Function
Acts as an inhibitor of the small GTPase RHOA and plays several roles in the regulation of myoblast and hair cell differentiation, lymphocyte T proliferation and neutrophil polarization (PubMed:25588844, PubMed:27269051). Plays a role in fetal mononuclear myoblast differentiation by promoting filopodia and myotube formation (PubMed:17150207). Maintains naive T lymphocytes in a quiescent state and prevents chemokine-induced T lymphocyte responses, such as cell adhesion, polarization and migration (By similarity). Involved also in the regulation of neutrophil polarization, chemotaxis and adhesion (PubMed:25588844). Required for normal development of inner and outer hair cell stereocilia within the cochlea of the inner ear (PubMed:27269051). Plays a role for maintaining the structural organization of the basal domain of stereocilia (PubMed:27269051). Involved in mechanosensory hair cell function (PubMed:27269051). Required for normal hearing (PubMed:27269051).
Sequence
MPPGTKRLRALGAFSAGLPTRLPEIMLVGSQSFSPGGPNGIIRSQSFAGFSGLQERRSRCNSFIENASALKKPQAKLKKMHNLGHKNNNTPKEPQPKRVEEVYRALKNGLDEYLEFHQTELDKLTAQLKDMKRNSRLGVLYDLDKQIKTIERYMRRLEFHISKVDELYEAYCIQRRLQDGASKMKQAFATSPASKAARESLSEINRSYKEYTENMCAIEAELESLLGEFSIKMKGLAGFARLCPGDQYEIFMKYGRQRWKLKGKIEVNGKQSWDGAETVFLPLIVGFISIKVTELKGLATHILVGSVTCETKELFAARPQVVAVDINDLGTIKLNLEITWYPFDVEDTTPSSGPGNKTAALQRRMSMYSQGTPETPTFKDQSFFRWLRLSVLSALRDTFFATLHHNHSVGDLPSLSLNPKALLEFYSNLPDDIFESGKAAEEKRPLSLSFSDLQDGDCVFTSSSATSPSSSHSAHPEITITPAELTHSSLSSQNEGTEDSSSASSRNSLGEDHEPKSHPKSDTVEPGKPGVATRSGTESLFLESSVAEALLQESDEASELKPVELDTFEGNITKQLVKRLTSAEGPVTTDKLFFEGSVGSESEAGRSFLDGSLEDAFNGLFLALDPHKKQYKEFQDLNQEVTHLDDVLKCKPAGSRSRSSSLSLTVESALESFDFLNTSDFDEEEEDGDDVCHVGGGADSVFSDTETEKSGYRSVHPEARGHLSEALTEDTGVGTSVAGSPLPLTTGNESLDITIVKHLQYCTQLIQQIVFSSKTPFVARSLLEKLSRQVLVMQKLAAVSDENLGNITSVVEAIPEFHKKLSLLAFWTKCCSPSGVYHSSAARLIKQLEASFARSINKDYPGLAEPVFRTLVSQILDRAEPLLSSSLSSEVITVFQYYSFFTSHGVSDLETYLGQLTRQVAMVQTLQSLRDEKLLQTMSDLAPSNLPAQQEVLRTLALLLTRDDNEVSEAVTLYLAAASKNEHFREKALLYYCEALTKANLQLQKAACLALKSLEATESIKMLVTLCQSDTEEIRTVASETLLSLGEDGRLAYEQLDKFPRDCVKVGGRHGTEVATAF