2024
Structural basis of binding the unique N-terminal domain of microtubule-associated protein 2c to proteins regulating kinases of signaling pathways
BARTOŠÍK, Viktor; Jitka PLUCAROVÁ; Alice LANÍKOVÁ; Zuzana JANÁČKOVÁ; Petr PADRTA et. al.Základní údaje
Originální název
Structural basis of binding the unique N-terminal domain of microtubule-associated protein 2c to proteins regulating kinases of signaling pathways
Autoři
BARTOŠÍK, Viktor; Jitka PLUCAROVÁ; Alice LANÍKOVÁ; Zuzana JANÁČKOVÁ; Petr PADRTA; Séverine JANSEN; Tobias GRUBER; Vojtěch VAŘEČKA ORCID; Stephan M FELLER a Lukáš ŽÍDEK
Vydání
International Journal of Biological Chemistry, AMSTERDAM, ANSInet, 2024, 0021-9258
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.900
Kód RIV
RIV/00216224:14740/24:00138072
Organizační jednotka
Středoevropský technologický institut
UT WoS
001365739800001
EID Scopus
2-s2.0-85200983503
Klíčová slova anglicky
GENERAL FORCE-FIELD; A ANCHORING PROTEIN; TYROSINE PHOSPHORYLATION; SECONDARY STRUCTURE; DIPOLAR COUPLINGS; HETERONUCLEAR NMR; AKAP SPECIFICITY; MAP2 EXPRESSION; LARGER PROTEINS; SH2 DOMAIN
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 3. 6. 2025 12:29, Mgr. Eva Dubská
Anotace
V originále
Isoforms of microtubule-associated protein 2 (MAP2) differ from their homolog Tau in the sequence and interactions of the N-terminal region. Binding of the N-terminal region of MAP2c (N-MAP2c) to the dimerization/docking domains of the regulatory subunit RIIa of cAMP-dependent protein kinase (RIIDD2) and to the Src-homology domain 2 (SH2) of growth factor receptor-bound protein 2 (Grb2) have been described long time ago. However, the structural features of the complexes remained unknown due to the disordered nature of MAP2. Here, we provide structural description of the complexes. We have solved solution structure of N-MAP2c in complex with RIIDD2, confirming formation of an amphiphilic a-helix of MAP2c upon binding, defining orientation of the ahelix in the complex and showing that its binding register differs from previous predictions. Using chemical shift mapping, we characterized the binding interface of SH2-Grb2 and rat MAP2c phosphorylated by the tyrosine kinase Fyn in their complex and proposed a model explaining differences between SH2-Grb2 complexes with rat MAP2c and phosphopeptides with a Grb2-specific sequence. The results provide the structural basis of a potential role of MAP2 in regulating cAMPdependent phosphorylation cascade via interactions with RIIDD2 and Ras signaling pathway via interactions with SH2
Návaznosti
| EF18_046/0015974, projekt VaV |
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| GA20-12669S, projekt VaV |
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| MUNI/A/1641/2023, interní kód MU |
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| 90242, velká výzkumná infrastruktura |
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