Title : p38 MAP kinase and MAPKAP kinases MK2/3 cooperatively phosphorylate epithelial keratins.

Pub. Date : 2010 Oct 22

PMID : 20724476






5 Functional Relationships(s)
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1 Notably, analysis of small molecule p38 inhibitors on K8-Ser(73) phosphorylation also demonstrated reduced phosphorylations of keratins K18-Ser(52) and K20-Ser(13) but not of K8-Ser(431) or K18-Ser(33). Serine keratin 20 Homo sapiens
2 Interestingly, K18-Ser(52) and K20-Ser(13) are not directly phosphorylated by p38 in vitro, but by MK2. Serine keratin 20 Homo sapiens
3 Furthermore, anisomycin-stimulated phosphorylations of K20-Ser(13) and K18-Ser(52) are inhibited by small molecule inhibitors of both p38 and MK2. Serine keratin 20 Homo sapiens
4 MK2 knockdown in HT29 cells leads to reduced K20-Ser(13) phosphorylation, which further supports the notion that MK2 is responsible for K20 phosphorylation in vivo. Serine keratin 20 Homo sapiens
5 MK2 knockdown in HT29 cells leads to reduced K20-Ser(13) phosphorylation, which further supports the notion that MK2 is responsible for K20 phosphorylation in vivo. Serine keratin 20 Homo sapiens