| UniProt functional annotation for P68139 | |||
| UniProt codes: P68139, P02568. |
| Organism: | Gallus gallus (Chicken). | |
| Taxonomy: | Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda; Coelurosauria; Aves; Neognathae; Galloanserae; Galliformes; Phasianidae; Phasianinae; Gallus. | |
| Function: | Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells. | |
| Subunit: | Polymerization of globular actin (G-actin) leads to a structural filament (F-actin) in the form of a two-stranded helix. Each actin can bind to 4 others. {ECO:0000269|PubMed:12356759}. | |
| Subcellular location: | Cytoplasm, cytoskeleton. | |
| Ptm: | Oxidation of Met-46 and Met-49 by MICALs (MICAL1, MICAL2 or MICAL3) to form methionine sulfoxide promotes actin filament depolymerization. MICAL1 and MICAL2 produce the (R)-S-oxide form. The (R)-S-oxide form is reverted by MSRB1 and MSRB2, which promotes actin repolymerization. {ECO:0000250|UniProtKB:P68134}. | |
| Ptm: | Monomethylation at Lys-86 (K84me1) regulates actin-myosin interaction and actomyosin-dependent processes. Demethylation by ALKBH4 is required for maintaining actomyosin dynamics supporting normal cleavage furrow ingression during cytokinesis and cell migration. {ECO:0000250|UniProtKB:P68133}. | |
| Ptm: | Methylated at His-75 by SETD3. {ECO:0000250|UniProtKB:P68133}. | |
| Miscellaneous: | In vertebrates 3 main groups of actin isoforms, alpha, beta and gamma have been identified. The alpha actins are found in muscle tissues and are a major constituent of the contractile apparatus. The beta and gamma actins coexist in most cell types as components of the cytoskeleton and as mediators of internal cell motility. | |
| Similarity: | Belongs to the actin family. {ECO:0000305}. | |
Annotations taken from UniProtKB at the EBI.