Actin-associated proteins and small molecules targeting the actin cytoskeleton

J Gao, F Nakamura - International journal of molecular sciences, 2022 - mdpi.com
Actin-associated proteins (AAPs) act on monomeric globular actin (G-actin) and polymerized
filamentous actin (F-actin) to regulate their dynamics and architectures which ultimately …

Spectrins: molecular organizers and targets of neurological disorders

DN Lorenzo, RJ Edwards, AL Slavutsky - Nature Reviews …, 2023 - nature.com
Spectrins are cytoskeletal proteins that are expressed ubiquitously in the mammalian
nervous system. Pathogenic variants in SPTAN1, SPTBN1, SPTBN2 and SPTBN4, four of …

Pathogenic SPTBN1 variants cause an autosomal dominant neurodevelopmental syndrome

MA Cousin, BA Creighton, KA Breau, RC Spillmann… - Nature …, 2021 - nature.com
SPTBN1 encodes βII-spectrin, the ubiquitously expressed β-spectrin that forms micrometer-
scale networks associated with plasma membranes. Mice deficient in neuronal βII-spectrin …

Molecular mechanism for direct actin force-sensing by α-catenin

L Mei, S Espinosa de los Reyes, MJ Reynolds… - Elife, 2020 - elifesciences.org
The actin cytoskeleton mediates mechanical coupling between cells and their tissue
microenvironments. The architecture and composition of actin networks are modulated by …

[HTML][HTML] Structural basis of membrane skeleton organization in red blood cells

N Li, S Chen, K Xu, MT He, MQ Dong, QC Zhang… - Cell, 2023 - cell.com
The spectrin-based membrane skeleton is a ubiquitous membrane-associated two-
dimensional cytoskeleton underneath the lipid membrane of metazoan cells. Mutations of …

Structural characteristics, binding partners and related diseases of the calponin homology (CH) domain

LM Yin, M Schnoor, CD Jun - Frontiers in Cell and Developmental …, 2020 - frontiersin.org
The calponin homology (CH) domain is one of the most common modules in various actin-
binding proteins and is characterized by an α-helical fold. The CH domain plays important …

Structural basis of the filamin A actin-binding domain interaction with F-actin

DV Iwamoto, A Huehn, B Simon… - Nature structural & …, 2018 - nature.com
Actin-cross-linking proteins assemble actin filaments into higher-order structures essential
for orchestrating cell shape, adhesion, and motility. Missense mutations in the tandem …

Molecular architecture of the human tRNA ligase complex

A Kroupova, F Ackle, I Asanović, S Weitzer… - Elife, 2021 - elifesciences.org
RtcB enzymes are RNA ligases that play essential roles in tRNA splicing, unfolded protein
response, and RNA repair. In metazoa, RtcB functions as part of a five-subunit tRNA ligase …

Structural mechanism for bidirectional actin cross-linking by T-plastin

L Mei, MJ Reynolds, D Garbett… - Proceedings of the …, 2022 - National Acad Sciences
To orchestrate cell mechanics, trafficking, and motility, cytoskeletal filaments must assemble
into higher-order networks whose local subcellular architecture and composition specify …

Biased localization of actin binding proteins by actin filament conformation

AR Harris, P Jreij, B Belardi, AM Joffe… - Nature …, 2020 - nature.com
The assembly of actin filaments into distinct cytoskeletal structures plays a critical role in cell
physiology, but how proteins localize differentially to these structures within a shared …