HHsearch alignment for GI: 255764471 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=99.58  E-value=9.7e-15  Score=118.27  Aligned_cols=146  Identities=22%  Similarity=0.266  Sum_probs=99.1

Q ss_pred             EEEEEECCCCCCHHHHHHHHHCCCEEEECCCCCCEEEEEEEEEEECCEEEEEEECCCCCCCCHHHHHHHHHHHHHHHHHH
Q ss_conf             08999718988788899998588501025898530223899999899899999658842076368999999999999987
Q gi|255764471|r    3 YTIAIVGAPNVGKSTLFNRLVKKKMAVVGNHPGITRDRLYGQAIINGVIFNIVDTAGIADGKNCSIAKQMNDQTELAINE   82 (470)
Q Consensus         3 ~~iaivG~pNvGKStL~N~l~~~~~aiv~~~~g~Trd~~~~~~~~~~~~~~liDT~G~~~~~~~~~~~~i~~~~~~ai~~   82 (470)
T Consensus        20 ~kIlilGld~aGKTTil~~l~~~~~~~~~PT~Gf----n~e~i~~~~~~~~~wDvgG~~~-----~R~----lW~~Y~~~   86 (190)
T cd00879          20 AKILFLGLDNAGKTTLLHMLKDDRLAQHVPTLHP----TSEELTIGNIKFKTFDLGGHEQ-----ARR----LWKDYFPE   86 (190)
T ss_pred             CEEEEEECCCCCHHHHHHHHHCCCCCEECCCCCC----CEEEEEECCEEEEEEECCCCCC-----CCC----CHHHHHHC
T ss_conf             4899990699988999999807995315265587----4599998999999998999845-----554----38888431


Q ss_pred             CCEEEEEECCCCCC--CHHHHHHHHHHH---CCCCCCCCCHHHHCCCHHHH--HHHHHHHHCCC----------------
Q ss_conf             79899997598877--623445553321---02332222056522301210--01245531222----------------
Q gi|255764471|r   83 AHLILFLIDSKAGI--TPYDHAITSFLR---KKNIPIIIVSNKMDTRIAQR--NFYEIYSLDFK----------------  139 (470)
Q Consensus        83 aD~il~vvD~~~g~--~~~D~~i~~~lr---~~~~~~ilv~NK~D~~~~~~--~~~e~~~lg~~----------------  139 (470)
T Consensus        87 ~~~iIfVVDssD~~r~~eak~~L~~lL~~~~l~~~PlLIlaNK~Dl~~a~~~~ei~~--~L~L~~~~~~~~~~~~~~~~r  164 (190)
T cd00879          87 VDGIVFLVDAADPERFQESKEELDSLLSDEELANVPFLILGNKIDLPGAVSEEELRQ--ALGLYGTTTGKGVSLKVSGIR  164 (190)
T ss_pred             CCEEEEEEECCCHHHHHHHHHHHHHHHHHHHHCCCCEEEEEECCCCCCCCCHHHHHH--HCCCCCCCCCCCCCCCCCCCC
T ss_conf             137999997767789999999999998555006980899986667767989999998--839842015544334545776


Q ss_pred             --CCEEEHHHCCCCCHHHHHHHHHHH
Q ss_conf             --201001110222014799999986
Q gi|255764471|r  140 --EIVEISAEHDLGTSELHSVIFKIF  163 (470)
Q Consensus       140 --~~i~iSA~~g~Gi~~L~~~i~~~~  163 (470)
T Consensus       165 ~~~i~~csA~tG~Gl~egl~WLs~~l  190 (190)
T cd00879         165 PIEVFMCSVVKRQGYGEAFRWLSQYL  190 (190)
T ss_pred             CEEEEEEEEECCCCHHHHHHHHHHHC
T ss_conf             14999655067968289999998549