HHsearch alignment for GI: 254780388 and conserved domain: cd01470

>cd01470 vWA_complement_factors Complement factors B and C2 are two critical proteases for complement activation. They both contain three CCP or Sushi domains, a trypsin-type serine protease domain and a single VWA domain with a conserved metal ion dependent adhesion site referred commonly as the MIDAS motif. Orthologues of these molecules are found from echinoderms to chordates. During complement activation, the CCP domains are cleaved off, resulting in the formation of an active protease that cleaves and activates complement C3. Complement C2 is in the classical pathway and complement B is in the alternative pathway. The interaction of C2 with C4 and of factor B with C3b are both dependent on Mg2+ binding sites within the VWA domains and the VWA domain of factor B has been shown to mediate the binding of C3. This is consistent with the common inferred function of VWA domains as magnesium-dependent protein interaction domains.
Probab=99.36  E-value=3e-11  Score=90.26  Aligned_cols=156  Identities=16%  Similarity=0.183  Sum_probs=94.0

Q ss_pred             HHHHHHHHHCCCCCCCCCCCCCEEEEEEECCCCCCCCCCCCCHHHHHHHHHHHHHHCCC-----CCCCCCCHHHHHHHHH
Q ss_conf             77766522112346775666520121100677665565576812100566665641256-----7777764588999998
Q gi|254780388|r  274 VRDALASVIRSIKKIDNVNDTVRMGATFFNDRVISDPSFSWGVHKLIRTIVKTFAIDEN-----EMGSTAINDAMQTAYD  348 (458)
Q Consensus       274 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~i~~~~-----~~g~T~~~~gl~~g~~  348 (458)
T Consensus        21 ~k~Fv~~lv~~~~~~~~---~~rvgvv~ys~~~~~~f~l~~~~~-~~~~~~~~~i~~i~y~~~~~~~gT~t~~AL~~~~~   96 (198)
T cd01470          21 AKNAIKTLIEKISSYEV---SPRYEIISYASDPKEIVSIRDFNS-NDADDVIKRLEDFNYDDHGDKTGTNTAAALKKVYE   96 (198)
T ss_pred             HHHHHHHHHHHHCCCCC---CCEEEEEEECCCCEEEEECCCCCC-CCHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHH
T ss_conf             99999999998446687---753899981588538997157666-68999999998460335778864689999999999


Q ss_pred             HHCCCCCCCCCCCCCCCCCCEEEEEEECCCCCCCCCH------------HHHHHHHHHHCCCEEEEEEECCCCCCCCHHH
Q ss_conf             6236666544445667775069999960668888540------------8999999998796899999437887431178
Q gi|254780388|r  349 TIISSNEDEVHRMKNNLEAKKYIVLLTDGENTQDNEE------------GIAICNKAKSQGIRIMTIAFSVNKTQQEKAR  416 (458)
Q Consensus       349 ~Ls~~~~~~~~~~~~~~~~~K~iil~TDG~n~~~~~~------------~~~~C~~~K~~gI~IytI~f~~~~~~~~~~~  416 (458)
T Consensus        97 ~~~~~~~~~~---~~~~~v~~v~illTDG~sn~g~~P~~~~~~~~~~~~~~~~a~~~r~~gi~ifaiGVG~~~d-----~  168 (198)
T cd01470          97 RMALEKVRNK---EAFNETRHVIILFTDGKSNMGGSPLPTVDKIKNLVYKNNKSDNPREDYLDVYVFGVGDDVN-----K  168 (198)
T ss_pred             HHHHHHHCCC---CCCCCCCEEEEEECCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHCCCEEEEEEECCCCC-----H
T ss_conf             8655530466---4445675599997378545789933678887776641014567887394799999666159-----9


Q ss_pred             HHHHHHCCC--C--CEEEECCHHHHHHHH
Q ss_conf             999860689--8--378829989999999
Q gi|254780388|r  417 YFLSNCASP--N--SFFEANSTHELNKIF  441 (458)
Q Consensus       417 ~~lk~CAs~--~--~yy~a~~~~eL~~aF  441 (458)
T Consensus       169 ~eL~~IAS~~~~e~hvf~v~df~~L~~i~  197 (198)
T cd01470         169 EELNDLASKKDNERHFFKLKDYEDLQEVF  197 (198)
T ss_pred             HHHHHHHCCCCCCCEEEEECCHHHHHHHH
T ss_conf             99999857999871699968999999863