J 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

Štítky

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

90127, velká výzkumná infrastruktura
Název: CIISB II