HHsearch alignment for GI: 254780226 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=98.23  E-value=3.5e-05  Score=54.69  Aligned_cols=146  Identities=18%  Similarity=0.232  Sum_probs=85.8

Q ss_pred             CEEEEEECCCCCHHHHHHHHHCCCCCCCCCCCCCCCCCCEE--EEECCCHHHHHHHHHCCCCEEEEEEEEEEECCCCCCC
Q ss_conf             24867528887888999987404898736668674488337--9976855587776421865023357999851223543
Q gi|254780226|r    3 FKCGIIGLPNVGKSTLFNALTRTASAQAANYPFCTIEPNSG--EVAVPDPRMHKLAEIAESKDLVPTRMSFVDIAGLVRG   80 (367)
Q Consensus         3 ~kiGlvG~pn~GKST~f~alT~~~~~~~~~ypFtTi~pn~g--~~~v~d~~~~~l~~~~~~~~~~p~~i~~iDvaGLv~g   80 (367)
T Consensus         1 ~Ki~vvG~~~vGKTsli~r~~~~--~f~~~~~~t-i~~~~~~k~i~~------------~~~---~~~l~iwDt~G~~~-   61 (162)
T cd04123           1 FKVVLLGEGRVGKTSLVLRYVEN--KFNEKHEST-TQASFFQKTVNI------------GGK---RIDLAIWDTAGQER-   61 (162)
T ss_pred             CEEEEECCCCCCHHHHHHHHHHC--CCCCCCCCC-CEEEEEEEEEEE------------CCE---EEEEEEEECCCCCC-
T ss_conf             98999999996799999999839--899876775-264799999999------------999---99999995899730-


Q ss_pred             CCCCCCCHHHHHHHHHCCCEEEEEECCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCHHHHH
Q ss_conf             22246632899998730374788501234542113457767321578898888764332224577777875203204677
Q gi|254780226|r   81 ASKGEGLGNQFLAHIREVDAIIHVLRCFKDENIIHVEGRIDPINDIETIETELMLSDLERLERLFEKNKKYRNHKSEEIV  160 (367)
Q Consensus        81 A~~G~GlGN~FL~~ir~aDalihVVdaf~~~~v~~~~g~~DP~~Di~~i~~EL~l~dle~lek~~~k~~k~~~~~~~~~~  160 (367)
T Consensus        62 ---~~~~~~~~---~~~a~~~ilv~d~t~~~S-------------f~~------------i~-~~---------------   94 (162)
T cd04123          62 ---YHALGPIY---YRDADGAILVYDITDADS-------------FQK------------VK-KW---------------   94 (162)
T ss_pred             ---CCCCCHHH---EECCCEEEEEEECCCHHH-------------HHH------------HH-HH---------------
T ss_conf             ---35563133---011445799963899899-------------999------------99-99---------------


Q ss_pred             HHHHHHHHHHHHHHCCCCCHHHHHHCCHHHHHHHHHHHHHHHCCCHHEECCCHHHHCCCHHHHHHHHHHHHHCCCCCCCC
Q ss_conf             78999998899887587410344313267776210235764101001003430111010134678778864369840332
Q gi|254780226|r  161 LLQSIISSSLRLIEEGKPVRSLLESLDSDAIPIFKSLNLLTAKPILYICNVSEHDCKKGNIYTEAVQRLASQQNAEMIII  240 (367)
Q Consensus       161 ~~~~~l~~~~~~Le~~~~~r~~~~~~~~de~~~l~~~~llt~KP~iivaNk~e~~~~~~n~~~e~i~~l~~~~~~~~i~i  240 (367)
T Consensus        95 ------------~~~---i~~~-----------~-~----~~~~iilvgnK~Dl~~~-r~v~~~e~~~~a~~~~~~y~e~  142 (162)
T cd04123          95 ------------IKE---LKQM-----------R-G----NNISLVIVGNKIDLERQ-RVVSKSEAEEYAKSVGAKHFET  142 (162)
T ss_pred             ------------HHH---HHHH-----------C-C----CCCCEEEECCCCCCHHH-CCCCHHHHHHHHHHCCCEEEEE
T ss_conf             ------------999---9987-----------6-9----99746866332132540-8889999999999829989998


Q ss_pred             CCHHHH
Q ss_conf             100246
Q gi|254780226|r  241 SAAIEA  246 (367)
Q Consensus       241 sa~~E~  246 (367)
T Consensus       143 Sak~g~  148 (162)
T cd04123         143 SAKTGK  148 (162)
T ss_pred             ECCCCC
T ss_conf             127881