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The hydroxylation of proline residues to 4-trans-hydroxyproline (Hyp) is a common post-translational protein modification in plants, mediated by prolyl 4-hydroxylases (P4Hs). Hyps predominantly occur in a group of cell wall proteins, the Hydroxyproline-rich glycoproteins (HRGPs), where they are freq...
ORGANISM(S): Physcomitrella patens subsp. patens (Moss) 
2024-08-10 | PXD051497 | Pride
Collagen from the skin of wild type and prolyl 4-hydroxylase mutant mice was extracted and proline hydroxylation of the collagen-derived peptides were analyzed by LC-MS/MS.
ORGANISM(S): Mus musculus (Mouse) 
2018-04-10 | PXD008802 | Pride
The hypoxia inducible factor (HIF) system orchestrates cellular responses to hypoxia in animals. HIF is an /-heterodimeric transcription factor that regulates the expression of hundreds of genes in a context dependent manner. A hypoxia-sensing component of the HIF system involves oxygen-dependent ca...
ORGANISM(S): Homo sapiens 
Protein hydroxylation extensively regulates cellular signaling by affecting protein stability, protein-protein interaction and protein activity, and its dysregulation contributes to the pathogenesis of various diseases including cancers. However, because of the transient nature of the enzyme-substra...
ORGANISM(S): Homo Sapiens (ncbitaxon:9606) 
2020-10-02 | MSV000086231 | MassIVE
We established a mouse embryonic fibroblast (MEF) cell line derived from mice that have a genetic ablation of of P4ha1. Type I collagen produced by these cells in presence of ascorbate was collected and partially purified by precipitation. Site specific hydroxylation analysis was performed using mas...
ORGANISM(S): Mus musculus (Mouse) 
2023-12-15 | PXD035945 | Pride
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