• USA Home
  • C8736 - Anti-Cofilin antibody produced in rabbit

C8736 Sigma-Aldrich

Anti-Cofilin antibody produced in rabbit

IgG fraction of antiserum, buffered aqueous solution



Related Categories Alphabetical Index, Antibodies, Antibodies for Cell Biology, Antibodies to Actin-associated Proteins/Myosin, Antibodies to Cell and Organelle Proteins,
conjugate   unconjugated
clone   polyclonal
biological source   rabbit
application(s)   indirect immunofluorescence: 1:1,000 using using mouse NIH/3T3 fibroblasts
  microarray: suitable
  western blot: 1:10,000 using using whole extracts of human A-431, rat PC-12, mouse NIH/3T3, and dog MDCK kidney cells
species reactivity   canine, rat, human, mouse
mol wt   antigen ~19 kDa
form   buffered aqueous solution
shipped in   dry ice
storage temp.   −20°C
antibody form   IgG fraction of antiserum
Quality Level   200
antibody product type   primary antibodies
UniProt accession no.   P23528
Gene Information   human ... CFL1(1072), CFL2(1073)
mouse ... Cfl1(12631), Cfl2(12632)
rat ... Cfl1(29271), Cfl2(366624)


General description

Cofilin is a member of the actin depolymerizing factor/cofilin family. Among all members, cofilin-1 is the predominant isoform. It is located on human chromosome 11q13.

Cofilin is a small phosphoinositide-sensitive actin-binding protein capable of depolymerizing actin-filaments in vitro. In mammals it has two isoforms: non-muscle (NM-CF, CF-L1) and muscle (M-CF, CF-L2). The protein is ubiquitiously present in tissues of eukaryotes and is especially abundant in neuronal tissues. It can shuttle between the cytoplasm and the nucleus in response to various stresses or signals, and may translocate from the cytoplasm to the plasma membrane in various cells.


Reacts with muscle and non-muscle cofilin.


Synthetic peptide corresponding to human cofilin sequence, with N-terminal cysteine added, conjugated to KLH. The corresponding sequence is identical in pig and rat non-muscle cofilin and differs by three amino acids from that of human and chicken muscle cofilin.


Anti-Cofilin antibody has been used:
• for immunostaining of chick neurons. It is used as a primary antibody
• for western blotting of protein isolated from mouse hippocampi cells, rat brain samples, human acute lymphoblastic T-cell line, human brain samples, head and neck squamous cell carcinoma cell line, HEK293T cells and renal epithelial cell lines
• for immunofluorescence studies in tissue samples from human brain

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.

Storage and Stability

For continuous use, store at 2-8 °C for up to one month. For prolonged storage, freeze in working aliquots at -20 °C. Repeated freezing and thawing, or storage in frost-free freezers, is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilutions should be discarded if not used within 12 hours.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Biochem/physiol Actions

Cofilin binds stoichiometrically to monomeric G-actin and actin protomers. Cofilin intercalates between longitudinally associated actin monomers within the filament. Under specific conditions, It cleaves the filaments and accelerates actin subunits dissociation from their ‘pointed′ ends. It is essential for viability and vital for many cellular processes involving actin remodeling, such as motility at the leading edge of cells, polarized cell growth, endocytosis, phagocytosis, cellular activation, cytokinesis etc. Cofilin activity is regulated through reversible phosphorylation and dephosphorylation. In phosphorylated form, it is inactive and unable to bond with actin. Phosphorylation of cofilin is regulated by at least four protein kinases: LIM Kinase-1, LIM Kinase-2, Testicular Kinase-1, and Testicular Kinase-2. S-nitrosylation of cofilin is involved in vascular endothelial growth factor (VEGF)-stimulated endothelial cytoskeleton remodeling and migration. Over-expression of cofilin suppresses growth and invasion of non-small cell lung cancer. Dysregulation of cofilin is associated with neurodegeneration.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy


Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detection methods, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

Related Content

Antibody Explorer | Buy Primary Antibodies & Secondary Antibodies

Primary, Secondary and Recombinant Monoclonal Antibodies Providing highly cited primary and secondary antibodies, we have you covered for your ELISA, western blot, immunohistochemistry or other assay...
Keywords: Alzheimer Disease, Cancer, Chromatin immunoprecipitation, Diagnostic, Enzyme-linked immunosorbent assay, Flow cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Neuroscience, Western blot

Peer-Reviewed Papers


Related Products

related product

Product #


Add to Cart

C8992 Anti-phospho-Cofilin (pSer3) antibody produced in rabbit, IgG fraction of antiserum, buffered aqueous solution

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?