>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=96.61 E-value=0.015 Score=38.12 Aligned_cols=133 Identities=17% Similarity=0.229 Sum_probs=66.4 Q ss_pred EECCCCCCCCHHHHHHHHHHHHHHCCCCEEEEECCCCCHHHHHHHHHHHHHHCCCCCCCCCCCCCHHHHHHHHHHHHHHC Q ss_conf 31135444442478999999985226742677434512456889999975303532122358661245422899996514 Q gi|254780709|r 114 ILVVGVNGVGKTTVIGKLSKKMSDAGLKVMLAAGDTFRSAAIDQLKIWADRTSADFVCSEIGSDAAALAYEAFKQAQAKK 193 (321) Q Consensus 114 il~vG~nG~GKTTT~aKLA~~~~~~g~kV~lva~DtfR~aA~eQL~~~a~~~~v~~~~~~~~~dp~~v~~~a~~~a~~~~ 193 (321) T Consensus 2 i~ilG~~~vGKTsll~~l~~~----~~~------~~-~-----------pTig~~~~---------~i--------~~~~ 42 (158) T cd00878 2 ILILGLDGAGKTTILYKLKLG----EVV------TT-I-----------PTIGFNVE---------TV--------EYKN 42 (158) T ss_pred EEEECCCCCCHHHHHHHHHCC----CCC------CC-C-----------CEECCCEE---------EE--------EECC T ss_conf 999999999889999999539----988------74-4-----------56074089---------99--------8488 Q ss_pred CCEEEEECCCCCCCHHHHHHHHHHHHHHHHCCCCCCCCEEEEECCCCCCHHHHHHHH-HHHHHC---C---CC-EEEEEC Q ss_conf 875998654333211577899998998763022234301123102335225778999-876435---8---97-699965 Q gi|254780709|r 194 VDVLIIDTAGRLHNNSILMAGIGKMIRVLKRLDPHAPHSVLQVLDATTGQNALRQVE-MFHAVA---G---TT-GLIMTK 265 (321) Q Consensus 194 ~DvvliDTAGR~~~~~~lm~EL~ki~~v~~~~~~~~p~~~~lVlda~~gq~~~~~a~-~F~~~~---~---~~-g~I~TK 265 (321) T Consensus 43 ~~l~iwDt~G~~~-----~~~~~~~------y~-~~a~~~i~V~D~t~~-~s~~~~~~~~~~~~~~~~~~~~piliv~NK 109 (158) T cd00878 43 VSFTVWDVGGQDK-----IRPLWKH------YY-ENTNGIIFVVDSSDR-ERIEEAKEELHKLLNEEELKGVPLLIFANK 109 (158) T ss_pred EEEEEEECCCCCC-----CCHHHHH------HH-CCCCEEEEEEECCCH-HHHHHHHHHHHHHHHHCCCCCCEEEEEEEC T ss_conf 9999998899722-----1448998------72-768776899837988-899999999999986605576538987605 Q ss_pred CCCCC-----CHHHHHHHHHHHCCCEEEEE----CCCCCCCC Q ss_conf 45787-----06999999999769889997----58981325 Q gi|254780709|r 266 MDGTA-----RGGGLIPIVVTHKIPVYFLG----VGEGINDL 298 (321) Q Consensus 266 lD~ta-----~~G~~ls~~~~~~~Pi~fig----~Ge~i~Dl 298 (321) T Consensus 110 ~Dl~~~~~~~ei~~~l~~~~~~~~~~~~~~~SAktg~gI~e~ 151 (158) T cd00878 110 QDLPGALSVSELIEKLGLEKILGRRWHIQPCSAVTGDGLDEG 151 (158) T ss_pred CCCCCCCCHHHHHHHHHHHHHCCCCCEEEEEECCCCCCHHHH T ss_conf 476657899999999858751079989999988879298999

HHsearch alignment for GI: 254780709 and conserved domain: cd00878