>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=99.61 E-value=1.4e-15 Score=114.29 Aligned_cols=158 Identities=16% Similarity=0.166 Sum_probs=106.1 Q ss_pred EEEEECCCCCCCEEEEEECCCCCHHHHHHHCCCEECCE------EEEECC--EEEEEECCCCCCCCCCCCCCCHHHHHHH Q ss_conf 12442167775303541014540121211000000102------663298--6899822642124731167751234433 Q gi|254780648|r 162 IGIIGLPNAGKSTFLASVTRAKPKIADYPFTTLYPNLG------IVKEGY--KEFILADIPGIIKNAHQGAGIGDRFLKH 233 (335) Q Consensus 162 VglVG~PNaGKSTLln~ls~ak~kIa~ypFTT~~P~lG------vv~~~~--~~~~i~D~PGlIegA~~~~glG~~FLrh 233 (335) T Consensus 3 ivlvGd~~VGKTsli~r~~~~~f-~~~y-----~~Tig~d~~~k~i~~~~~~~~l~iwDtaG~e~----~~~l~~~---~ 69 (172) T cd01862 3 VIILGDSGVGKTSLMNQYVNKKF-SNQY-----KATIGADFLTKEVTVDDKLVTLQIWDTAGQER----FQSLGVA---F 69 (172) T ss_pred EEEECCCCCCHHHHHHHHHCCCC-CCCC-----CCCCCEEEEEEEEEECCEEEEEEEEECCCCHH----HHHHHHH---H T ss_conf 99999899789999999952988-9875-----77555169999999999999999996999831----1068899---8 Q ss_pred HHHHHHHHHHCCCCCCCHHHHHHHHHHHHHHHH--HHHCCCCEEEEEECCCCCCHHHH-HHHHHHHHHHCC-CCEEEEEC Q ss_conf 333578875202222110134666789987776--67505988999974658998899-999999998629-94899988 Q gi|254780648|r 234 TERTHVLLHIVSALEENVQAAYQCILDELSAYN--SELRKKIEIVGLSQIDTVDSDTL-ARKKNELATQCG-QVPFEFSS 309 (335) Q Consensus 234 Ier~~vLl~VVD~s~~d~~~~~~~I~~EL~~y~--~~L~~Kp~IIVlNKiDl~~~e~~-~~~~~~l~~~~~-~~vi~ISA 309 (335) T Consensus 70 ~~~a~~~ilvydvt~~~Sf~~l~~w~~~~~~~~~~~~~~~~piilvgNK~Dl~~~r~V~~~e~~~~a~~~~~~~~~E~SA 149 (172) T cd01862 70 YRGADCCVLVYDVTNPKSFESLDSWRDEFLIQASPSDPENFPFVVLGNKIDLEEKRQVSTKKAQQWCQSNGNIPYFETSA 149 (172) T ss_pred HHHCCEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCCCCCCEEEEEECCCHHHCCCCCHHHHHHHHHHCCCCEEEEECC T ss_conf 65275799993389989999999999999997276776576389996336836418999999999999769978999752 Q ss_pred CCCCCHHHHHHHHHHHHHHHHHH Q ss_conf 87889999999999999854523 Q gi|254780648|r 310 ITGHGIPQILECLHDKIFSIRGE 332 (335) Q Consensus 310 ~tg~GI~eL~~~I~e~L~~~r~e 332 (335) T Consensus 150 k~~~nV~e~F~~l~~~~l~~~k~ 172 (172) T cd01862 150 KEAINVEQAFETIARKALEQEKE 172 (172) T ss_pred CCCCCHHHHHHHHHHHHHHHCCC T ss_conf 67919899999999999986329

HHsearch alignment for GI: 254780648 and conserved domain: cd01862