HHsearch alignment for GI: 254780321 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=99.37 E-value=2e-11 Score=96.11 Aligned_cols=152 Identities=16% Similarity=0.243 Sum_probs=104.4
Q ss_pred HHCEEEEEECCCCCCHHHHHHHHHHHCCCCCCCCCCCEEECCCHHHHHHCCEEEEEEEEEEEECCCCCEEEEEEEECCCC
Q ss_conf 25317999801389877889999998298054444311305867798719505232799997437884389999617873
Q gi|254780321|r 9 SRIRNFSIVAHIDHGKSTLADRFIQHCRGLTEREMSSQVLDNMDIERERGITIKAQTVRLNYTSTDAKDYQLNLIDTPGH 88 (606)
Q Consensus 9 ~~IRN~~IiaHvDhGKTTL~d~lL~~tg~i~~~~~~~~vlD~~~~EreRGITIka~~~~~~~~~~~~~~y~iNlIDTPGH 88 (606)
T Consensus 17 ~k~~kIlilGld~aGKTTil~~l~--~~~~~~---------~~-------PT~Gfn~e~i~~-----~~~~~~~wDvgG~ 73 (190)
T cd00879 17 NKEAKILFLGLDNAGKTTLLHMLK--DDRLAQ---------HV-------PTLHPTSEELTI-----GNIKFKTFDLGGH 73 (190)
T ss_pred CCCCEEEEEECCCCCHHHHHHHHH--CCCCCE---------EC-------CCCCCCEEEEEE-----CCEEEEEEECCCC
T ss_conf 770489999069998899999980--799531---------52-------655874599998-----9999999989998
Q ss_pred CHHHHHHHHHHHHCCEEEEEEECCCCC-CHHHHHHHHHHHH----CCCCEEEEECCCCCCCCCCCCHHHHHHHHHHHH--
Q ss_conf 002799999997302689999868788-6558999999997----099679983267887532113388877555322--
Q gi|254780321|r 89 VDFTYEVSRSLSACEGSLLVVDATQGV-EAQTLANVYQAID----NNHEIITVLNKADLPSADPDRVKKQIEETIGIS-- 161 (606)
Q Consensus 89 ~DF~~EV~r~l~a~dgaiLvVdA~~Gv-q~QT~~~~~~A~~----~~l~~I~viNKiD~~~A~~e~v~~ei~~~~g~~-- 161 (606)
T Consensus 74 ~~~R~lW~~Y~~~~~~iIfVVDssD~~r~~eak~~L~~lL~~~~l~~~PlLIlaNK~Dl~~a~~---~~ei~~~L~L~~~ 150 (190)
T cd00879 74 EQARRLWKDYFPEVDGIVFLVDAADPERFQESKEELDSLLSDEELANVPFLILGNKIDLPGAVS---EEELRQALGLYGT 150 (190)
T ss_pred CCCCCCHHHHHHCCCEEEEEEECCCHHHHHHHHHHHHHHHHHHHHCCCCEEEEEECCCCCCCCC---HHHHHHHCCCCCC
T ss_conf 4555438888431137999997767789999999999998555006980899986667767989---9999988398420
Q ss_pred --------------HHHHHHHHHHCCCCCCHHHHHHHHH
Q ss_conf --------------3210001110022320067877632
Q gi|254780321|r 162 --------------TEDALLVSAKTGEGIPLLLERIVQQ 186 (606)
Q Consensus 162 --------------~~~ii~vSAktG~GV~~LLd~Iv~~ 186 (606)
T Consensus 151 ~~~~~~~~~~~~~r~~~i~~csA~tG~Gl~egl~WLs~~ 189 (190)
T cd00879 151 TTGKGVSLKVSGIRPIEVFMCSVVKRQGYGEAFRWLSQY 189 (190)
T ss_pred CCCCCCCCCCCCCCCEEEEEEEEECCCCHHHHHHHHHHH
T ss_conf 155443345457761499965506796828999999854