>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=99.37 E-value=3.9e-11 Score=94.25 Aligned_cols=155 Identities=19% Similarity=0.241 Sum_probs=98.8 Q ss_pred EEEECCCCCCHHHHHHHHHHHCCCCCCCCCCCEEECCCHHHHHHCCEEEEEEEEEEEECCCCCEEEEEEEECCCCCHHHH Q ss_conf 99980138987788999999829805444431130586779871950523279999743788438999961787300279 Q gi|254780321|r 14 FSIVAHIDHGKSTLADRFIQHCRGLTEREMSSQVLDNMDIERERGITIKAQTVRLNYTSTDAKDYQLNLIDTPGHVDFTY 93 (606) Q Consensus 14 ~~IiaHvDhGKTTL~d~lL~~tg~i~~~~~~~~vlD~~~~EreRGITIka~~~~~~~~~~~~~~y~iNlIDTPGH~DF~~ 93 (606) T Consensus 3 ivlvGd~~VGKTsli~r~~--~~~f~~~y-~~Ti----------g~d~~~k~i-----~~~~~~~~l~iwDtaG~e~~~~ 64 (172) T cd01862 3 VIILGDSGVGKTSLMNQYV--NKKFSNQY-KATI----------GADFLTKEV-----TVDDKLVTLQIWDTAGQERFQS 64 (172) T ss_pred EEEECCCCCCHHHHHHHHH--CCCCCCCC-CCCC----------CEEEEEEEE-----EECCEEEEEEEEECCCCHHHHH T ss_conf 9999989978999999995--29889875-7755----------516999999-----9999999999996999831106 Q ss_pred HHHHHHHHCCEEEEEEECCCCCCHHHHHHHHHH-H-H------CCCCEEEEECCCCCCCCCCCCHHHHHHHHHH-HHHHH Q ss_conf 999999730268999986878865589999999-9-7------0996799832678875321133888775553-22321 Q gi|254780321|r 94 EVSRSLSACEGSLLVVDATQGVEAQTLANVYQA-I-D------NNHEIITVLNKADLPSADPDRVKKQIEETIG-ISTED 164 (606) Q Consensus 94 EV~r~l~a~dgaiLvVdA~~Gvq~QT~~~~~~A-~-~------~~l~~I~viNKiD~~~A~~e~v~~ei~~~~g-~~~~~ 164 (606) T Consensus 65 l~~~~~~~a~~~ilvydvt~~~Sf~~l~~w~~~~~~~~~~~~~~~~piilvgNK~Dl~~~r~-V~~~e~~~~a~~~~~~~ 143 (172) T cd01862 65 LGVAFYRGADCCVLVYDVTNPKSFESLDSWRDEFLIQASPSDPENFPFVVLGNKIDLEEKRQ-VSTKKAQQWCQSNGNIP 143 (172) T ss_pred HHHHHHHHCCEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCCCCCCEEEEEECCCHHHCCC-CCHHHHHHHHHHCCCCE T ss_conf 88998652757999933899899999999999999972767765763899963368364189-99999999999769978 Q ss_pred HHHHHHHCCCCCCHHHHHHHHHH Q ss_conf 00011100223200678776321 Q gi|254780321|r 165 ALLVSAKTGEGIPLLLERIVQQL 187 (606) Q Consensus 165 ii~vSAktG~GV~~LLd~Iv~~i 187 (606) T Consensus 144 ~~E~SAk~~~nV~e~F~~l~~~~ 166 (172) T cd01862 144 YFETSAKEAINVEQAFETIARKA 166 (172) T ss_pred EEEECCCCCCCHHHHHHHHHHHH T ss_conf 99975267919899999999999

HHsearch alignment for GI: 254780321 and conserved domain: cd01862