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