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Microfilament

Definition

noun, plural: microfilaments

A thin, helical, single-stranded filament of the cytoskeleton found in the cytoplasm of eukaryotic cells, composed of actin subunits, and functions primarily in maintaining the structural integrity of a cell and cell movements.


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Additionally, the microfilament:


Word origin: Gk: comb. form repr. mīkrós, small + NL fīlāmentum, equiv. to LL fīlā(re), to wind thread, spin.

Related forms: microfilamentous (adjective).


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microfilaments and microtubules

which of the following apply to microtubules, which to microfilaments and which to both? 1. all the nucleotide-binding sites point the same direction 2. monomers bind GTP 3. dimers polymerize into protofilaments that they associate side by side 4. structure ...

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by nickname
Fri Oct 01, 2010 9:34 pm
 
Forum: Molecular Biology
Topic: microfilaments and microtubules
Replies: 0
Views: 5502

Latrunculin A and cytokine treatment in the same time

... assay) with cytokine for a certain receptor and asses the signaling level in time, +/- Latrunculin A (a cell permeable marine toxin that disrupts microfilament organization by formation of a 1:1 complex with monomeric G-actin). As I believe there is an involvement of the actin in the signaling ...

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by roxanalibe
Tue Jul 13, 2010 9:16 am
 
Forum: Molecular Biology
Topic: Latrunculin A and cytokine treatment in the same time
Replies: 2
Views: 1828

Confusing Information in my Book

... Second, The structural filament most actively involved in movement of molecules and organelles within the cell is the: intermediate filament, microfilament, microtubules, or all participate equally. I am unsure about this one because my book implies that all participate, but it does not imply ...

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by SCGirl
Sun Jan 28, 2007 7:23 pm
 
Forum: Cell Biology
Topic: Confusing Information in my Book
Replies: 6
Views: 2925

The Fiber Disease

... I.J. Su. 1978 - Actin filaments in paramyxovirus-infected human fibroblasts studied by indirect immunofluorescence. PMID: 356824 1983 - Fate of microfilaments in vero cells infected with measles virus and herpes simplex virus type 1. PMID: 6343843 1985 - Interaction of frog virus 3 with the ...

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by Skytroll
Mon Jul 10, 2006 5:53 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5478253

ineternal skeleton

You mean by cytoskeleton? well, it consists of microtubule, microfilament and intermediate filamen...

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by victor
Mon Jan 09, 2006 5:59 am
 
Forum: Cell Biology
Topic: ineternal skeleton
Replies: 7
Views: 3641
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