Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1986 Dec;7(6):527-36.
doi: 10.1007/BF01753569.

The Z-band lattice in skeletal muscle before, during and after tetanic contraction

The Z-band lattice in skeletal muscle before, during and after tetanic contraction

M A Goldstein et al. J Muscle Res Cell Motil. 1986 Dec.

Abstract

Electron micrographs and optical diffraction patterns of the Z-band were studied in rat soleus muscle fixed before, during, and after tetanic contraction. We compared the morphology (small square or basketweave pattern) and dimensions of the Z-lattice of control and tetanized muscles near rest length. Z-bands of muscle fixed at rest and of muscle allowed to rest after a tetanic contraction exhibited the small square pattern. Z-bands from muscle fixed during tetanic contraction exhibited the basketweave pattern. Concomitant with the transition to basketweave, we observed an average increase of 20% in spacing between the axial filaments of the Z-lattice. Optical diffraction measurements of the A-band d10 spacing revealed that the Z/A ratio remained constant during the transition. We have modelled the small square to basketweave transformation as resulting from a change of curvature of constant length cross-connecting Z-filaments when the axial filaments increase their separation.

PubMed Disclaimer

Comment in

References

    1. Biophys J. 1980 Apr;30(1):27-40 - PubMed
    1. J Mol Biol. 1967 Apr 14;25(1):31-45 - PubMed
    1. J Mol Biol. 1985 Sep 5;185(1):211-4 - PubMed
    1. Proc R Soc Lond B Biol Sci. 1964 Oct 27;160:449-60 - PubMed
    1. Exp Neurol. 1980 Oct;70(1):83-97 - PubMed

Publication types