>cd00878 Arf_Arl Arf (ADP-ribosylation factor)/Arl (Arf-like) small GTPases. Arf proteins are activators of phospholipase D isoforms. Unlike Ras proteins they lack cysteine residues at their C-termini and therefore are unlikely to be prenylated. Arfs are N-terminally myristoylated. Members of the Arf family are regulators of vesicle formation in intracellular traffic that interact reversibly with membranes of the secretory and endocytic compartments in a GTP-dependent manner. They depart from other small GTP-binding proteins by a unique structural device, interswitch toggle, that implements front-back communication from N-terminus to the nucleotide binding site. Arf-like (Arl) proteins are close relatives of the Arf, but only Arl1 has been shown to function in membrane traffic like the Arf proteins. Arl2 has an unrelated function in the folding of native tubulin, and Arl4 may function in the nucleus. Most other Arf family proteins are so far relatively poorly characterized. Thu

Probab=99.81 E-value=3.2e-19 Score=144.25 Aligned_cols=149 Identities=21% Similarity=0.238 Sum_probs=97.8 Q ss_pred EEEECCCCCCHHHHHHHHHCCCEEEECCCCCCEEEEEEEEEEECCEEEEEEECCCCHHHCCCCCCCCCCHHHHHHHHHHH Q ss_conf 99833899868899999868920210588886021278999739948999987984010123575321002345555321 Q gi|254780941|r 25 VALVGATNAGKSTLVNRFVGAKVSIVTHKVQTTRSIVRGIVSEKESQIVFLDTPGIFNAKDSYHKLMIRLSWSTIKHADI 104 (311) Q Consensus 25 VaivG~pN~GKSTL~N~l~g~~vsivS~k~~TTr~~i~gi~~~~~~qiifvDTPG~~~~~~~l~~~~~~~~~~~l~~aDi 104 (311) T Consensus 2 i~ilG~~~vGKTsll~~l~~~~~~~~~p----Tig~~~~~i~~~~~~l~iwDt~G~--------~~~~~~~~~y~~~a~~ 69 (158) T cd00878 2 ILILGLDGAGKTTILYKLKLGEVVTTIP----TIGFNVETVEYKNVSFTVWDVGGQ--------DKIRPLWKHYYENTNG 69 (158) T ss_pred EEEECCCCCCHHHHHHHHHCCCCCCCCC----EECCCEEEEEECCEEEEEEECCCC--------CCCCHHHHHHHCCCCE T ss_conf 9999999998899999995399887445----607408999848899999988997--------2214489987276877 Q ss_pred HCCCCHHHHHHHC-CHHHHHHHH----HHCCCCCEEEEEECCCHHHH---HHHHHHHHHHHCCCCCCCCCCCCCCCCCHH Q ss_conf 0011000010000-000122345----44287202578721101043---457888864100123343110001387426 Q gi|254780941|r 105 VCLVVDSHRELKV-NIHDLLKEI----AKRSSRLILILNKIDCVKPE---RLLEQAEIANKLVFIEKTFMVSATKGHGCD 176 (311) Q Consensus 105 il~VvDa~~~~~~-~~~~il~~l----~~~~~p~IiVlNKiDlv~~~---~l~~~~~~~~~~~~~~~i~~ISAk~g~Gid 176 (311) T Consensus 70 ~i~V~D~t~~~s~~~~~~~~~~~~~~~~~~~~piliv~NK~Dl~~~~~~~ei~~~l~~~~~~~~~~~~~~~SAktg~gI~ 149 (158) T cd00878 70 IIFVVDSSDRERIEEAKEELHKLLNEEELKGVPLLIFANKQDLPGALSVSELIEKLGLEKILGRRWHIQPCSAVTGDGLD 149 (158) T ss_pred EEEEEECCCHHHHHHHHHHHHHHHHHCCCCCCEEEEEEECCCCCCCCCHHHHHHHHHHHHHCCCCCEEEEEECCCCCCHH T ss_conf 68998379888999999999999866055765389876054766578999999998587510799899999888792989 Q ss_pred HHHHHHHHH Q ss_conf 789999983 Q gi|254780941|r 177 DVLNYLCST 185 (311) Q Consensus 177 ~L~~~L~~~ 185 (311) T Consensus 150 e~f~~L~eq 158 (158) T cd00878 150 EGLDWLLQQ 158 (158) T ss_pred HHHHHHHCC T ss_conf 999999569

HHsearch alignment for GI: 254780941 and conserved domain: cd00878