>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=99.46 E-value=4.8e-13 Score=110.32 Aligned_cols=135 Identities=24% Similarity=0.300 Sum_probs=94.7 Q ss_pred CCEEEECCCCCCHHHHHHHHHCCHHCCCCCCCCCC-EEECCCCCCCCCE--EEEEEECCHHCCCCHHHHHHHHHHHHHHH Q ss_conf 30243114663188899998552000234546872-1100012456835--89995081000241035666678889985 Q gi|254780809|r 220 YKIVILGHSNAGKSSLFNALAKKDVAIVTDIPGTT-RDVLTIDLDLEGY--LVKISDTAGIRETDDIVEKEGIKRTFLEV 296 (440) Q Consensus 220 ~~v~i~G~pN~GKSSL~N~L~~~~~aIVs~~~GTT-RD~i~~~~~i~g~--~~~l~DTaGir~t~d~IE~~GI~ra~~~i 296 (440) T Consensus 1 ~KivlvGd~~VGKTsli~r~~~~~f--~~~y~~Tig~d~~~k~i~~~~~~~~l~iwDtaG~e~~~--------~l~~~~~ 70 (172) T cd01862 1 LKVIILGDSGVGKTSLMNQYVNKKF--SNQYKATIGADFLTKEVTVDDKLVTLQIWDTAGQERFQ--------SLGVAFY 70 (172) T ss_pred CEEEEECCCCCCHHHHHHHHHCCCC--CCCCCCCCCEEEEEEEEEECCEEEEEEEEECCCCHHHH--------HHHHHHH T ss_conf 9899999899789999999952988--98757755516999999999999999999699983110--------6889986 Q ss_pred HHHCCEEECCCCCCHHHHHHH----------------CCCCCCCCCCCCCCCCCCCH----------H----HHHHHHHH Q ss_conf 030110201358985663431----------------28985322223334465420----------0----00013333 Q gi|254780809|r 297 ENADLILLLKEINSKKEISFP----------------KNIDFIFIGTKSDLYSTYTE----------E----YDHLISSF 346 (440) Q Consensus 297 ~~aDlil~v~D~~~~~~~~~~----------------~~~~~i~V~NK~Dl~~~~~~----------~----~~~~ISak 346 (440) T Consensus 71 ~~a~~~ilvydvt~~~Sf~~l~~w~~~~~~~~~~~~~~~~piilvgNK~Dl~~~r~V~~~e~~~~a~~~~~~~~~E~SAk 150 (172) T cd01862 71 RGADCCVLVYDVTNPKSFESLDSWRDEFLIQASPSDPENFPFVVLGNKIDLEEKRQVSTKKAQQWCQSNGNIPYFETSAK 150 (172) T ss_pred HHCCEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCCCCCCEEEEEECCCHHHCCCCCHHHHHHHHHHCCCCEEEEECCC T ss_conf 52757999933899899999999999999972767765763899963368364189999999999997699789997526 Q ss_pred HHHHHHHHHHHHHHHHHH Q ss_conf 232358999999999632 Q gi|254780809|r 347 TGEGLEELINKIKSILSN 364 (440) Q Consensus 347 tg~Gi~~L~~~I~~~l~~ 364 (440) T Consensus 151 ~~~nV~e~F~~l~~~~l~ 168 (172) T cd01862 151 EAINVEQAFETIARKALE 168 (172) T ss_pred CCCCHHHHHHHHHHHHHH T ss_conf 791989999999999998

HHsearch alignment for GI: 254780809 and conserved domain: cd01862