Actin-2

UniProtKB accession:  Q4YU79

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UniProtKB description:  Actin is a highly conserved protein that polymerizes to produce filaments that form cross-linked networks in the cytoplasm (PubMed:24743229, PubMed:31199804). Polymerizes into longer and more stable actin filaments compared to ACT1/actin-1 (PubMed:24743229). Has ATPase activity (PubMed:24743229, PubMed:31199804). ATP hydrolysis leads to the formation of a stable intermediate ADP-inorganic phosphate (Pi) actin, which is followed by the release of Pi (Probable). ATP hydrolysis affects filament stability; ADP-bound actin depolymerizes much faster than ATP- or ADP-Pi-bound actin (Probable). Plays an essential role in male gametocyte development in the mosquito midgut, functioning in several processes including male gametocyte egress from host erythrocytes, formation of a beating flagellum and relocalization of ACT1/actin-1 to the cytoplasm (PubMed:21790945, PubMed:24743229). On the basal side of the mosquito midgut epithelium, required for the development of ookinetes into sporogonic oocysts (PubMed:24471657).