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Protein science, 2013-12, Vol.22 (12), p.1698-1710
Ort / Verlag
United States: Wiley Subscription Services, Inc
Erscheinungsjahr
2013
Link zum Volltext
Quelle
Free E-Journal (出版社公開部分のみ）
Beschreibungen/Notizen
Mitogen‐activated protein kinases (MAPKs; ERK1/2, p38, JNK, and ERK5) have evolved to transduce environmental and developmental signals (growth factors, stress) into adaptive and programmed responses (differentiation, inflammation, apoptosis). Almost 20 years ago, it was discovered that MAPKs contain a docking site in the C‐terminal lobe that binds a conserved 13‐16 amino acid sequence known as the D‐ or KIM‐motif (kinase interaction motif). Recent crystal structures of MAPK:KIM‐peptide complexes are leading to a precise understanding of how KIM sequences contribute to MAPK selectivity. In addition, new crystal and especially NMR studies are revealing how residues outside the canonical KIM motif interact with specific MAPKs and contribute further to MAPK selectivity and signaling pathway fidelity. In this review, we focus on these recent studies, with an emphasis on the use of NMR spectroscopy, isothermal titration calorimetry and small angle X‐ray scattering to investigate these processes.