Order 56-70,91-133,155-166,201-216,221-244,255-370,372-372,375-413,465-494,502-535,539-574,579-657,663-752,754-860,959-1003,1008-1038,1042-1112,1143-1233,1287-1343,1416-1449,1457-1560,1567-1609,1617-1636,1638-1704,1723-1786,1790-1983,1989-2001,2004-2063
SEG 786-803
,1003-1020
,1123-1138
,1236-1246
,1371-1383
Function
Function in SwissProt
Guanine nucleotide exchange factor (GEF) which specifically activates small GTPase CDC42 by exchanging bound GDP for free GTP (PubMed:28028151, PubMed:22461490). During immune responses, required for interstitial dendritic cell (DC) migration by locally activating CDC42 at the leading edge membrane of DC (PubMed:22461490, PubMed:25713392). Required for CD4(+) T-cell migration in response to chemokine stimulation by promoting CDC42 activation at T cell leading edge membrane (PubMed:28028151). Is involved in NK cell cytotoxicity controlling polarization of microtubule-organizing center (MTOC), and possibly regulating CCDC88B-mediated lytic granule transport to MTOC during cell killing (By similarity).