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Actin filaments

Actin filament

One of the contractile elements in muscular fibres and other cells; in skeletal muscle, the actin filaments are about 5 nm wide and 100 um long, and attach to the transverse Z filaments.


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How does phospholipids aid the cell and the rest of the body

... to the extracellular matrix) are attached on the cytoplasmic side with actin filaments. I'm not quite sure if integrin-like binding to actin is prevalent for all the proteins ...

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by Adz795
Thu Sep 15, 2011 7:25 am
 
Forum: Molecular Biology
Topic: How does phospholipids aid the cell and the rest of the body
Replies: 7
Views: 7967

Re: Muscle Contractions

... to stimulate contraction (second messenger). The myosin fibers (on actin) are blocked by tropomyosin which is anchored by troponin. Ca2+ binds ... of this ADP and phosphate powers a stroke between the myosin and actin filaments causing a pass of the long to shortened sacromere. ADP is released ...

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by Jpoley
Tue Mar 01, 2011 2:42 am
 
Forum: Human Biology
Topic: Muscle Contractions
Replies: 1
Views: 6655

Activation of myosin?

... this: Every muscle contraction involved the interaction of myosin and actin filaments. This interaction can occur only after myosin has been activated. Describe the activation ...

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by Vangeek
Wed Feb 11, 2009 5:10 am
 
Forum: Cell Biology
Topic: Activation of myosin?
Replies: 2
Views: 3896

Lipid Trafficking

... is formed is an active process. At least the TCR movement is guided by actin filaments, maybe also by microtubules. Oh, and even though I talk about MHC:TCR complexes, ...

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by biohazard
Tue Dec 09, 2008 8:01 am
 
Forum: Cell Biology
Topic: Lipid Trafficking
Replies: 6
Views: 4643

Actin filiments role in ameoboid movement

when it is in a gel the actin filaments are randomly oriented, creating a disordered network. When it forms filaments they are ordered, ...

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by MrMistery
Tue Oct 07, 2008 7:38 pm
 
Forum: Microbiology
Topic: Actin filiments role in ameoboid movement
Replies: 6
Views: 5753
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