>cd01862 Rab7 Rab7 subfamily. Rab7 is a small Rab GTPase that regulates vesicular traffic from early to late endosomal stages of the endocytic pathway. The yeast Ypt7 and mammalian Rab7 are both involved in transport to the vacuole/lysosome, whereas Ypt7 is also required for homotypic vacuole fusion. Mammalian Rab7 is an essential participant in the autophagic pathway for sequestration and targeting of cytoplasmic components to the lytic compartment. Mammalian Rab7 is also proposed to function as a tumor suppressor. 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-

Probab=99.65 E-value=1.7e-15 Score=120.05 Aligned_cols=155 Identities=19% Similarity=0.202 Sum_probs=97.5 Q ss_pred EEEEECCCCCCHHHHHHHHHCCCEEEECCCCCCE-EEEEEEEEEECC--EEEEEEECCCCHHHCCCCCCCCCCHHHHHHH Q ss_conf 8998338998688999998689202105888860-212789997399--4899998798401012357532100234555 Q gi|254780941|r 24 CVALVGATNAGKSTLVNRFVGAKVSIVTHKVQTT-RSIVRGIVSEKE--SQIVFLDTPGIFNAKDSYHKLMIRLSWSTIK 100 (311) Q Consensus 24 ~VaivG~pN~GKSTL~N~l~g~~vsivS~k~~TT-r~~i~gi~~~~~--~qiifvDTPG~~~~~~~l~~~~~~~~~~~l~ 100 (311) T Consensus 2 KivlvGd~~VGKTsli~r~~~~~f~~--~y~~Tig~d~~~k~i~~~~~~~~l~iwDtaG~e--------~~~~l~~~~~~ 71 (172) T cd01862 2 KVIILGDSGVGKTSLMNQYVNKKFSN--QYKATIGADFLTKEVTVDDKLVTLQIWDTAGQE--------RFQSLGVAFYR 71 (172) T ss_pred EEEEECCCCCCHHHHHHHHHCCCCCC--CCCCCCCEEEEEEEEEECCEEEEEEEEECCCCH--------HHHHHHHHHHH T ss_conf 89999989978999999995298898--757755516999999999999999999699983--------11068899865 Q ss_pred HHHHHCCCCHHHHHHHCC-HHHHHHHH----H---HCCCCCEEEEEECCCHHHHHH-HHHHHHHHHCCCCCCCCCCCCCC Q ss_conf 532100110000100000-00122345----4---428720257872110104345-78888641001233431100013 Q gi|254780941|r 101 HADIVCLVVDSHRELKVN-IHDLLKEI----A---KRSSRLILILNKIDCVKPERL-LEQAEIANKLVFIEKTFMVSATK 171 (311) Q Consensus 101 ~aDiil~VvDa~~~~~~~-~~~il~~l----~---~~~~p~IiVlNKiDlv~~~~l-~~~~~~~~~~~~~~~i~~ISAk~ 171 (311) T Consensus 72 ~a~~~ilvydvt~~~Sf~~l~~w~~~~~~~~~~~~~~~~piilvgNK~Dl~~~r~V~~~e~~~~a~~~~~~~~~E~SAk~ 151 (172) T cd01862 72 GADCCVLVYDVTNPKSFESLDSWRDEFLIQASPSDPENFPFVVLGNKIDLEEKRQVSTKKAQQWCQSNGNIPYFETSAKE 151 (172) T ss_pred HCCEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCCCCCCEEEEEECCCHHHCCCCCHHHHHHHHHHCCCCEEEEECCCC T ss_conf 27579999338998999999999999999727677657638999633683641899999999999976997899975267 Q ss_pred CCCHHHHHHHHHHHCCC Q ss_conf 87426789999983662 Q gi|254780941|r 172 GHGCDDVLNYLCSTLPL 188 (311) Q Consensus 172 g~Gid~L~~~L~~~lpe 188 (311) T Consensus 152 ~~nV~e~F~~l~~~~l~ 168 (172) T cd01862 152 AINVEQAFETIARKALE 168 (172) T ss_pred CCCHHHHHHHHHHHHHH T ss_conf 91989999999999998

HHsearch alignment for GI: 254780941 and conserved domain: cd01862