HHsearch alignment for GI: 254780941 and conserved domain: cd01863

>cd01863 Rab18 Rab18 subfamily. Mammalian Rab18 is implicated in endocytic transport and is expressed most highly in polarized epithelial cells. However, trypanosomal Rab, TbRAB18, is upregulated in the BSF (Blood Stream Form) stage and localized predominantly to elements of the Golgi complex. In human and mouse cells, Rab18 has been identified in lipid droplets, organelles that store neutral lipids. GTPase activating proteins (GAPs) interact with GTP-bound Rab and accelerate the hydrolysis of GTP to GDP. Guanine nucleotide exchange factors (GEFs) interact with GDP-bound Rabs to promote the formation of the GTP-bound state. Rabs are further regulated by guanine nucleotide dissociation inhibitors (GDIs), which facilitate Rab recycling by masking C-terminal lipid binding and promoting cytosolic localization. Most Rab GTPases contain a lipid modification site at the C-terminus, with sequence motifs CC, CXC, or CCX. Lipid binding is essential for membrane attachment, a key feature of mos
Probab=99.66  E-value=8.8e-16  Score=121.97  Aligned_cols=153  Identities=21%  Similarity=0.202  Sum_probs=97.0

Q ss_pred             EEEEECCCCCCHHHHHHHHHCCCEEEECCCCCCEEEEEEEEEEEC--CEEEEEEECCCCHHHCCCCCCCCCCHHHHHHHH
Q ss_conf             899833899868899999868920210588886021278999739--948999987984010123575321002345555
Q gi|254780941|r   24 CVALVGATNAGKSTLVNRFVGAKVSIVTHKVQTTRSIVRGIVSEK--ESQIVFLDTPGIFNAKDSYHKLMIRLSWSTIKH  101 (311)
Q Consensus        24 ~VaivG~pN~GKSTL~N~l~g~~vsivS~k~~TTr~~i~gi~~~~--~~qiifvDTPG~~~~~~~l~~~~~~~~~~~l~~  101 (311)
T Consensus         2 KivvvG~~~vGKTsli~r~~~~~f~~~-~~~ti~~~~~~~~~~~~~~~~~l~iwDt~g~~~--------~~~~~~~~~~~   72 (161)
T cd01863           2 KILLIGDSGVGKSSLLLRFTDDTFDPD-LAATIGVDFKVKTLTVDGKKVKLAIWDTAGQER--------FRTLTSSYYRG   72 (161)
T ss_pred             EEEEECCCCCCHHHHHHHHHHCCCCCC-CCCCCCCCCEEEEEEECCEEEEEEEEECCCCCC--------CCCCHHHHHHH
T ss_conf             899999799579999999963999998-487313342389999999999999999999842--------35342244132


Q ss_pred             HHHHCCCCHHHHHHHCC-HHHHHHHHHH----CCCCCEEEEEECCCHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCHH
Q ss_conf             32100110000100000-0012234544----287202578721101043457888864100123343110001387426
Q gi|254780941|r  102 ADIVCLVVDSHRELKVN-IHDLLKEIAK----RSSRLILILNKIDCVKPERLLEQAEIANKLVFIEKTFMVSATKGHGCD  176 (311)
Q Consensus       102 aDiil~VvDa~~~~~~~-~~~il~~l~~----~~~p~IiVlNKiDlv~~~~l~~~~~~~~~~~~~~~i~~ISAk~g~Gid  176 (311)
T Consensus        73 a~~~ilvfd~~~~~Sf~~i~~~~~~i~~~~~~~~~~~ilVgnK~D~~~~~v~~~~~~~~a~~~~~-~y~e~Sak~g~nV~  151 (161)
T cd01863          73 AQGVILVYDVTRRDTFTNLETWLNELETYSTNNDIVKMLVGNKIDKENREVTREEGLKFARKHNM-LFIETSAKTRDGVQ  151 (161)
T ss_pred             CCEEEEEEECCCHHHHHHHHHHHHHHHHHCCCCCCEEEEEEECCCCCCCCCCHHHHHHHHHHCCC-EEEEECCCCCCCHH
T ss_conf             15348997678265699999999999985688887378873104400068999999999998699-99997158681599


Q ss_pred             HHHHHHHHHC
Q ss_conf             7899999836
Q gi|254780941|r  177 DVLNYLCSTL  186 (311)
Q Consensus       177 ~L~~~L~~~l  186 (311)
T Consensus       152 ~~F~~l~~~i  161 (161)
T cd01863         152 QAFEELVEKI  161 (161)
T ss_pred             HHHHHHHHHC
T ss_conf             9999999709