>cd04177 RSR1 RSR1 subgroup. RSR1/Bud1p is a member of the Rap subfamily of the Ras family that is found in fungi. In budding yeasts, RSR1 is involved in selecting a site for bud growth on the cell cortex, which directs the establishment of cell polarization. The Rho family GTPase cdc42 and its GEF, cdc24, then establish an axis of polarized growth by organizing the actin cytoskeleton and secretory apparatus at the bud site. It is believed that cdc42 interacts directly with RSR1 in vivo. In filamentous fungi, polar growth occurs at the tips of hypha and at novel growth sites along the extending hypha. In Ashbya gossypii, RSR1 is a key regulator of hyphal growth, localizing at the tip region and regulating in apical polarization of the actin cytoskeleton. Most Ras proteins contain a lipid modification site at the C-terminus, with a typical sequence motif CaaX, where a = an aliphatic amino acid and X = any amino acid. Lipid binding is essential for membrane attachment, a key featu

Probab=97.77 E-value=0.0013 Score=44.21 Aligned_cols=82 Identities=21% Similarity=0.301 Sum_probs=51.9 Q ss_pred CEEEEEECCCCCHHHHHHHHHCCCCCCCCCCCCCCCCCCEE-EEECCCHHHHHHHHHCCCCEEEEEEEEEEECCCCCCCC Q ss_conf 24867528887888999987404898736668674488337-99768555877764218650233579998512235432 Q gi|254780226|r 3 FKCGIIGLPNVGKSTLFNALTRTASAQAANYPFCTIEPNSG-EVAVPDPRMHKLAEIAESKDLVPTRMSFVDIAGLVRGA 81 (367) Q Consensus 3 ~kiGlvG~pn~GKST~f~alT~~~~~~~~~ypFtTi~pn~g-~~~v~d~~~~~l~~~~~~~~~~p~~i~~iDvaGLv~gA 81 (367) T Consensus 2 fKivlvGd~~VGKTsli~rf~~~-~-f~~~y~-pTi~~~~~k~i~i------------~~~---~~~l~iwDtaG~e~-- 61 (168) T cd04177 2 YKIVVLGAGGVGKSALTVQFVQN-V-FIESYD-PTIEDSYRKQVEI------------DGR---QCDLEILDTAGTEQ-- 61 (168) T ss_pred EEEEEECCCCCCHHHHHHHHHHC-C-CCCCCC-CCCCCEEEEEEEE------------CCE---EEEEEEEECCCCCC-- T ss_conf 19999899997799999999619-3-898658-8333159999999------------999---99999982788623-- Q ss_pred CCCCCCHHHHHHHHHCCCEEEEEECCCC Q ss_conf 2246632899998730374788501234 Q gi|254780226|r 82 SKGEGLGNQFLAHIREVDAIIHVLRCFK 109 (367) Q Consensus 82 ~~G~GlGN~FL~~ir~aDalihVVdaf~ 109 (367) T Consensus 62 --~~~~~~~---~~~~a~~~ilvydvt~ 84 (168) T cd04177 62 --FTAMREL---YIKSGQGFLLVYSVTS 84 (168) T ss_pred --CCCCHHH---HHCCCCEEEEECCCCC T ss_conf --3345154---5126866798536898

HHsearch alignment for GI: 254780226 and conserved domain: cd04177