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.

Basic information

Original name

Microtubule lattice spacing governs cohesive envelope formation of tau family proteins

Authors

SIAHAAN, Valerie, Ruensern TAN, Tereza HUMHALOVA, Lenka LIBUSOVA, Samuel E LACEY, Tracy TAN, Mariah DACY, Kassandra M ORI-MCKENNEY, Richard J MCKENNEY, Marcus BRAUN and Zdenek LANSKY

Edition

Nature Chemical Biology, 2022, 1552-4450

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 14.800

RIV identification code

RIV/00216224:14740/22:00128780

Organization unit

Central European Institute of Technology

UT WoS

000872703400019

Keywords in English

Humans; Microtubule-Associated Proteins; Microtubules; Neurodegenerative Diseases; Proteins; tau Proteins; Tubulin

Tags

Tags

International impact, Reviewed
Změněno: 5/4/2023 10:46, Mgr. Pavla Foltynová, Ph.D.

Abstract

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

Links

90127, large research infrastructures
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