Low temperature traps myosin motors of mammalian muscle in a refractory state that prevents activation.
Journal
The Journal of general physiology
ISSN: 1540-7748
Titre abrégé: J Gen Physiol
Pays: United States
ID NLM: 2985110R
Informations de publication
Date de publication:
04 11 2019
04 11 2019
Historique:
received:
18
06
2019
accepted:
29
08
2019
pubmed:
27
9
2019
medline:
5
9
2020
entrez:
27
9
2019
Statut:
ppublish
Résumé
Myosin motors in the thick filament of resting striated (skeletal and cardiac) muscle are trapped in an OFF state, in which the motors are packed in helical tracks on the filament surface, inhibiting their interactions with actin and utilization of ATP. To investigate the structural changes induced in the thick filament of mammalian skeletal muscle by changes in temperature, we collected x-ray diffraction patterns from the fast skeletal muscle extensor digitorum longus of the mouse in the temperature range from near physiological (35°C) to 10°C, in which the maximal isometric force (
Identifiants
pubmed: 31554652
pii: jgp.201912424
doi: 10.1085/jgp.201912424
pmc: PMC6829559
doi:
Substances chimiques
Myosins
EC 3.6.4.1
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1272-1286Subventions
Organisme : Wellcome Trust
ID : 210464/Z/18/Z
Pays : United Kingdom
Organisme : Medical Research Council
ID : MR/M026655/1
Pays : United Kingdom
Organisme : Medical Research Council
ID : MR/R01700X/1
Pays : United Kingdom
Commentaires et corrections
Type : CommentIn
Type : CommentIn
Informations de copyright
© 2019 Caremani et al.
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