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Orthologous residues
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PIAS1 (human): S522‑p, PIAS1 (mouse): S522‑p, PIAS1 (rat): S522‑p
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Characterization
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Methods used to characterize site in vivo:
mutation of modification site, phospho-antibody, western blotting
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Relevant cell lines - cell types - tissues:
bEnd3, HUVEC (endothelial)
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Cellular systems studied:
cell lines
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Species studied:
human, mouse
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Enzymes shown to modify site in vitro:
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Upstream Regulation
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Potential in vivo enzymes for site:
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Type
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Enzyme
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Evidence
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Notes
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KINASE
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MAPKAPK2 (human)
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siRNA inhibition of enzyme, pharmacological activator of upstream enzyme
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Treatments, proteins and their effect on site modification:
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Treatments
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Referenced Treatments
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Manipulated Protein
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Referenced Protein
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Effect
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Notes
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TNF
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increase
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siRNA
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TNF
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inhibit treatment-induced increase
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MK2 siRNA
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Downstream Regulation
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Effect of modification (function):
enzymatic activity, induced, sumoylation
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Effect of modification (process):
transcription, inhibited
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Comments:
PIAS1 S522A expression inhibits TNF-induced sumoylation of p53; inhibits inflammatory genes expression;
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