Promotes the exchange of Ras-bound GDP by GTP. 1253 SDC25 MSCTASYAGMTTPVKDKEGHGIPCLQPIDVVECTYQYFTKSRNKLSLRVGDLIYVLTKGSNGWWDGVLIRHSANNNNNNSLILDRGWFPPSFTRSILNELHGVPDIGNELEIFQAGLNLKLELSSNPVILSLEDFLDCCRDIEFKEQLAWSPTPVHERKGCCELLYYNQDLDVYCRTLPYLPQNQVETVNDYSSFPAISKIAGKKMPITSSPDLFYLNDCDVVYWYDLTRLVCHYVNLTERDLLANEREKFLTSLDLLTAQITYVYMLFRNLRLVEDSFKKTLKKLIYTLSRFSINANIWFHSTSFEEREAIASQKDPERRSPLLQSILGTFQKFHFLLRLLHFLSNPNELTILPQLTPRFFKDSFNTISWNNPFLRTVFNQHMSMTLPRQMIKAVAGASGIVAENIDEIPASKQGTFISSETSHHSPSAPFQRRRRGTIFSNVSGSSDESDTIWSKRKKPYPLNEETLSLVRARKKQLDGKLKQMIKSANEYLSNTANFSKMLNFEMNFKTYEEVSGTIPIIDILENLDLTIFLNLRELGDENRVFDEDVAIGDEDKEFLKHSLSSLSYILSDYFNMKQYFHDVVVKFIIVAQHLTLEDPFVFSPMQNDLPTGYYEPMKPSSLNLDNAKDKKNGSQNTDIQEEEDEYEPDPDSLILFHNLINQDSDFNDLKFFNLAHVFKKSCDDYFDVLKLAIEFVNQLILERENLLNYAARMMKNNITELLLRGEEGYGSYDGGETAEKSDTNAVYADSDTKDNDEWRDSQVKLPRYLQREYDSELIWGPIVRIKGGSKHALISYLTDNEKKDLFFNITFLITFRSIFTTTEFLSYLISQYNLDPPEDLCFEEYNEWVTKKLIPVKCRVVEIMTTFFKQYWFPGYDEPDLATLNLDYFAQVAIKENITGSVELLKEVNQKFKLGNIQEATAPMKTLDQQICQDHYSGTLYSTTESILAVDPVLFATQLTILEHEIYCEITIFDCLQKIWKNKYTKSYGASPGLNEFISFANKLTNFISYSVVKEADKSKRAKLLSHFIFIAEYCRKFNNFSSMTAIISALYSSPIYRLEKTWQAVIPQTRDLLQSLNKLMDPKKNFINYRNELKSLHSAPCVPFFGVYLSDLTFTDSGNPDYLVLEHGLKGVHDEKKYINFNKRSRLVDILQEIIYFKKTHYDFTKDRTVIECISNSLENIPHIEKQYQLSLIIEPKPRKKVVPNSNSNNKSQEKSRDDQTDEGKTSTKKDRFPKFQLHKTKKKAPKVSK SCD25 Guanine nucleotide exchange factor SDC25 SDC25_YEASX