>cd04120 Rab12 Rab12 subfamily. Rab12 was first identified in canine cells, where it was localized to the Golgi complex. The specific function of Rab12 remains unknown, and inconsistent results about its cellular localization have been reported. More recent studies have identified Rab12 associated with post-Golgi vesicles, or with other small vesicle-like structures but not with the Golgi complex. Most Rab GTPases contain a lipid modification site at the C-terminus, with sequence motifs CC, CXC, or CCX. Lipid binding is essential for membrane attachment, a key feature of most Rab proteins. 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

Probab=99.04 E-value=8.1e-10 Score=85.12 Aligned_cols=144 Identities=21% Similarity=0.296 Sum_probs=96.6 Q ss_pred EEEEECCCCCHHHHHHHHHHHHHHHCCCCCCEECCCEEE----EE--CCCCEEEEEECCCHHHHHHHHHHHHHCCCCEEE Q ss_conf 898623685044677788642221001231000121499----95--178438888516615789998666420680599 Q gi|254780787|r 386 VTIMGHVDHGKTSLLDAIRKADVAKGEIGGITQHIGAYQ----VA--YQGKNITFLDTPGHAAFYEMRARGARVTDIAVL 459 (884) Q Consensus 386 v~v~ghvd~GKt~lld~~r~~~~~~~e~ggitq~iga~~----~~--~~~~~~~~iDtPGh~~f~~~r~rg~~~~d~~il 459 (884) T Consensus 3 IvllGd~gVGKTsLi~rf~~~~F~--~~--y~~Tig~d~~~k~i~~~~~~v~l~IWDTaGqe~f~sl~~~yyr~a~~~il 78 (202) T cd04120 3 VIIIGSRGVGKTSLMRRFTDDTFC--EA--CKSGVGVDFKIKTVELRGKKIRLQIWDTAGQERFNSITSAYYRSAKGIIL 78 (202) T ss_pred EEEECCCCCCHHHHHHHHHCCCCC--CC--CCCCCCEEEEEEEEEECCEEEEEEEEECCCCCCCCCCHHHHHHHHCEEEE T ss_conf 999997997299999999549999--98--79976468899999999999999999798861245235788764144589 Q ss_pred EEECCCCCCHHHHHHHH----HHH---HCCCCEEEECCCCCCCCCCCCHHHHHHHCCCCCCCCCCCCCEEEEEEECCCCC Q ss_conf 99836674023577789----899---70994156123312443320002210000132000123474036311002477 Q gi|254780787|r 460 VLAADEEIMPQAIESIN----HAK---AADVSIIVAINKIDKLGADPQKVRMSLLKHDVFVESMGGDILDVEISAKNNLN 532 (884) Q Consensus 460 vv~~~~g~~~qt~e~~~----~~~---~~~~p~iva~nk~d~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 532 (884) T Consensus 79 VyDit~---~~SF~~l~~W~~~i~~~~~~~~~iiLVGNK~DL~~~R--~Vs~~e~~--~~A~~~-~~~~f~EtSAkt~~n 150 (202) T cd04120 79 VYDITK---KETFDDLPKWMKMIDKYASEDAELLLVGNKLDCETDR--EISRQQGE--KFAQQI-TGMRFCEASAKDNFN 150 (202) T ss_pred EEECCC---HHHHHHHHHHHHHHHHHCCCCCEEEEEEECCCCHHHC--CCCHHHHH--HHHHHC-CCCEEEECCCCCCCC T ss_conf 985688---8999999999999997466887189876536505317--87999999--999827-998899925899969 Q ss_pred CCCCCCCHH Q ss_conf 411221000 Q gi|254780787|r 533 LDKLLDAIL 541 (884) Q Consensus 533 ~~~~~~~~~ 541 (884) T Consensus 151 V~e~F~~l~ 159 (202) T cd04120 151 VDEIFLKLV 159 (202) T ss_pred HHHHHHHHH T ss_conf 899999999

HHsearch alignment for GI: 254780787 and conserved domain: cd04120