doi: 10.1007/BF00818257.
A possible mechanism of length activation in insect fibrillar flight muscle
- PMID: 6237118
- DOI: 10.1007/BF00818257
Item in Clipboard
A possible mechanism of length activation in insect fibrillar flight muscle
J Muscle Res Cell Motil.
1984 Aug.
Abstract
When insect fibrillar flight muscle is stretched it becomes more active, as indicated by an increase in oscillatory work output and ATPase activity. Using glycerol-extracted muscle it is demonstrated that this effect is periodic with a repeat of around 3% length change, independent of temperature and ionic strength. This corresponds to 38 nm per half sarcomere, the same repeat as the actin helix. Since there is also a period of 38 nm in the myosin helix the periodic change of activity with muscle length could be caused by filament sliding. This may be the basis of the mechanism of length activation.
Similar articles
-
Interplay between passive tension and strong and weak binding cross-bridges in insect indirect flight muscle. A functional dissection by gelsolin-mediated thin filament removal.J Gen Physiol. 1993 Feb;101(2):235-70. doi: 10.1085/jgp.101.2.235. J Gen Physiol. 1993. PMID: 7681097 Free PMC article.
-
Cross-bridge interaction with oppositely polarized actin filaments in double-overlap zones of insect flight muscle.Nature. 1984 May 10-16;309(5964):168-70. doi: 10.1038/309168a0. Nature. 1984. PMID: 6717596
-
Optimal design of vertebrate and insect sarcomeres.J Morphol. 1987 Jan;191(1):49-62. doi: 10.1002/jmor.1051910106. J Morphol. 1987. PMID: 3820311
-
Spontaneous oscillatory contraction (SPOC) of sarcomeres in skeletal muscle.Adv Biophys. 1991;27:227-35. doi: 10.1016/0065-227x(91)90022-6. Adv Biophys. 1991. PMID: 1755363 Review.
-
A periodic cytoskeletal lattice in striated muscle.Cell Muscle Motil. 1985;6:287-313. doi: 10.1007/978-1-4757-4723-2_9. Cell Muscle Motil. 1985. PMID: 3888376 Review.
Cited by
-
Spontaneous oscillatory contraction of sarcomeres in skeletal myofibrils.J Muscle Res Cell Motil. 1988 Apr;9(2):111-9. doi: 10.1007/BF01773733. J Muscle Res Cell Motil. 1988. PMID: 3138284
-
Oblique section 3-D reconstruction of relaxed insect flight muscle reveals the cross-bridge lattice in helical registration.Biophys J. 1994 Oct;67(4):1620-33. doi: 10.1016/S0006-3495(94)80635-6. Biophys J. 1994. PMID: 7819494 Free PMC article.
-
Quantitative model for Schädler's isometric oscillations in insect flight and cardiac muscle.J Muscle Res Cell Motil. 1991 Oct;12(5):455-65. doi: 10.1007/BF01738330. J Muscle Res Cell Motil. 1991. PMID: 1939609
-
Invertebrate muscles: thin and thick filament structure; molecular basis of contraction and its regulation, catch and asynchronous muscle.Prog Neurobiol. 2008 Oct;86(2):72-127. doi: 10.1016/j.pneurobio.2008.06.004. Epub 2008 Jun 20. Prog Neurobiol. 2008. PMID: 18616971 Free PMC article. Review.
-
Insights into Actin-Myosin Interactions within Muscle from 3D Electron Microscopy.Int J Mol Sci. 2019 Apr 5;20(7):1703. doi: 10.3390/ijms20071703. Int J Mol Sci. 2019. PMID: 30959804 Free PMC article. Review.