HHsearch alignment for GI: 254780809 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=99.39 E-value=1.6e-12 Score=106.72 Aligned_cols=133 Identities=23% Similarity=0.257 Sum_probs=95.3
Q ss_pred HHCCCEEEECCCCCCHHHHHHHHHCCHHCCCCCCCCCCEEECCCCCCCCCEEEEEEECCHHCCCCHHHHHHHHHHHHHHH
Q ss_conf 20230243114663188899998552000234546872110001245683589995081000241035666678889985
Q gi|254780809|r 217 RNGYKIVILGHSNAGKSSLFNALAKKDVAIVTDIPGTTRDVLTIDLDLEGYLVKISDTAGIRETDDIVEKEGIKRTFLEV 296 (440)
Q Consensus 217 ~~g~~v~i~G~pN~GKSSL~N~L~~~~~aIVs~~~GTTRD~i~~~~~i~g~~~~l~DTaGir~t~d~IE~~GI~ra~~~i 296 (440)
T Consensus 17 ~k~~kIlilGld~aGKTTil~~l~~~~~~~~~P----T~Gfn~e~i~~~~~~~~~wDvgG~~~~R~--------lW~~Y~ 84 (190)
T cd00879 17 NKEAKILFLGLDNAGKTTLLHMLKDDRLAQHVP----TLHPTSEELTIGNIKFKTFDLGGHEQARR--------LWKDYF 84 (190)
T ss_pred CCCCEEEEEECCCCCHHHHHHHHHCCCCCEECC----CCCCCEEEEEECCEEEEEEECCCCCCCCC--------CHHHHH
T ss_conf 770489999069998899999980799531526----55874599998999999998999845554--------388884
Q ss_pred HHHCCEEECCCCCCHHHHH-------------HHCCCCCCCCCCCCCCCCCCCHHH------------------------
Q ss_conf 0301102013589856634-------------312898532222333446542000------------------------
Q gi|254780809|r 297 ENADLILLLKEINSKKEIS-------------FPKNIDFIFIGTKSDLYSTYTEEY------------------------ 339 (440)
Q Consensus 297 ~~aDlil~v~D~~~~~~~~-------------~~~~~~~i~V~NK~Dl~~~~~~~~------------------------ 339 (440)
T Consensus 85 ~~~~~iIfVVDssD~~r~~eak~~L~~lL~~~~l~~~PlLIlaNK~Dl~~a~~~~ei~~~L~L~~~~~~~~~~~~~~~~r 164 (190)
T cd00879 85 PEVDGIVFLVDAADPERFQESKEELDSLLSDEELANVPFLILGNKIDLPGAVSEEELRQALGLYGTTTGKGVSLKVSGIR 164 (190)
T ss_pred HCCCEEEEEEECCCHHHHHHHHHHHHHHHHHHHHCCCCEEEEEECCCCCCCCCHHHHHHHCCCCCCCCCCCCCCCCCCCC
T ss_conf 31137999997767789999999999998555006980899986667767989999998839842015544334545776
Q ss_pred ---HHHHHHHHHHHHHHHHHHHHHH
Q ss_conf ---0013333232358999999999
Q gi|254780809|r 340 ---DHLISSFTGEGLEELINKIKSI 361 (440)
Q Consensus 340 ---~~~ISaktg~Gi~~L~~~I~~~ 361 (440)
T Consensus 165 ~~~i~~csA~tG~Gl~egl~WLs~~ 189 (190)
T cd00879 165 PIEVFMCSVVKRQGYGEAFRWLSQY 189 (190)
T ss_pred CEEEEEEEEECCCCHHHHHHHHHHH
T ss_conf 1499965506796828999999854