>cd04150 Arf1_5_like Arf1-Arf5-like subfamily. This subfamily contains Arf1, Arf2, Arf3, Arf4, Arf5, and related proteins. Arfs1-5 are soluble proteins that are crucial for assembling coat proteins during vesicle formation. Each contains an N-terminal myristoylated amphipathic helix that is folded into the protein in the GDP-bound state. GDP/GTP exchange exposes the helix, which anchors to the membrane. Following GTP hydrolysis, the helix dissociates from the membrane and folds back into the protein. A general feature of Arf1-5 signaling may be the cooperation of two Arfs at the same site. Arfs1-5 are generally considered to be interchangeable in function and location, but some specific functions have been assigned. Arf1 localizes to the early/cis-Golgi, where it is activated by GBF1 and recruits the coat protein COPI. It also localizes to the trans-Golgi network (TGN), where it is activated by BIG1/BIG2 and recruits the AP1, AP3, AP4, and GGA proteins. Humans, but not rodents

Probab=99.39 E-value=6.4e-12 Score=97.48 Aligned_cols=153 Identities=17% Similarity=0.240 Sum_probs=101.6 Q ss_pred EEEEECCCCCCHHHHHHHHHHHCCCCCCCCCCCCEECCCCHHHHHCCCEEEEEEEEEEECCEEEEEECCCCCCCCHHHHH Q ss_conf 49998546898778899999983961423220000038857798709606467999998997999972898754079999 Q gi|254780233|r 21 NIAIIAHVDHGKTTLVDELLKQSGVFRDNQRVSERVMDCNDLEKERGITILAKVTSIVWNDVRINIVDTPGHADFGGEVE 100 (624) Q Consensus 21 NiaIiaHvDhGKTTL~d~LL~~sG~~~~~~~v~~~vmD~~~~EreRGITI~a~~~~~~~~~~~iNiiDTPGH~DF~gEVe 100 (624) T Consensus 2 KililG~~~sGKTsll~~l~--~~~~~~----------~-------~pT~g~~~~~~~~~~~~l~iwD~~G~~~~r~l~~ 62 (159) T cd04150 2 RILMVGLDAAGKTTILYKLK--LGEIVT----------T-------IPTIGFNVETVEYKNISFTVWDVGGQDKIRPLWR 62 (159) T ss_pred EEEEECCCCCCHHHHHHHHH--CCCCCC----------C-------CCCCCCCEEEEEECCEEEEEEECCCCCCCCHHHH T ss_conf 99999999999899999997--299677----------5-------8968701799998989999997899721465678 Q ss_pred HHHHHHCEEEEEEECCCCC-CHHHHHHHHHHHH----CCCCEEEEEECCCCCCCCHHHHHHHHHHHHHHCCCCHHHCCHH Q ss_conf 9987421789999768788-6478999999997----2997899997543667402568999998886226730110426 Q gi|254780233|r 101 RILCMVESVVVLVDAAEGP-MPQTKFVVGKALK----IGLRPIVVVNKVDRSDARADEVINEVFDLFSALDATDAQLDFP 175 (624) Q Consensus 101 r~l~~~DgaiLvVdA~eGv-~~QT~~vl~~A~~----~~l~~IvvINKiDr~~a~~~~v~~ei~dlf~~l~a~de~ld~P 175 (624) T Consensus 63 ~Y~~~a~~iI~VvD~sd~~~~~~~~~~l~~~l~~~~~~~~pili~~NK~Dl~~~~~~~ei~~~l~l~-~~~--~--~~~~ 137 (159) T cd04150 63 HYFQNTQGLIFVVDSNDRERIGEAREELQRMLNEDELRDAVLLVFANKQDLPNAMSAAEVTDKLGLH-SLR--N--RNWY 137 (159) T ss_pred HHCCCCCEEEEEEECCCHHHHHHHHHHHHHHHCCHHHCCCEEEEEEECCCCCCCCCHHHHHHHHCHH-HHH--C--CCEE T ss_conf 6476873899999777778999999999999623533698299999756677898999999996866-663--7--9859 Q ss_pred HHHHHHHCCEECCCCCCCCCCCCHHHHHHHHCC Q ss_conf 688788659164674223348641355532102 Q gi|254780233|r 176 ILYGSGRFGWMSDSSDGSRDQGMVPLLNLIVDH 208 (624) Q Consensus 176 v~~~Sa~~G~~~~~~~~~~~~gl~~Lld~Ii~~ 208 (624) T Consensus 138 i~~~SA~tG-----------~Gv~e~f~WL~~~ 159 (159) T cd04150 138 IQATCATSG-----------DGLYEGLDWLSNN 159 (159) T ss_pred EEEEECCCC-----------CCHHHHHHHHHCC T ss_conf 998268679-----------3989999998559

HHsearch alignment for GI: 254780233 and conserved domain: cd04150