HHsearch alignment for GI: 254780233 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=99.20  E-value=2.8e-10  Score=86.69  Aligned_cols=154  Identities=16%  Similarity=0.228  Sum_probs=98.7

Q ss_pred             EEEECCCCCCHHHHHHHHHHHCCCCCCCCCCCCEECCCCHHHHHCCCEEEEEEEEEEECCEEEEEECCCCCCCCHHHHHH
Q ss_conf             99985468987788999999839614232200000388577987096064679999989979999728987540799999
Q gi|254780233|r   22 IAIIAHVDHGKTTLVDELLKQSGVFRDNQRVSERVMDCNDLEKERGITILAKVTSIVWNDVRINIVDTPGHADFGGEVER  101 (624)
Q Consensus        22 iaIiaHvDhGKTTL~d~LL~~sG~~~~~~~v~~~vmD~~~~EreRGITI~a~~~~~~~~~~~iNiiDTPGH~DF~gEVer  101 (624)
T Consensus         3 ivvvG~~~vGKTsli~r~~~--~~f~~~~~------------~ti~~~~~~~~~~~~~~~~~l~iwDt~g~~~~~~~~~~   68 (161)
T cd01863           3 ILLIGDSGVGKSSLLLRFTD--DTFDPDLA------------ATIGVDFKVKTLTVDGKKVKLAIWDTAGQERFRTLTSS   68 (161)
T ss_pred             EEEECCCCCCHHHHHHHHHH--CCCCCCCC------------CCCCCCCEEEEEEECCEEEEEEEEECCCCCCCCCCHHH
T ss_conf             99999799579999999963--99999848------------73133423899999999999999999998423534224


Q ss_pred             HHHHHCEEEEEEECCCCCCHHHHHHHHHHHH-----CCCCEEEEEECCCCCCCCHHHHHHHHHHHHHHCCCCHHHCCHHH
Q ss_conf             9874217899997687886478999999997-----29978999975436674025689999988862267301104266
Q gi|254780233|r  102 ILCMVESVVVLVDAAEGPMPQTKFVVGKALK-----IGLRPIVVVNKVDRSDARADEVINEVFDLFSALDATDAQLDFPI  176 (624)
Q Consensus       102 ~l~~~DgaiLvVdA~eGv~~QT~~vl~~A~~-----~~l~~IvvINKiDr~~a~~~~v~~ei~dlf~~l~a~de~ld~Pv  176 (624)
T Consensus        69 ~~~~a~~~ilvfd~~~~~Sf~~i~~~~~~i~~~~~~~~~~~ilVgnK~D~~~~~v~--~~~~~~~a~~-------~~~~y  139 (161)
T cd01863          69 YYRGAQGVILVYDVTRRDTFTNLETWLNELETYSTNNDIVKMLVGNKIDKENREVT--REEGLKFARK-------HNMLF  139 (161)
T ss_pred             HHHHCCEEEEEEECCCHHHHHHHHHHHHHHHHHCCCCCCEEEEEEECCCCCCCCCC--HHHHHHHHHH-------CCCEE
T ss_conf             41321534899767826569999999999998568888737887310440006899--9999999998-------69999


Q ss_pred             HHHHHHCCEECCCCCCCCCCCCHHHHHHHHCCC
Q ss_conf             887886591646742233486413555321024
Q gi|254780233|r  177 LYGSGRFGWMSDSSDGSRDQGMVPLLNLIVDHV  209 (624)
Q Consensus       177 ~~~Sa~~G~~~~~~~~~~~~gl~~Lld~Ii~~i  209 (624)
T Consensus       140 ~e~Sak~g-----------~nV~~~F~~l~~~i  161 (161)
T cd01863         140 IETSAKTR-----------DGVQQAFEELVEKI  161 (161)
T ss_pred             EEECCCCC-----------CCHHHHHHHHHHHC
T ss_conf             99715868-----------15999999999709