Organism
Shigella flexneri
Function
Rapidly associates with the first 265 amino acids of vinculin after bacteria-cell contact. This interaction is critical for efficient Shigella uptake. IpaA acts as a potent activator of vinculin and increase its ability to interact with F-actin. The complex IpaA-vinculin induces F-actin depolymerization along with the occasional formation of actin filament bundles.
Similarity
Belongs to the SipA/IpaA family.
Sequence
MHNVNNTQAPTFLYKATSPSSTEYSELKSKISDIHSSQTSLKTPASVSEKENFATSFNQKCLDFLFSSSGKEDVLRSIYSNSMNAYAKSEILEFSNVLYSLVHQNGLNFENEKGLQKIVAQYSELIIKDKLSQDSAFGPWSAKNKKLHQLRQNIEHRLALLAQQHTSGEALSLGQKLLNTEVSSFIKNNILAELKLSNETVSSLKLDDLVDAQAKLAFDSLRNQRKNTIDSKGFGIGKLSRDLNTVAVFPELLRKVLNDILEDIKDSHPIQDGLPTPPEDMPDGGPTPGANEKTSQPVIHYHINNDNRTYDNRVFDNRVYDNSYHENPENDAQSPTSQTNDLLSRNGNSLLNPQRALVQKVTSVLPHSISDTVQTFANNSALEKVFNHTPDNSDGIGSDLLTTSSQERSANNSLSRGHRPLNIQNSSTTPPLHPEGVTSSNDNSSDTTKSSASLSHRVASQINKFNSNTDSKVLQTDFLSRNGDTYLTRETIFEASKKVTNSLSNLISLIGTKSGTQERELQEKSKDITKSTTEHRINNKLKVTDANIRNYVTETNADTIDKNHAIYEKAKEVSSALSKVLSKIDDTSAELLTDDISDLKNNNDITAENNNIYKAAKDVTTSLSKVLKNINKD