Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG. Hevea brasiliensis (taxid: 3981)
Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG.
Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG.
Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG.
Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG.
Hevea brasiliensis (taxid: 3981)
>sp|Q9XF38|PROF_PYRCO Profilin OS=Pyrus communis PE=1 SV=1
Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG.
Pyrus communis (taxid: 23211)
>sp|O82572|PROF1_RICCO Profilin-1 OS=Ricinus communis GN=PRO1 PE=2 SV=1
Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG.
Ricinus communis (taxid: 3988)
>sp|Q84V37|PROF_CHEAL Profilin OS=Chenopodium album PE=1 SV=1
Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG.
Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG.
Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations. By binding to PIP2, it inhibits the formation of IP3 and DG.
Oryza sativa subsp. indica (taxid: 39946)
Close Homologs in the Non-Redundant Database Detected by BLAST
>gi|14423860|sp|Q9M7N0.1|PROF3_HEVBR RecName: Full=Profilin-3; AltName: Full=Pollen allergen Hev b 8.0201; AltName: Allergen=Hev b 8.0201 gi|6979167|gb|AAF34341.1|AF119365_1 latex profilin Hev b 8 [Hevea brasiliensis]
>gi|14423858|sp|Q9M7M8.1|PROF5_HEVBR RecName: Full=Profilin-5; AltName: Full=Pollen allergen Hev b 8.0203; AltName: Allergen=Hev b 8.0203 gi|6979171|gb|AAF34343.1|AF119367_1 latex profilin Hev b 8 [Hevea brasiliensis]
>gi|14423859|sp|Q9M7M9.1|PROF4_HEVBR RecName: Full=Profilin-4; AltName: Full=Pollen allergen Hev b 8.0202; AltName: Allergen=Hev b 8.0202 gi|6979169|gb|AAF34342.1|AF119366_1 latex profilin Hev b 8 [Hevea brasiliensis]
Profilin can inhibit actin polymerization into F-actin by binding to monomeric actin (G-actin) and terminal F-actin subunits, but - as a regulator of the cytoskeleton - it may also promote actin polymerization. It plays a role in the assembly of branched actin filament networks, by activating WASP via binding to WASP's proline rich domain. Profilin may link the cytoskeleton with major signalling pathways by interacting with components of the phosphatidylinositol cycle and Ras pathway. Length = 127
Profilin can inhibit actin polymerization into F-actin by binding to monomeric actin (G-actin) and terminal F-actin subunits, but - as a regulator of the cytoskeleton - it may also promote actin polymerization. It plays a role in the assembly of branched actin filament networks, by activating WASP via binding to WASP's proline rich domain. Profilin may link the cytoskeleton with major signalling pathways by interacting with components of the phosphatidylinositol cycle and Ras pathway.
>PF00235 Profilin: Profilin; InterPro: IPR002097 Profilin is a small eukaryotic protein that binds to monomeric actin (G-actin) in a 1:1 ratio thus preventing the polymerisation of actin into filaments (F-actin)
It can also in certain circumstance promote actin polymerisation. Profilin also binds to polyphosphoinositides such as PIP2. Overall sequence similarity among profilin from organisms which belong to different phyla (ranging from fungi to mammals) is low, but the N-terminal region is relatively well conserved. That region is thought to be involved in the binding to actin. A protein structurally similar to profilin is present in the genome of Variola virus and Vaccinia virus (gene A42R). Some of the proteins in this family are allergens. Allergies are hypersensitivity reactions of the immune system to specific substances called allergens (such as pollen, stings, drugs, or food) that, in most people, result in no symptoms. A nomenclature system has been established for antigens (allergens) that cause IgE-mediated atopic allergies in humans [WHO/IUIS Allergen Nomenclature Subcommittee King T.P., Hoffmann D., Loewenstein H., Marsh D.G., Platts-Mills T.A.E., Thomas W. Bull. World Health Organ. 72:797-806(1994)]. This nomenclature system is defined by a designation that is composed of the first three letters of the genus; a space; the first letter of the species name; a space and an arabic number. In the event that two species names have identical designations, they are discriminated from one another by adding one or more letters (as necessary) to each species designation. The allergens in this family include allergens with the following designations: Ara t 8, Bet v 2, Cyn d 12, Hel a 2, Mer a 1 and Phl p 11.; GO: 0003779 actin binding, 0007010 cytoskeleton organization, 0015629 actin cytoskeleton; PDB: 1ACF_A 3NEC_C 2V8F_B 2V8C_A 2VK3_A 2JKF_A 2JKG_A 1F2K_B 2ACG_A 1YPR_B ....
>3leq_A Uncharacterized protein CVNB5; PSI, MCSG, structural genomics, midwest center for structura genomics, protein structure initiative; 1.85A {Streptomyces avermitilis}