Description_x000D_ General description_x000D_ Profilins are actin-monomer-binding proteins, abundantly expressed in all eukaryotic cells from yeast to mammals. Profilin 2 (PFN2) is the neuronal specific isoform. It is an actin-binding protein and is a member of the small G-actin-binding class of protein._x000D_ Immunogen_x000D_ synthetic peptide corresponding to amion acid residues 128-140 of human profilin 2 conjugated to KLH. The corresponding sequence is identical in mouse and rat._x000D_ Application_x000D_ Anti-Profilin 2 (C-terminal) antibody produced in rabbit has been used in immunostaining and immunoblotting._x000D_ Physical form_x000D_ Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide._x000D_ Disclaimer_x000D_ 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._x000D_ Biochem/physiol Actions_x000D_ Profilins are key regulators of actin dynamics. Profilin 2 (PFN2) associates with a number of proteins involved in membrane trafficking and endocytosis, such as synapsin and dynamin 1. It associates with dynamin 1 through the C-terminal proline-rich domain of dynamin 1 and thereby competes with the binding of SH3 ligands, such as endophilin and amphiphysin, thus interfering with the assembly of the endocytic machinery. Overexpression of profilin 2 inhibits endocytosis. Absence of profilin 2 in neurons increases endocytosis and membrane recycling. Profilin 2 is required for stimulated actin polymerization in the synapse and is involved in the regulation of synaptic vesicle exocytosis, neuronal excitability and complex behavior.