>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=98.73 E-value=3.3e-07 Score=65.04 Aligned_cols=109 Identities=24% Similarity=0.235 Sum_probs=71.8 Q ss_pred EEEECCCCCCHHHHHHHHHHHCCCCCCCCEECCCCEECCCHHHHHHHCCCEEEE--EEEEEECCCCCCCEEEEEEECCCC Q ss_conf 999868788977899999998087321422017956137808898708537640--799996077787138999817987 Q gi|254780264|r 13 FGIMAHIDAGKTTTTERILYYAGKSHKIGEVHDGSATMDWMEQEQERGITITSA--STTVFWPGRDGGQKKLTIIDTPGH 90 (701) Q Consensus 13 v~iiaHvd~GKTTL~d~LL~~~g~i~~~g~v~~g~~~~D~~~~E~eRgITi~ss--~~sl~~~~~~~~~~~iNlIDTPGH 90 (701) T Consensus 3 ivlvGd~~VGKTsli~r~~~--~~f~~--~------y~----------~Tig~d~~~k~i~~---~~~~~~l~iwDtaG~ 59 (172) T cd01862 3 VIILGDSGVGKTSLMNQYVN--KKFSN--Q------YK----------ATIGADFLTKEVTV---DDKLVTLQIWDTAGQ 59 (172) T ss_pred EEEECCCCCCHHHHHHHHHC--CCCCC--C------CC----------CCCCEEEEEEEEEE---CCEEEEEEEEECCCC T ss_conf 99999899789999999952--98898--7------57----------75551699999999---999999999969998 Q ss_pred CCCHHHHHHHHHHHCEEEEEEECCCCCCHHHHHHH-----HHHHH---CCCCEEEEECCCCC Q ss_conf 55289999999860456999955888883479999-----99987---39978999817676 Q gi|254780264|r 91 VDFTMEVERSIRVTDGAIALLDSNAGVEPQTETVW-----RQADK---YSVPRVIFCNKMDK 144 (701) Q Consensus 91 ~DF~~Ev~~aL~~~DgailvVDa~eGv~~qT~~vl-----r~~~~---~~lp~ilvINKiDr 144 (701) T Consensus 60 e~~~~l~~~~~~~a~~~ilvydvt~~~Sf~~l~~w~~~~~~~~~~~~~~~~piilvgNK~Dl 121 (172) T cd01862 60 ERFQSLGVAFYRGADCCVLVYDVTNPKSFESLDSWRDEFLIQASPSDPENFPFVVLGNKIDL 121 (172) T ss_pred HHHHHHHHHHHHHCCEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCCCCCCEEEEEECCCH T ss_conf 31106889986527579999338998999999999999999727677657638999633683

HHsearch alignment for GI: 254780264 and conserved domain: cd01862