>cd04154 Arl2 Arl2 subfamily. Arl2 (Arf-like 2) GTPases are members of the Arf family that bind GDP and GTP with very low affinity. Unlike most Arf family proteins, Arl2 is not myristoylated at its N-terminal helix. The protein PDE-delta, first identified in photoreceptor rod cells, binds specifically to Arl2 and is structurally very similar to RhoGDI. Despite the high structural similarity between Arl2 and Rho proteins and between PDE-delta and RhoGDI, the interactions between the GTPases and their effectors are very different. In its GTP bound form, Arl2 interacts with the protein Binder of Arl2 (BART), and the complex is believed to play a role in mitochondrial adenine nucleotide transport. In its GDP bound form, Arl2 interacts with tubulin- folding Cofactor D; this interaction is believed to play a role in regulation of microtubule dynamics that impact the cytoskeleton, cell division, and cytokinesis.

Probab=99.43 E-value=5.5e-13 Score=99.59 Aligned_cols=145 Identities=21% Similarity=0.201 Sum_probs=90.9 Q ss_pred CCCCEEEEEEEECCCCCHHHHHHHHHHHHHHHHHCCCCCCCCHHHHHCCCEEEEEEEEEECCCEEEEEEECCCCHHHHHH Q ss_conf 03882799999046898878999999876444200131268686986292063789998219908999847873024677 Q gi|254780150|r 8 RNKESLGLSTIGHVDHGKTTLTAAITKYYSEEKKEYGDIDSAPEEKLRGITIATAHVSYETDKRFYSHIDCPGHADYVKN 87 (392) Q Consensus 8 ~~k~~~ni~~iGhvd~GKSTL~~~L~~~~~~~~~~~~~~D~~~~E~~rGiTi~~~~~~~~~~~~~i~iiD~PGH~~f~~~ 87 (392) T Consensus 10 ~~~~~~KililG~~~sGKTsll~~l~~~---------~~~~------~~pT~G~~~~~~~~~~~~l~iwD~~G~e~~~~~ 74 (173) T cd04154 10 LKEREMRILILGLDNAGKTTILKKLLGE---------DIDT------ISPTLGFQIKTLEYEGYKLNIWDVGGQKTLRPY 74 (173) T ss_pred CCCCCEEEEEECCCCCCHHHHHHHHCCC---------CCCC------CCCCCCEEEEEEEECCEEEEEEECCCCCCCCHH T ss_conf 4457318999989997889999998399---------9897------267057778999989999999966886020058 Q ss_pred HHHHHHCCCCEEEEECCCCCC-CCCHHHHHH-HH---HHCCCCCEEEEECCCCCCCCHHHHHHCCCCCCEEEEEEEE-EE Q ss_conf 987740023314520123443-321067788-88---6318760233100233356122211012321001110145-32 Q gi|254780150|r 88 MITGATQADGAILVCAAEDGP-KPQTREHIL-LA---RQIGISSIVVYMNKVDAVDDDELLDISEYEIRDLLKEHKY-SD 161 (392) Q Consensus 88 mi~g~~~~D~ailvVda~~G~-~~QT~eh~~-l~---~~lgi~~iIv~iNKmD~v~~~~~~~~i~~~i~~~l~~~~~-~~ 161 (392) T Consensus 75 ~~~y~~~a~~ii~VvD~td~~~~~~~~~~l~~ll~~~~~~~~p-ili~~NK~Dl~~~~~-~~----ei~~~l~l~~~~~~ 148 (173) T cd04154 75 WRNYFESTDALIWVVDSSDRLRLDDCKRELKELLQEERLAGAT-LLILANKQDLPGALS-EE----EIREALELDKISSH 148 (173) T ss_pred HHHHHCCCCEEEEEEECCCHHHHHHHHHHHHHHHHHHHCCCCC-EEEEEECCCCCCCCC-HH----HHHHHHHHHHCCCC T ss_conf 9997226653899985565788999999999998635415984-799987656777889-99----99999868744579 Q ss_pred EEECCCCEEEEE Q ss_conf 210233114676 Q gi|254780150|r 162 DTPIIRGSALCA 173 (392) Q Consensus 162 ~~pii~~sa~~g 173 (392) T Consensus 149 ~~~~~~~SAktG 160 (173) T cd04154 149 HWRIQPCSAVTG 160 (173) T ss_pred CCEEEEEECCCC T ss_conf 829999889669

HHsearch alignment for GI: 254780150 and conserved domain: cd04154