2022
Microtubule lattice spacing governs cohesive envelope formation of tau family proteins
SIAHAAN, Valerie, Ruensern TAN, Tereza HUMHALOVA, Lenka LIBUSOVA, Samuel E LACEY et. al.Základní údaje
Originální název
Microtubule lattice spacing governs cohesive envelope formation of tau family proteins
Autoři
SIAHAAN, Valerie, Ruensern TAN, Tereza HUMHALOVA, Lenka LIBUSOVA, Samuel E LACEY, Tracy TAN, Mariah DACY, Kassandra M ORI-MCKENNEY, Richard J MCKENNEY, Marcus BRAUN a Zdenek LANSKY
Vydání
Nature Chemical Biology, 2022, 1552-4450
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 14.800
Kód RIV
RIV/00216224:14740/22:00128780
Organizační jednotka
Středoevropský technologický institut
UT WoS
000872703400019
Klíčová slova anglicky
Humans; Microtubule-Associated Proteins; Microtubules; Neurodegenerative Diseases; Proteins; tau Proteins; Tubulin
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 5. 4. 2023 10:46, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
Tau is an intrinsically disordered microtubule-associated protein (MAP) implicated in neurodegenerative disease. On microtubules, tau molecules segregate into two kinetically distinct phases, consisting of either independently diffusing molecules or interacting molecules that form cohesive 'envelopes' around microtubules. Envelopes differentially regulate lattice accessibility for other MAPs, but the mechanism of envelope formation remains unclear. Here we find that tau envelopes form cooperatively, locally altering the spacing of tubulin dimers within the microtubule lattice. Envelope formation compacted the underlying lattice, whereas lattice extension induced tau envelope disassembly. Investigating other members of the tau family, we find that MAP2 similarly forms envelopes governed by lattice spacing, whereas MAP4 cannot. Envelopes differentially biased motor protein movement, suggesting that tau family members could spatially divide the microtubule surface into functionally distinct regions. We conclude that the interdependent allostery between lattice spacing and cooperative envelope formation provides the molecular basis for spatial regulation of microtubule-based processes by tau and MAP2. Keywords
Návaznosti
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