Scientific Background: Cofilin 1 (non-muscle), also known as CFL1, is a widely distributed intracellular actin-modulating protein that binds and depolymerizes filamentous F-actin and inhibits the polymerization of monomeric G-actin in a pH-dependent manner (1). It is involved in the translocation of actin-cofilin complex from cytoplasm to nucleus (2). CFL1 processed proteins are most probably produced by HIV-1 protease digestion.
2.Samstag, Y. Et al: Iteraction of cofilin with the serine phosphatases PP1 and PP2A in normal and neoplastic human T lymphocytes.". Adv. Enzyme Regul. 2004;97 -211.
NCBI and Uniprot Product Information
NCBI Description
The protein encoded by this gene can polymerize and depolymerize F-actin and G-actin in a pH-dependent manner. Increased phosphorylation of this protein by LIM kinase aids in Rho-induced reorganization of the actin cytoskeleton. Cofilin is a widely distributed intracellular actin-modulating protein that binds and depolymerizes filamentous F-actin and inhibits the polymerization of monomeric G-actin in a pH-dependent manner. It is involved in the translocation of actin-cofilin complex from cytoplasm to nucleus.[supplied by OMIM, Apr 2004]
Uniprot Description
Function: Binds to F-actin and exhibits pH-sensitive F-actin depolymerizing activity. Regulates actin cytoskeleton dynamics. Important for normal progress through mitosis and normal cytokinesis. Plays a role in the regulation of cell morphology and cytoskeletal organization. Ref.14 Ref.23
Subunit structure: Can bind G- and F-actin in a 1:1 ratio of cofilin to actin. It is a major component of intranuclear and cytoplasmic actin rods.
Subcellular location: Nucleus matrix. Cytoplasm › cytoskeleton. Cell projection › ruffle membrane; Peripheral membrane protein; Cytoplasmic side. Cell projection › lamellipodium membrane; Peripheral membrane protein; Cytoplasmic side. Note: Colocalizes with the actin cytoskeleton in membrane ruffles and lamellipodia. Detected at the cleavage furrow and contractile ring during cytokinesis. Almost completely in nucleus in cells exposed to heat shock or 10% dimethyl sulfoxide. Ref.14
Tissue specificity: Widely distributed in various tissues.
Induction: Up-regulated in response to enterovirus 71 (EV71) infection (at protein level). Ref.16
Post-translational modification: Inactivated by phosphorylation on Ser-3. Phosphorylated on Ser-3 in resting cells
By similarity. Dephosphorylated by PDXP/chronophin; this restores its activity in promoting actin filament depolymerization. The phosphorylation of Ser-24 may prevent recognition of the nuclear localization signal
By similarity. Ref.12 Ref.14
Sequence similarities: Belongs to the actin-binding proteins ADF family.Contains 1 ADF-H domain.
Research Articles on CFL1
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Product Notes
The CFL1 cfl1 (Catalog #AAA515367) is a Recombinant Protein produced from E Coli and is intended for research purposes only. The product is available for immediate purchase. The tag for this protein is His tag!!Expression System||E.coli!!Source Note||Recombinant full-length human Cofilin 1 was expressed in E. coli cells. AAA Biotech's Cofilin 1 can be used in a range of immunoassay formats including, but not limited to, Western Blot (WB). Researchers should empirically determine the suitability of the CFL1 cfl1 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. It is sometimes possible for the material contained within the vial of "Cofilin 1, Recombinant Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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