The mechanisms of thin filament assembly and length regulation in muscles

S Szikora, P Görög, J Mihály - International journal of molecular sciences, 2022 - mdpi.com
The actin containing tropomyosin and troponin decorated thin filaments form one of the
crucial components of the contractile apparatus in muscles. The thin filaments are organized …

The role of leiomodin in actin dynamics: A new road or a secret gate

D Tolkatchev, CC Gregorio, AS Kostyukova - The FEBS journal, 2022 - Wiley Online Library
Leiomodin is an important emerging regulator of thin filaments. As novel molecular, cellular,
animal model, and human data accumulate, the mechanisms of its action become clearer …

[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 …

A nemaline myopathy–linked mutation inhibits the actin-regulatory functions of tropomodulin and leiomodin

LE Schultz, M Colpan, GE Smith Jr… - Proceedings of the …, 2023 - National Acad Sciences
Actin is a highly expressed protein in eukaryotic cells and is essential for numerous cellular
processes. In particular, efficient striated muscle contraction is dependent upon the precise …

Exploring protein relative relations in skeletal muscle proteomic analysis for insights into insulin resistance and type 2 diabetes

A Czajkowska, M Czajkowski, L Szczerbinski… - Scientific Reports, 2024 - nature.com
The escalating prevalence of insulin resistance (IR) and type 2 diabetes mellitus (T2D)
underscores the urgent need for improved early detection techniques and effective treatment …

CAP2 is a regulator of actin pointed end dynamics and myofibrillogenesis in cardiac muscle

M Colpan, J Iwanski, CC Gregorio - Communications Biology, 2021 - nature.com
The precise assembly of actin-based thin filaments is crucial for muscle contraction.
Dysregulation of actin dynamics at thin filament pointed ends results in skeletal and cardiac …

Lmod2 is necessary for effective skeletal muscle contraction

TM Larrinaga, GP Farman, RM Mayfield, M Yuen… - Science …, 2024 - science.org
Muscle contraction is a regulated process driven by the sliding of actin-thin filaments over
myosin-thick filaments. Lmod2 is an actin filament length regulator and essential for life …

LMOD2‐related dilated cardiomyopathy presenting in late infancy

E Lay, MS Azamian, SW Denfield… - American Journal of …, 2022 - Wiley Online Library
Abstract Leiomodin‐2 (LMOD2) is an important regulator of the thin filament length, known to
promote elongation of actin through polymerization at pointed ends. Mice with Lmod2 …

Recessive TMOD1 mutation causes childhood cardiomyopathy

C Vasilescu, M Colpan, TH Ojala, T Manninen… - Communications …, 2024 - nature.com
Familial cardiomyopathy in pediatric stages is a poorly understood presentation of heart
disease in children that is attributed to pathogenic mutations. Through exome sequencing …

[HTML][HTML] Mutual dependence between tropomodulin and tropomyosin in the regulation of sarcomeric actin assembly in Caenorhabditis elegans striated muscle

S Ono, M Lewis, K Ono - European journal of cell biology, 2022 - Elsevier
Tropomodulin and tropomyosin are important components of sarcomeric thin filaments in
striated muscles. Tropomyosin decorates the side of actin filaments and enhances …