>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=99.74 E-value=1.5e-17 Score=137.27 Aligned_cols=145 Identities=22% Similarity=0.251 Sum_probs=96.4 Q ss_pred EEEEECCCCCCHHHHHHHHHCCCEEEECCCCCCEEEEEEEEEEECCEEEEEEECCCCCCCCHHHHHHHHHHHHHHHHHHC Q ss_conf 89997189887888999985885010258985302238999998998999996588420763689999999999999877 Q gi|255764471|r 4 TIAIVGAPNVGKSTLFNRLVKKKMAVVGNHPGITRDRLYGQAIINGVIFNIVDTAGIADGKNCSIAKQMNDQTELAINEA 83 (470) Q Consensus 4 ~iaivG~pNvGKStL~N~l~~~~~aiv~~~~g~Trd~~~~~~~~~~~~~~liDT~G~~~~~~~~~~~~i~~~~~~ai~~a 83 (470) T Consensus 1 Ki~ilG~~~vGKTsll~~l~~~~~~~~--~p--Tig~~~~~i~~~~~~l~iwDt~G~~~-----~----~~~~~~y~~~a 67 (158) T cd00878 1 RILILGLDGAGKTTILYKLKLGEVVTT--IP--TIGFNVETVEYKNVSFTVWDVGGQDK-----I----RPLWKHYYENT 67 (158) T ss_pred CEEEECCCCCCHHHHHHHHHCCCCCCC--CC--EECCCEEEEEECCEEEEEEECCCCCC-----C----CHHHHHHHCCC T ss_conf 999999999988999999953998874--45--60740899984889999998899722-----1----44899872768 Q ss_pred CEEEEEECCCCCCC--HHHHHHHHHHH---CCCCCCCCCHHHHCCCHHHH--HHHHHHH---HCCC--CCEEEHHHCCCC Q ss_conf 98999975988776--23445553321---02332222056522301210--0124553---1222--201001110222 Q gi|255764471|r 84 HLILFLIDSKAGIT--PYDHAITSFLR---KKNIPIIIVSNKMDTRIAQR--NFYEIYS---LDFK--EIVEISAEHDLG 151 (470) Q Consensus 84 D~il~vvD~~~g~~--~~D~~i~~~lr---~~~~~~ilv~NK~D~~~~~~--~~~e~~~---lg~~--~~i~iSA~~g~G 151 (470) T Consensus 68 ~~~i~V~D~t~~~s~~~~~~~~~~~~~~~~~~~~piliv~NK~Dl~~~~~~~ei~~~l~~~~~~~~~~~~~~~SAktg~g 147 (158) T cd00878 68 NGIIFVVDSSDRERIEEAKEELHKLLNEEELKGVPLLIFANKQDLPGALSVSELIEKLGLEKILGRRWHIQPCSAVTGDG 147 (158) T ss_pred CEEEEEEECCCHHHHHHHHHHHHHHHHHCCCCCCEEEEEEECCCCCCCCCHHHHHHHHHHHHHCCCCCEEEEEECCCCCC T ss_conf 77689983798889999999999998660557653898760547665789999999985875107998999998887929 Q ss_pred CHHHHHHHHH Q ss_conf 0147999999 Q gi|255764471|r 152 TSELHSVIFK 161 (470) Q Consensus 152 i~~L~~~i~~ 161 (470) T Consensus 148 I~e~f~~L~e 157 (158) T cd00878 148 LDEGLDWLLQ 157 (158) T ss_pred HHHHHHHHHC T ss_conf 8999999956

HHsearch alignment for GI: 255764471 and conserved domain: cd00878