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Ferrisilicalite-1 Zeolite Monolith-Based Affinitive Recognition of Intracellular Phosphorylated Protein Alteration inTetrahymena thermophilaExposed to Photodegradates of Roxarsone andp-Arsanilic Acid
- Source :
- CLEAN - Soil, Air, Water. 42:1798-1807
- Publication Year :
- 2014
- Publisher :
- Wiley, 2014.
-
Abstract
- In this study, heteroatomic ferrisilicalite-1 zeolite monolith (FS-1 ZM) was developed for affinitive recognition of intracellular phosphorylated protein in Tetrahymena thermophila after exposure to organoarsenic feed additives (roxarsone, ROX; p-arsanilic acid, PASA) and their photodegradates. ROX or PASA can be photodegradated into toxic inorganic arsenicals, which has become a public concern. After T. thermophila being exposed to ROX or PASA and their photodegradates, it is of significance to address intracellular protein phosphorylation alteration. However, it is challenging for effective capture of phosphorylated protein under the interference of arsenicals uptake. Followed by ferrisilicalite-1 zeolite monolith based immobilization process, sodium dodecyl sulfate–polyacrylamide electrophoresis, in-gel enzymatic digestion, and subsequent LC–MS/MS methodology, the integrated protocol was firstly attempted for identification of arsenic-induced phosphorylated protein alteration. It was found there was little impact of ROX or PASA on intracellular phosphorylated protein distribution. Alternatively, phosphorylated 14-3-3ϵ was down-regulated after the cells were exposed to photodegradates of ROX or PASA, which were similar to those following exposure to inorganic arsenicals. Overall, inorganic arsenicals present during the degradative pathways of ROX or PASA affect the signal transduction system of T. thermophila cells. The down-regulation of phosphorylated 14-3-3ϵ would be further studied as potential biomarker for organoarsenicals released into the environment.
- Subjects :
- inorganic chemicals
geography
geography.geographical_feature_category
biology
Arsanilic acid
Sodium
Tetrahymena
chemistry.chemical_element
biology.organism_classification
Pollution
chemistry.chemical_compound
chemistry
Biochemistry
Roxarsone
Environmental Chemistry
Phosphorylation
Signal transduction
Monolith
Intracellular
Water Science and Technology
Subjects
Details
- ISSN :
- 18630650
- Volume :
- 42
- Database :
- OpenAIRE
- Journal :
- CLEAN - Soil, Air, Water
- Accession number :
- edsair.doi...........2feb80a8364342e2216c8993437ef70b