HHsearch alignment for GI: 254780263 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=98.94  E-value=1.1e-09  Score=79.06  Aligned_cols=142  Identities=22%  Similarity=0.156  Sum_probs=82.4

Q ss_pred             EEEEEECCCCCHHHHHHHHHHHHHHHHHCCCCCCCCHHHHHC--CCEEEEEEEEEECCCEEEEEEECCCCHHHHHHHHHH
Q ss_conf             999990468988789999998764442001312686869862--920637899982199089998478730246779877
Q gi|254780263|r   14 GLSTIGHVDHGKTTLTAAITKYYSEEKKEYGDIDSAPEEKLR--GITIATAHVSYETDKRFYSHIDCPGHADYVKNMITG   91 (392)
Q Consensus        14 ni~~iGhvd~GKSTL~~~L~~~~~~~~~~~~~~D~~~~E~~r--GiTi~~~~~~~~~~~~~i~iiD~PGH~~f~~~mi~g   91 (392)
T Consensus         2 Ki~vvG~~~vGKTsli~r~~~~~------------f~~~~~~ti~~~~~~k~i~~~~~~~~l~iwDt~G~~~~~~~~~~~   69 (162)
T cd04123           2 KVVLLGEGRVGKTSLVLRYVENK------------FNEKHESTTQASFFQKTVNIGGKRIDLAIWDTAGQERYHALGPIY   69 (162)
T ss_pred             EEEEECCCCCCHHHHHHHHHHCC------------CCCCCCCCCEEEEEEEEEEECCEEEEEEEEECCCCCCCCCCCHHH
T ss_conf             89999999967999999998398------------998767752647999999999999999999589973035563133


Q ss_pred             HHCCCCEEEEECCCCCCCCCHHHHH--HHHHH--CCCCCEEEEECCCCCCCCHHHHHHCCCCCCEEEEEEEEEEEEECCC
Q ss_conf             4002331452012344332106778--88863--1876023310023335612221101232100111014532210233
Q gi|254780263|r   92 ATQADGAILVCAAEDGPKPQTREHI--LLARQ--IGISSIVVYMNKVDAVDDDELLDISEYEIRDLLKEHKYSDDTPIIR  167 (392)
Q Consensus        92 ~~~~D~ailvVda~~G~~~QT~eh~--~l~~~--lgi~~iIv~iNKmD~v~~~~~~~~i~~~i~~~l~~~~~~~~~pii~  167 (392)
T Consensus        70 ~~~a~~~ilv~d~t~~~Sf~~i~~~~~~i~~~~~~~~~-iilvgnK~Dl~~~r~---v~~~e~~~~a~~~----~~~y~e  141 (162)
T cd04123          70 YRDADGAILVYDITDADSFQKVKKWIKELKQMRGNNIS-LVIVGNKIDLERQRV---VSKSEAEEYAKSV----GAKHFE  141 (162)
T ss_pred             EECCCEEEEEEECCCHHHHHHHHHHHHHHHHHCCCCCC-EEEECCCCCCHHHCC---CCHHHHHHHHHHC----CCEEEE
T ss_conf             01144579996389989999999999999987699974-686633213254088---8999999999982----998999


Q ss_pred             CEEEEEEE
Q ss_conf             11467641
Q gi|254780263|r  168 GSALCALQ  175 (392)
Q Consensus       168 ~sa~~g~~  175 (392)
T Consensus       142 ~Sak~g~n  149 (162)
T cd04123         142 TSAKTGKG  149 (162)
T ss_pred             EECCCCCC
T ss_conf             81278819