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Identify SUMO-modified proteins and determine the potential SUMO-specific protease target

ABSTRACT: Because SUMO modifications can change the molecular weight and/or the isoelectric point of target proteins, or cause degradation of target protein as well, we then compared the proteome of V592 and VdT-DNA using two-dimensional gel electrophoresis to separate proteins on the basis of their size and of their charge.

INSTRUMENT(S):

ORGANISM(S): Verticillium Dahliae Vdls.17

TISSUE(S): Fungus

SUBMITTER: bosen zhang

LAB HEAD: huishan guo

PROVIDER: PXD043986 | Pride | 2023-08-01

REPOSITORIES: Pride

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Global proteomic analysis deciphers the mechanism of action of plant derived oleic acid against Candida albicans virulence and biofilm formation

Project description:Candida albicans is a commensal fungus in humans, mostly found on the mucosal surfaces of the mouth, gut, vagina and skin. Incidence of ever increasing invasive candidiasis in immunocompromised patients, alarming occurrence of antifungal resistance and insufficient diagnostic methods demand more focused research into C. albicans pathogenicity. Consequently, in the present study, oleic acid from Murraya koenigii was shown to have the efficacy to inhibit biofilm formation and virulence of Candida spp. Results of in vitro virulence assays and gene expression analysis, impelled to study the protein targets which are involved in the molecular pathways of C. albicans pathogenicity. Proteomic studies of differentially expressed proteins reveals that oleic acid induces oxidative stress responses and mainly targets the proteins involved in glucose metabolism, ergosterol biosynthesis, lipase production, iron homeostasis and amino acid biosynthesis. The current study emphasizes anti-virulent potential of oleic acid which can be used as a therapeutic agent to treat Candida infections.

2020-05-27 | PXD017588 | Pride

Variations of Metabolites and Proteome from Lonicera japonica Thunb. Buds Blossom to Flowers under UV Radiation

Project description:Lonicera japonica Thunb., known as Jin Yin Hua or Japanese honeysuckle, is an herbal medicine in Asian countries. Its flowers have been used as folk medicine for clinical practice or used as food or making healthy beverage for 1500 years in China. To investigate the molecular developmental processes from L. japonica buds to flowers under UV radiation, comparative proteomics analyses of buds and flowers were performed. Fifty-four differential proteins were identified including 42 increased proteins and 12 decreased proteins. The abundance of proteins related to glycolysis, TCA/organic acid transformation, major carbohydrate metabolism, oxidative pentose phosphate, stress, secondary metabolism, hormone, and mitochondrial electron transport were increased during flower opening process under UV radiation. Six metabolites were identified and relatively quantified by LC-MS/MS in L. japonica buds and flowers. The 1,1-diphenyl-2-picrylhydrazyl assay revealed that antioxidant activity of L. japonica buds was better than that of flowers. These results suggest that UV-B radiation could induce the production of endogenous ethylene in L. japonica buds, which facilitate the buds blossom and activate the antioxidant system. Additionally, the higher content of metabolites and antioxidant capability in L. japonica buds indicates that L. japonica buds stage might be the better harvest time compared to the flower.

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Matrisome remodelling during Intervertebral Disc development and ageing

Project description:Intervertebral disc (IVD) degeneration is often the cause of low back pain. Degeneration occurs with age and is accompanied by extracellular matrix (ECM) depletion, culminating in nucleus pulpous (NP) extrusion and IVD destruction. The changes that occur in the disc with age have been under investigation. However, a thorough study of ECM remodelling is needed, to better understand IVD development and age-associated degeneration. As so, iTRAQ LC-MS/MS analysis of foetus, young and old bovine NPs, was used to define the NP matrisome. The enrichment of Collagen XII and XIV in foetus, Fibronectin and Prolargin in elder samples and Collagen XI in young ones was independently validated. This study provides the first matrisome database of healthy discs during development and ageing, which is key to determine the pathways and processes that maintain disc homeostasis. The factors identified may help to explain age-associated IVD degeneration or constitute putative effectors for disc regeneration.

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Excess copper-induced alterations of protein profiles by a 2-DE based MS method and related physiological parameters in Citrus leaves

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Proteomic analysis of Citrus sinensis roots and leaves in response to long-term magnesium-deficiency

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Boron-toxicity-induced alterations of protein profiles in roots of two citrus species differing in boron-tolerance revealed by 2-DE

Project description:After long-term different boron and aluminum treatment, 2D electrophoresis and mass spectrum were conducted to investigate different proteiomic profile in Citrus sinensis roots samples.

2018-10-26 | PXD004050 | Pride

Low pH-responsive proteins revealed by a 2-DE based MS approach and related physiological responses in Citrus leaves

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Proteome profile analysis of boron-induced alleviation of aluminum-toxicity in Citrus grandis roots by 2-dimentional electrophoresis (2-DE) technique

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2021-09-09 | PXD021675 | Pride

Proteomic analysis of fresh, equilibrated, and frozen/thawed turkey semen in relation to the extracellular fluid proteome

Project description:The cryopreservation of avian semen without significant loss of fertilizing ability is of practical interest to the poultry industry and for the conservation of genetic biodiversity. However, the unique physiological features make avian spermatozoa highly sensitive to damage caused by cryopreservation. The proteomic changes in turkey (Meleagris gallopavo) semen throughout the cryopreservation process have never been investigated previously. Therefore, the purpose of the present study was to evaluate the proteomic changes of extracellular fluid (ECF)of semen during cryopreservation at three stages (fresh, equilibrated, and frozen/thawed semen) using 2-dimensional difference in-gel electrophoresis (2D-DIGE) coupled with matrix-assisted laser desorption/ionization mass spectrometry (MALDI TOF/TOF). Six protein spots were significantly enriched in ECF proteome after equilibration compared to fresh semen. Twenty seven protein spots were enriched in ECF after cryopreservation compared to fresh semen. Twenty six protein spots were significantly enriched in ECF proteome after cryopreservation compared to equilibrated semen. The proteins enriched in ECF after cryopreservation were mainly related to NADH metabolic and glycolytic process.

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