>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=6.2e-16 Score=126.30 Aligned_cols=158 Identities=16% Similarity=0.189 Sum_probs=97.7 Q ss_pred EEEEEEECCCCCHHHHHHHHHCCCCCCCHHHHHHH-HHCCCCEEEECCEE--EEEEECHHCCCCCCCCCHHHHHHCCCCC Q ss_conf 03886403564256788765201211000245665-42023114203406--9998171104444430001110001210 Q gi|255764471|r 204 LRIAVVGRPNVGKSTLINRLLGYNRLLTGSQSGIT-RDSVSISWNWKNHP--IEIFDTAGMRKPSRITESLEQKTVKKSM 280 (470) Q Consensus 204 i~~~~~G~pN~GKStl~N~l~~~~r~ivs~~~GtT-rD~i~~~~~~~~~~--~~liDTaGirkk~~~~~~~E~~s~~~t~ 280 (470) T Consensus 1 ~KivlvGd~~VGKTsli~r~~~~~f--~~~y~~Tig~d~~~k~i~~~~~~~~l~iwDtaG----------~e~~~~l~-~ 67 (172) T cd01862 1 LKVIILGDSGVGKTSLMNQYVNKKF--SNQYKATIGADFLTKEVTVDDKLVTLQIWDTAG----------QERFQSLG-V 67 (172) T ss_pred CEEEEECCCCCCHHHHHHHHHCCCC--CCCCCCCCCEEEEEEEEEECCEEEEEEEEECCC----------CHHHHHHH-H T ss_conf 9899999899789999999952988--987577555169999999999999999996999----------83110688-9 Q ss_pred EEEECCEEEEEECCCCCCCHHH--HHHH---HHHHHC---CCCCCCEEEECCCCCCCHHHHHHHHHHHCCCCCCCCCCCC Q ss_conf 0120120599845532122021--2232---000000---3576655894422335415556665420133320048831 Q gi|255764471|r 281 QSVRTCETTIVLLDATIPFEKQ--DLRI---VDSVFN---TGHAVVLALNKWDMVSDKLNLLQDLRTKAIKNLPQIGDIY 352 (470) Q Consensus 281 ~~i~~advvi~viDa~~~~~~q--d~~i---~~~i~~---~~k~~iiv~NK~Dli~~~~~~~~~~~~~~~~~~~~~~~~~ 352 (470) T Consensus 68 ~~~~~a~~~ilvydvt~~~Sf~~l~~w~~~~~~~~~~~~~~~~piilvgNK~Dl~~~r~V~~~e~~~~a~----~~~~~~ 143 (172) T cd01862 68 AFYRGADCCVLVYDVTNPKSFESLDSWRDEFLIQASPSDPENFPFVVLGNKIDLEEKRQVSTKKAQQWCQ----SNGNIP 143 (172) T ss_pred HHHHHCCEEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCCCCCCEEEEEECCCHHHCCCCCHHHHHHHHH----HCCCCE T ss_conf 9865275799993389989999999999999997276776576389996336836418999999999999----769978 Q ss_pred CCCCCCCCCCCHHHHHHHHHHHHHHH Q ss_conf 11234533348589999999999984 Q gi|255764471|r 353 INTISGRTGEGLDDLMVSVLEINKLW 378 (470) Q Consensus 353 i~~iSA~~g~gi~~l~~~i~~~~~~~ 378 (470) T Consensus 144 ~~E~SAk~~~nV~e~F~~l~~~~l~~ 169 (172) T cd01862 144 YFETSAKEAINVEQAFETIARKALEQ 169 (172) T ss_pred EEEECCCCCCCHHHHHHHHHHHHHHH T ss_conf 99975267919899999999999986

HHsearch alignment for GI: 255764471 and conserved domain: cd01862