>cd04115 Rab33B_Rab33A Rab33B/Rab33A subfamily. Rab33B is ubiquitously expressed in mouse tissues and cells, where it is localized to the medial Golgi cisternae. It colocalizes with alpha-mannose II. Together with the other cisternal Rabs, Rab6A and Rab6A', it is believed to regulate the Golgi response to stress and is likely a molecular target in stress-activated signaling pathways. Rab33A (previously known as S10) is expressed primarily in the brain and immune system cells. In humans, it is located on the X chromosome at Xq26 and its expression is down-regulated in tuberculosis patients. Experimental evidence suggests that Rab33A is a novel CD8+ T cell factor that likely plays a role in tuberculosis disease processes. 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

Probab=99.61 E-value=3.2e-15 Score=121.49 Aligned_cols=156 Identities=16% Similarity=0.175 Sum_probs=96.3 Q ss_pred CEEEEEEECCCCCHHHHHHHHHCCCCCCCHHHHHHHHHCCCCEEEECCEE--EEEEECHHCCCCCCCCCHHHHHHCCCCC Q ss_conf 30388640356425678876520121100024566542023114203406--9998171104444430001110001210 Q gi|255764471|r 203 PLRIAVVGRPNVGKSTLINRLLGYNRLLTGSQSGITRDSVSISWNWKNHP--IEIFDTAGMRKPSRITESLEQKTVKKSM 280 (470) Q Consensus 203 ~i~~~~~G~pN~GKStl~N~l~~~~r~ivs~~~GtTrD~i~~~~~~~~~~--~~liDTaGirkk~~~~~~~E~~s~~~t~ 280 (470) T Consensus 2 ~~Kiv~lGd~~VGKTsli~r~~~~~-F~~~~~~Tig~d~~~k~i~v~~~~v~l~iwDtaG----------~e~~~~s~~~ 70 (170) T cd04115 2 IFKIIVIGDSNVGKTCLTYRFCAGR-FPERTEATIGVDFRERTVEIDGERIKVQLWDTAG----------QERFRKSMVQ 70 (170) T ss_pred EEEEEEECCCCCCHHHHHHHHHCCC-CCCCCCCCEEEEEEEEEEEECCEEEEEEEEECCC----------CHHHHHHHHH T ss_conf 6999999979977999999995398-8998788630787899999999999999997788----------5305677789 Q ss_pred EEEECCEEEEEECCCCCCCH--HHHHHHHHHHH----CCCCCCCEEEECCCCCCCHHHHHHHHHHHCCCCCCCCCCCCCC Q ss_conf 01201205998455321220--21223200000----0357665589442233541555666542013332004883111 Q gi|255764471|r 281 QSVRTCETTIVLLDATIPFE--KQDLRIVDSVF----NTGHAVVLALNKWDMVSDKLNLLQDLRTKAIKNLPQIGDIYIN 354 (470) Q Consensus 281 ~~i~~advvi~viDa~~~~~--~qd~~i~~~i~----~~~k~~iiv~NK~Dli~~~~~~~~~~~~~~~~~~~~~~~~~i~ 354 (470) T Consensus 71 ~~~~~a~~~ilvydvt~~~Sf~~~~~w~-~~i~~~~~~~~~p~vlVGNK~DL~~~r~Vs~~e~-----~~~a~~~~~~~~ 144 (170) T cd04115 71 HYYRNVHAVVFVYDVTNMASFHSLPSWI-EECEQHSLPNEVPRILVGNKCDLREQIQVPTDLA-----QRFADAHSMPLF 144 (170) T ss_pred HHHCCCCEEEEEEECCCHHHHHHHHHHH-HHHHHHCCCCCCCEEEEEECCCCHHHCCCCHHHH-----HHHHHHCCCEEE T ss_conf 9845773579995047476799999999-9999865888997999999821341178799999-----999997799999 Q ss_pred CCCCC---CCCCHHHHHHHHHHHH Q ss_conf 23453---3348589999999999 Q gi|255764471|r 355 TISGR---TGEGLDDLMVSVLEIN 375 (470) Q Consensus 355 ~iSA~---~g~gi~~l~~~i~~~~ 375 (470) T Consensus 145 E~SAK~~~~~~nV~~~F~~la~~i 168 (170) T cd04115 145 ETSAKDPSENDHVEAIFMTLAHKL 168 (170) T ss_pred EECCCCCCCCCCHHHHHHHHHHHH T ss_conf 988899851708899999999996

HHsearch alignment for GI: 255764471 and conserved domain: cd04115