microfilament


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microfilament

 [mi″kro-fil´ah-ment]
any of the submicroscopic filaments, composed chiefly of actin, found in the cytoplasmic matrix of almost all cells, often in close association with the microtubules.

mi·cro·fil·a·ment

(mī'krō-fil'ă-ment),
The finest filamentous element of the cytoskeleton, having a diameter of about 5 nm and consisting primarily of actin.
See also: actin filament.

microfilament

(mī′krō-fĭl′ə-mənt)
n.
Any of the actin-containing filaments that are found in the cytoplasm of eukaryotic cells and are involved in generating cell movement, providing structural support, and organizing internal cell components. Microfilaments, along with intermediate filaments and microtubules, make up a cell's cytoskeleton.

mi′cro·fil′a·men′tous (-mĕn′təs) adj.

microfilament

Any of a group of elongated, 5–7 nm in diameter, cytoplasmic fibres composed predominantly of actin, which form a cytoskeletal latticework.

mi·cro·fil·a·ment

(mī'krō-fil'ă-mĕnt)
The finest filamentous element of the cytoskeleton, having a diameter of about 5 nm and consisting primarily of actin.
See also: actin filament

microfilament

a fine, subcellular structure about 5–8 nm in diameter, composed of ACTIN or a similar protein and found in the cytoplasm of EUKARYOTE cells. Microfilaments are able to contract and are also involved in CYTOPLASMIC STREAMING and PHAGOCYTOSIS.
References in periodicals archive ?
Therefore, we visualized two major cytoskeletal subsystems of EA.hy926 cells, the microtubules and microfilaments, using antitubulin antibodies and F-actin-specific reagent phalloidin, respectively.
The present findings extend previous observations by providing more direct evidence that DBP-induced germ cell aggregation results from dissolution of Sertoli-germ cell membrane cross-linking (via espin-APC), which in turn may result from the redistribution of microfilaments, such as vimentin and N-cadherin.
Figure 2a and c displays the transverse cross-sectional areas of the oriented nanocomposites, i.e., also the cross-section of the original microfilaments. The nanomodifiers are primarily normal to the viewed plane, which shows a preferred orientation in the direction of flow (also normal to the viewing plane).
Ultrastructural changes occurred prior to massive proteinuria, including diffuse podocyte foot process effacement, swelling of the mitochondria, and disarrangement of microfilaments. YQQRG attenuated these pathological changes, exhibiting a protective effect on GFB structure, an effect equivalent to that of fosinopril.
Cellular structures such as microtubules and microfilaments are involved in vital functions such as motility, secretion, and mitosis.
That component is the microfilament, a series of filaments made up of inter-woven strands of two proteins, actin and tropomyosin.
By contrast, another small GTPase, RhoA inhibitor caused abnormal organization of microfilaments, failure of spindle rotation and PB2 extrusion, suggesting its role in regulating spindle rotation through regulating microfilament organization (Zhong et al., 2005).
The MUwaffle is woven from high-tech microfilament fabric that is designed to absorb more liquid and dry faster than regular towels.
PowerPro 5-pound Microfilament Line is perfect for 1/8- to 1/32-ounce jigs, small stickbaits, spoons, and other diminutive presentations.
"PowerPro is a microfilament line, making it absolutely the most sensitive fishing line available," Guilbault says.
The effects of microtubule and microfilament disrupting agents on cytoskeletal arrays and wall deposition in developing cotton fibers.