HHsearch alignment for GI: 254780648 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=99.64  E-value=5e-16  Score=116.99  Aligned_cols=155  Identities=17%  Similarity=0.179  Sum_probs=110.7

Q ss_pred             EEEEECCCCCCCEEEEEECCCCCHHHHHHHCCCEEC-CEEEEECC--EEEEEECCCCCCCCCCCCCCCHHHHHHHHHHHH
Q ss_conf             124421677753035410145401212110000001-02663298--689982264212473116775123443333357
Q gi|254780648|r  162 IGIIGLPNAGKSTFLASVTRAKPKIADYPFTTLYPN-LGIVKEGY--KEFILADIPGIIKNAHQGAGIGDRFLKHTERTH  238 (335)
Q Consensus       162 VglVG~PNaGKSTLln~ls~ak~kIa~ypFTT~~P~-lGvv~~~~--~~~~i~D~PGlIegA~~~~glG~~FLrhIer~~  238 (335)
T Consensus         3 i~vvG~~~vGKTsli~r~~~~~f-~~~~~~ti~~~~~~k~i~~~~~~~~l~iwDt~G~~~----~~~~~~~---~~~~a~   74 (162)
T cd04123           3 VVLLGEGRVGKTSLVLRYVENKF-NEKHESTTQASFFQKTVNIGGKRIDLAIWDTAGQER----YHALGPI---YYRDAD   74 (162)
T ss_pred             EEEECCCCCCHHHHHHHHHHCCC-CCCCCCCCEEEEEEEEEEECCEEEEEEEEECCCCCC----CCCCCHH---HEECCC
T ss_conf             99999999679999999983989-987677526479999999999999999995899730----3556313---301144


Q ss_pred             HHHHHCCCCCCCHHHHHHHHHHHHHHHHHHHCCCCEEEEEECCCCCCHHHH-HHHHHHHHHHCCCCEEEEECCCCCCHHH
Q ss_conf             887520222211013466678998777667505988999974658998899-9999999986299489998887889999
Q gi|254780648|r  239 VLLHIVSALEENVQAAYQCILDELSAYNSELRKKIEIVGLSQIDTVDSDTL-ARKKNELATQCGQVPFEFSSITGHGIPQ  317 (335)
Q Consensus       239 vLl~VVD~s~~d~~~~~~~I~~EL~~y~~~L~~Kp~IIVlNKiDl~~~e~~-~~~~~~l~~~~~~~vi~ISA~tg~GI~e  317 (335)
T Consensus        75 ~~ilv~d~t~~~Sf~~i~~~~~~i~~~~~--~~~~iilvgnK~Dl~~~r~v~~~e~~~~a~~~~~~y~e~Sak~g~nV~e  152 (162)
T cd04123          75 GAILVYDITDADSFQKVKKWIKELKQMRG--NNISLVIVGNKIDLERQRVVSKSEAEEYAKSVGAKHFETSAKTGKGIEE  152 (162)
T ss_pred             EEEEEEECCCHHHHHHHHHHHHHHHHHCC--CCCCEEEECCCCCCHHHCCCCHHHHHHHHHHCCCEEEEEECCCCCCHHH
T ss_conf             57999638998999999999999998769--9974686633213254088899999999998299899981278819899


Q ss_pred             HHHHHHHHH
Q ss_conf             999999999
Q gi|254780648|r  318 ILECLHDKI  326 (335)
Q Consensus       318 L~~~I~e~L  326 (335)
T Consensus       153 ~F~~l~~~i  161 (162)
T cd04123         153 LFLSLAKRM  161 (162)
T ss_pred             HHHHHHHHH
T ss_conf             999999986