ArticleChembiochem : a European journal of chemical biology2021
Structural Insights into the Interaction of Heme with Protein Tyrosine Kinase JAK2*.
Article in Chembiochem : a European journal of chemical biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 7 citations in OpenAlex.
- Hemin suppresses interferon responses in periodontal cell models through JAK2-STAT1 inhibition.Frontiers in immunology · 2026Article
- Depletion assisted hemin affinity (DAsHA) proteomics reveals an expanded landscape of heme-binding proteins in the human proteome.Metallomics : integrated biometal science · 2023Article
- An Extended C-Terminus, the Possible Culprit for Differential Regulation of 5-Aminolevulinate Synthase Isoforms.Frontiers in molecular biosciences · 2022Review
- Structural Insights into the Interaction of Heme with Protein Tyrosine Kinase JAK2*.Chembiochem : a European journal of chemical biology · 2021Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
Janus kinase 2 (JAK2) is the most important signal-transducing tyrosine kinase in erythropoietic precursor cells. Its malfunction drives several myeloproliferative disorders. Heme is a small metal-ion-carrying molecule that is incorporated into hemoglobin in erythroid precursor cells to transport oxygen. In addition, heme is a signaling molecule and regulator of various biochemical processes. Here, we show that heme exposure leads to hyperphosphorylation of JAK2 in a myeloid cancer cell line. Two peptides identified in JAK2 are heme-regulatory motifs and show low-micromolar affinities for heme. These peptides map to the kinase domain of JAK2, which is essential for downstream signaling. We suggest these motifs to be the interaction sites of heme with JAK2, which drive the heme-induced hyperphosphorylation. The results presented herein could facilitate the development of heme-related pharmacological tools to combat myeloproliferative disorders.
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Registered trials
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