism governing differences in quality.

scholarly journals Quantitative proteomic analysis of G-protein signalling inStagonospora nodorumusing isobaric tags for relative and absolute quantification

PROTEOMICS ◽  
2010 ◽  
Vol 10 (1) ◽  
pp. 38-47 ◽  
Author(s):  
Tammy Casey ◽  
Peter S. Solomon ◽  
Scott Bringans ◽  
Kar-Chun Tan ◽  
Richard P. Oliver ◽  
...  
Keyword(s):  
G Protein ◽  
Proteomic Analysis ◽  
Absolute Quantification ◽  
Quantitative Proteomic Analysis ◽  
G Protein Signalling ◽  
Isobaric Tags

scholarly journals Proteomic Analysis of Beef Tenderloin and Flank Assessed Using an Isobaric Tag for Relative and Absolute Quantitation (iTRAQ)

Animals ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 150
Author(s):  
Zhaomin Lei ◽  
Jianping Wu ◽  
Deyin Zhang ◽  
Ting Liu ◽  
Shengguo Zhao ◽  
...  
Keyword(s):  
Proteomic Analysis ◽  
Expression Patterns ◽  
Tca Cycle ◽  
Absolute Quantification ◽  
Absolute Quantitation ◽  
Oxidation Reduction ◽  
The Tca Cycle ◽  
Isobaric Tag ◽  
Isobaric Tags

Herein, we performed a proteomic analysis of tenderloin and flank steaks from Simmental cattle using the isobaric tags for a relative and absolute quantification (iTRAQ) approach. We identified 17 amino acids in both steaks, and Gly, Cys, Ile, Lys, and Pro differed most in abundance between the steak types (p < 0.05). A comparison of the expression patterns in steaks revealed 128 differentially expressed proteins (DEPs), of which 44 were up-regulated and 84 were down-regulated. Furthermore, 27 DEPs (p < 0.05) were subjected to gene ontology (GO) analysis, and many were found to be related to oxidation-reduction, metabolism, hydrogen ion transmembrane transport, transport, the tricarboxylic acid (TCA) cycle, mitochondrial electron transport, and the conversion of nicotinamide adenine dinucleotide (NADH) to ubiquinone. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis also implicated these DEPs in various signalling pathways, including oxidative phosphorylation, cardiac muscle contraction, the TCA cycle, biosynthesis, and the metabolism. These findings provide a new insight into key proteins involved in the determination of amino acid composition in beef.

scholarly journals Proteomic Analysis of Rapeseed Root Response to Waterlogging Stress

Plants ◽  
2018 ◽  
Vol 7 (3) ◽  
pp. 71 ◽  
Author(s):  
Jinsong Xu ◽  
Xing Qiao ◽  
Zhitao Tian ◽  
Xuekun Zhang ◽  
Xiling Zou ◽  
...  
Keyword(s):  
Proteomic Analysis ◽  
Molecular Mechanisms ◽  
Yangtze River Basin ◽  
Reduction Process ◽  
Absolute Quantification ◽  
Brassica Napus L ◽  
Waterlogging Stress ◽  
Oxidation Reduction ◽  
Root Response ◽  
Isobaric Tags

The overall health of a plant is constantly affected by the changing and hostile environment. Due to climate change and the farming pattern of rice (Oryza sativa) and rapeseed (Brassica napus L.), stress from waterlogging poses a serious threat to productivity assurance and the yield of rapeseed in China’s Yangtze River basin. In order to improve our understanding of the complex mechanisms behind waterlogging stress and identify waterlogging-responsive proteins, we firstly conducted iTRAQ (isobaric tags for relative and absolute quantification)-based quantitative proteomic analysis of rapeseed roots under waterlogging treatments, for both a tolerant cultivar ZS9 and sensitive cultivar GH01. A total of 7736 proteins were identified by iTRAQ, of which several hundred showed different expression levels, including 233, 365, and 326 after waterlogging stress for 4H, 8H, and 12H in ZS9, respectively, and 143, 175, and 374 after waterlogging stress for 4H, 8H, and 12H in GH01, respectively. For proteins repeatedly identified at different time points, gene ontology (GO) cluster analysis suggested that the responsive proteins of the two cultivars were both enriched in the biological process of DNA-dependent transcription and the oxidation–reduction process, and response to various stress and hormone stimulus, while different distribution frequencies in the two cultivars was investigated. Moreover, overlap proteins with similar or opposite tendencies of fold change between ZS9 and GH01 were observed and clustered based on the different expression ratios, suggesting the two genotype cultivars exhibited diversiform molecular mechanisms or regulation pathways in their waterlogging stress response. The following qRT-PCR (quantitative real-time polymerase chain reaction) results verified the candidate proteins at transcription levels, which were prepared for further research. In conclusion, proteins detected in this study might perform different functions in waterlogging responses and would provide information conducive to better understanding adaptive mechanisms under environmental stresses.

Physiological and proteomic analysis of Stenotrophomonas maltophilia grown under the iron-limited condition

2019 ◽  
Vol 14 (16) ◽  
pp. 1417-1428
Author(s):  
Adleen Azman ◽  
Kalidasan Vasodavan ◽  
Narcisse Joseph ◽  
Suresh Kumar ◽  
Rukman A Hamat ◽  
...  
Keyword(s):  
Normal Condition ◽  
Proteomic Analysis ◽  
Stenotrophomonas Maltophilia ◽  
Iron Acquisition ◽  
Absolute Quantification ◽  
Siderophore Production ◽  
Virulence Proteins ◽  
Killing Rate ◽  
Limited Condition ◽  
Isobaric Tags

Aims: To study physiological and proteomic analysis of Stenotrophomonas maltophilia grown under iron-limited condition. Methods: One clinical and environmental S. maltophilia isolates grown under iron-depleted conditions were studied for siderophore production, ability to kill nematodes and alteration in protein expression using isobaric tags for relative and absolute quantification (ITRAQ). Results & conclusions: Siderophore production was observed in both clinical and environmental strains under iron-depleted conditions. Caenorhabditis elegans assay showed higher killing rate under iron-depleted (96%) compared with normal condition (76%). The proteins identified revealed, 96 proteins upregulated and 26 proteins downregulated for the two isolates under iron depletion. The upregulated proteins included several iron acquisition proteins, metabolic proteins and putative virulence proteins.

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