HHsearch alignment for GI: 254780233 and conserved domain: cd04123

>cd04123 Rab21 Rab21 subfamily. The localization and function of Rab21 are not clearly defined, with conflicting data reported. Rab21 has been reported to localize in the ER in human intestinal epithelial cells, with partial colocalization with alpha-glucosidase, a late endosomal/lysosomal marker. More recently, Rab21 was shown to colocalize with and affect the morphology of early endosomes. In Dictyostelium, GTP-bound Rab21, together with two novel LIM domain proteins, LimF and ChLim, has been shown to regulate phagocytosis. 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
Probab=99.19  E-value=1.3e-10  Score=88.97  Aligned_cols=156  Identities=16%  Similarity=0.186  Sum_probs=97.8

Q ss_pred             EEEEECCCCCCHHHHHHHHHHHCCCCCCCCCCCCEECCCCHHHHHCCCEEEEEEEEEEECCEEEEEECCCCCCCCHHHHH
Q ss_conf             49998546898778899999983961423220000038857798709606467999998997999972898754079999
Q gi|254780233|r   21 NIAIIAHVDHGKTTLVDELLKQSGVFRDNQRVSERVMDCNDLEKERGITILAKVTSIVWNDVRINIVDTPGHADFGGEVE  100 (624)
Q Consensus        21 NiaIiaHvDhGKTTL~d~LL~~sG~~~~~~~v~~~vmD~~~~EreRGITI~a~~~~~~~~~~~iNiiDTPGH~DF~gEVe  100 (624)
T Consensus         2 Ki~vvG~~~vGKTsli~r~~~--~~f~~~~~~--t----------i~~~~~~k~i~~~~~~~~l~iwDt~G~~~~~~~~~   67 (162)
T cd04123           2 KVVLLGEGRVGKTSLVLRYVE--NKFNEKHES--T----------TQASFFQKTVNIGGKRIDLAIWDTAGQERYHALGP   67 (162)
T ss_pred             EEEEECCCCCCHHHHHHHHHH--CCCCCCCCC--C----------CEEEEEEEEEEECCEEEEEEEEECCCCCCCCCCCH
T ss_conf             899999999679999999983--989987677--5----------26479999999999999999995899730355631


Q ss_pred             HHHHHHCEEEEEEECCCCCCHHHHHHHHH----HHHCCCCEEEEEECCCCCCCCHHHHHHHHHHHHHHCCCCHHHCCHHH
Q ss_conf             99874217899997687886478999999----99729978999975436674025689999988862267301104266
Q gi|254780233|r  101 RILCMVESVVVLVDAAEGPMPQTKFVVGK----ALKIGLRPIVVVNKVDRSDARADEVINEVFDLFSALDATDAQLDFPI  176 (624)
Q Consensus       101 r~l~~~DgaiLvVdA~eGv~~QT~~vl~~----A~~~~l~~IvvINKiDr~~a~~~~v~~ei~dlf~~l~a~de~ld~Pv  176 (624)
T Consensus        68 ~~~~~a~~~ilv~d~t~~~Sf~~i~~~~~~i~~~~~~~~~iilvgnK~Dl~~~r~v-~~~e~~~~a~~-------~~~~y  139 (162)
T cd04123          68 IYYRDADGAILVYDITDADSFQKVKKWIKELKQMRGNNISLVIVGNKIDLERQRVV-SKSEAEEYAKS-------VGAKH  139 (162)
T ss_pred             HHEECCCEEEEEEECCCHHHHHHHHHHHHHHHHHCCCCCCEEEECCCCCCHHHCCC-CHHHHHHHHHH-------CCCEE
T ss_conf             33011445799963899899999999999999876999746866332132540888-99999999998-------29989


Q ss_pred             HHHHHHCCEECCCCCCCCCCCCHHHHHHHHCCC
Q ss_conf             887886591646742233486413555321024
Q gi|254780233|r  177 LYGSGRFGWMSDSSDGSRDQGMVPLLNLIVDHV  209 (624)
Q Consensus       177 ~~~Sa~~G~~~~~~~~~~~~gl~~Lld~Ii~~i  209 (624)
T Consensus       140 ~e~Sak~g-----------~nV~e~F~~l~~~i  161 (162)
T cd04123         140 FETSAKTG-----------KGIEELFLSLAKRM  161 (162)
T ss_pred             EEEECCCC-----------CCHHHHHHHHHHHH
T ss_conf             99812788-----------19899999999986