Journal
ELIFE
Volume 4, Issue -, Pages -Publisher
ELIFE SCIENCES PUBLICATIONS LTD
DOI: 10.7554/eLife.10067
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Funding
- National Institutes of Health [R01-DK053307, R37-DK060596, R01-HL58984, R01-DK013499, DK48280, 1S10RR031537-01]
- Canada Excellence Research Chairs, Government of Canada [CERC08]
- American Heart Association [13SDG17070096]
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The sulfhydration of cysteine residues in proteins is an important mechanism involved in diverse biological processes. We have developed a proteomics approach to quantitatively profile the changes of sulfhydrated cysteines in biological systems. Bioinformatics analysis revealed that sulfhydrated cysteines are part of a wide range of biological functions. In pancreatic p cells exposed to endoplasmic reticulum (ER) stress, elevated H2S promotes the sulfhydration of enzymes in energy metabolism and stimulates glycolytic flux. We propose that transcriptional and translational reprogramming by the integrated stress response (ISR) in pancreatic p cells is coupled to metabolic alternations triggered by sulfhydration of key enzymes in intermediary metabolism.
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