HHsearch alignment for GI: 254780263 and conserved domain: cd00879

>cd00879 Sar1 Sar1 subfamily. Sar1 is an essential component of COPII vesicle coats involved in export of cargo from the ER. The GTPase activity of Sar1 functions as a molecular switch to control protein-protein and protein-lipid interactions that direct vesicle budding from the ER. Activation of the GDP to the GTP-bound form of Sar1 involves the membrane-associated guanine nucleotide exchange factor (GEF) Sec12. Sar1 is unlike all Ras superfamily GTPases that use either myristoyl or prenyl groups to direct membrane association and function, in that Sar1 lacks such modification. Instead, Sar1 contains a unique nine-amino-acid N-terminal extension. This extension contains an evolutionarily conserved cluster of bulky hydrophobic amino acids, referred to as the Sar1-N-terminal activation recruitment (STAR) motif. The STAR motif mediates the recruitment of Sar1 to ER membranes and facilitates its interaction with mammalian Sec12 GEF leading to activation.
Probab=99.17  E-value=2.2e-10  Score=83.47  Aligned_cols=146  Identities=14%  Similarity=0.150  Sum_probs=90.6

Q ss_pred             CCEEEEEEEECCCCCHHHHHHHHHHHHHHHHHCCCCCCCCHHHHHCCCEEEEEEEEEECCCEEEEEEECCCCHHHHHHHH
Q ss_conf             88279999904689887899999987644420013126868698629206378999821990899984787302467798
Q gi|254780263|r   10 KESLGLSTIGHVDHGKTTLTAAITKYYSEEKKEYGDIDSAPEEKLRGITIATAHVSYETDKRFYSHIDCPGHADYVKNMI   89 (392)
Q Consensus        10 k~~~ni~~iGhvd~GKSTL~~~L~~~~~~~~~~~~~~D~~~~E~~rGiTi~~~~~~~~~~~~~i~iiD~PGH~~f~~~mi   89 (392)
T Consensus        17 ~k~~kIlilGld~aGKTTil~~l~~~--~-------~~~------~~PT~Gfn~e~i~~~~~~~~~wDvgG~~~~R~lW~   81 (190)
T cd00879          17 NKEAKILFLGLDNAGKTTLLHMLKDD--R-------LAQ------HVPTLHPTSEELTIGNIKFKTFDLGGHEQARRLWK   81 (190)
T ss_pred             CCCCEEEEEECCCCCHHHHHHHHHCC--C-------CCE------ECCCCCCCEEEEEECCEEEEEEECCCCCCCCCCHH
T ss_conf             77048999906999889999998079--9-------531------52655874599998999999998999845554388


Q ss_pred             HHHHCCCCEEEEECCCC-CCCCCHHHHHHHH----HHCCCCCEEEEECCCCCCCC---HHHHHHCCCCCCEEEEEEEE--
Q ss_conf             77400233145201234-4332106778888----63187602331002333561---22211012321001110145--
Q gi|254780263|r   90 TGATQADGAILVCAAED-GPKPQTREHILLA----RQIGISSIVVYMNKVDAVDD---DELLDISEYEIRDLLKEHKY--  159 (392)
Q Consensus        90 ~g~~~~D~ailvVda~~-G~~~QT~eh~~l~----~~lgi~~iIv~iNKmD~v~~---~~~~~~i~~~i~~~l~~~~~--  159 (392)
T Consensus        82 ~Y~~~~~~iIfVVDssD~~r~~eak~~L~~lL~~~~l~~~P-lLIlaNK~Dl~~a~~~~ei~~~L--~L~~~~~~~~~~~  158 (190)
T cd00879          82 DYFPEVDGIVFLVDAADPERFQESKEELDSLLSDEELANVP-FLILGNKIDLPGAVSEEELRQAL--GLYGTTTGKGVSL  158 (190)
T ss_pred             HHHHCCCEEEEEEECCCHHHHHHHHHHHHHHHHHHHHCCCC-EEEEEECCCCCCCCCHHHHHHHC--CCCCCCCCCCCCC
T ss_conf             88431137999997767789999999999998555006980-89998666776798999999883--9842015544334


Q ss_pred             ----EEEEECCCCEEEEE
Q ss_conf             ----32210233114676
Q gi|254780263|r  160 ----SDDTPIIRGSALCA  173 (392)
Q Consensus       160 ----~~~~pii~~sa~~g  173 (392)
T Consensus       159 ~~~~~r~~~i~~csA~tG  176 (190)
T cd00879         159 KVSGIRPIEVFMCSVVKR  176 (190)
T ss_pred             CCCCCCCEEEEEEEEECC
T ss_conf             545776149996550679