scholarly journals Force relaxation, labile heat and parvalbumin content of skeletal muscle fibres of Xenopus laevis.

1993 ◽  
Vol 463 (1) ◽  
pp. 123-140 ◽  
Author(s):  
J Lännergren ◽  
G Elzinga ◽  
G J Stienen
1984 ◽  
Vol 222 (1228) ◽  
pp. 401-408 ◽  

An analysis has been performed of the native myosin isoenzyme com position of isolated skeletal muscle fibres from Xenopus laevis with welldefined isotonic contraction properties. Fast twitch ‘ white ’ (type 1) fibres contained three isomyosins; fast twitch ‘red ’ (type 2) fibres showed two major myosin bands with migration velocities very similar to those of the two slower bands in type 1. Slow twitch (type 3) fibres yielded a single, slowly migrating band as did slow tonic (type 5) fibres, whereas the myosin from type 4 (very slow twitch, ‘intermediate’) fibres migrated with a somewhat higher mobility. The results suggest that amphibian skeletal muscle may possess the principal fibre types found in mammals and birds.


1989 ◽  
Vol 504 (2) ◽  
pp. 306-310 ◽  
Author(s):  
Inger Nennesmo ◽  
Tomas Olsson ◽  
Åke Ljungdahl ◽  
Krister Kristensson ◽  
Peter H. Van der Meide

2006 ◽  
Vol 99 (2-3) ◽  
pp. 1
Author(s):  
Fabio Ruzzier ◽  
Elena Bandi ◽  
Mihaela Jurdana ◽  
Paola Lorenzon ◽  
Marina Sciancalepore

1953 ◽  
Vol 121 (2) ◽  
pp. 318-340 ◽  
Author(s):  
Stephen W. Kuffler ◽  
E. M. Vaughan Williams

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