HHsearch alignment for GI: 254780809 and conserved domain: cd04166

>cd04166 CysN_ATPS CysN_ATPS subfamily. CysN, together with protein CysD, form the ATP sulfurylase (ATPS) complex in some bacteria and lower eukaryotes. ATPS catalyzes the production of ATP sulfurylase (APS) and pyrophosphate (PPi) from ATP and sulfate. CysD, which catalyzes ATP hydrolysis, is a member of the ATP pyrophosphatase (ATP PPase) family. CysN hydrolysis of GTP is required for CysD hydrolysis of ATP; however, CysN hydrolysis of GTP is not dependent on CysD hydrolysis of ATP. CysN is an example of lateral gene transfer followed by acquisition of new function. In many organisms, an ATPS exists which is not GTP-dependent and shares no sequence or structural similarity to CysN.
Probab=98.85  E-value=4.4e-09  Score=82.80  Aligned_cols=109  Identities=23%  Similarity=0.218  Sum_probs=72.8

Q ss_pred             CEEEECCCCCCHHHHHHHHHCCHH------------------------CCCCC------CCCCCEEECCCCCCCCCEEEE
Q ss_conf             024311466318889999855200------------------------02345------468721100012456835899
Q gi|254780809|r  221 KIVILGHSNAGKSSLFNALAKKDV------------------------AIVTD------IPGTTRDVLTIDLDLEGYLVK  270 (440)
Q Consensus       221 ~v~i~G~pN~GKSSL~N~L~~~~~------------------------aIVs~------~~GTTRD~i~~~~~i~g~~~~  270 (440)
T Consensus         1 ~~vv~GHVD~GKSTL~g~LL~~~g~i~~~~~~~~~~~~~~~~~~~~~~a~~lD~~~~ErerGiTId~~~~~f~~~~~~~~   80 (208)
T cd04166           1 RFLTCGSVDDGKSTLIGRLLYDSKSIFEDQLAALESKSCGTGGEPLDLALLVDGLQAEREQGITIDVAYRYFSTPKRKFI   80 (208)
T ss_pred             CEEEEECCCCCHHHHHHHHHHHCCCCCHHHHHHHHHHHHHCCCCCHHHHHHCCCCHHHHHCCCCEEEEEEEEEECCCEEE
T ss_conf             96999748898889999999982996789999999887541676300034346868788269794105899981992699


Q ss_pred             EEECCHHCCCCHHHHHHHHHHHHHHHHHHCCEEECCCCCCHHH------HH---HHCCCCCCCCCCCCCCCCCCCH
Q ss_conf             9508100024103566667888998503011020135898566------34---3128985322223334465420
Q gi|254780809|r  271 ISDTAGIRETDDIVEKEGIKRTFLEVENADLILLLKEINSKKE------IS---FPKNIDFIFIGTKSDLYSTYTE  337 (440)
Q Consensus       271 l~DTaGir~t~d~IE~~GI~ra~~~i~~aDlil~v~D~~~~~~------~~---~~~~~~~i~V~NK~Dl~~~~~~  337 (440)
T Consensus        81 iiDtPGH~df--------i~nmi~gas~aD~ailVVda~~G~~~QT~eh~~~~~~lgi~~iIv~vNKmD~v~~~e~  148 (208)
T cd04166          81 IADTPGHEQY--------TRNMVTGASTADLAILLVDARKGVLEQTRRHSYILSLLGIRHVVVAVNKMDLVDYSEE  148 (208)
T ss_pred             EEECCCCHHH--------HHHHHHHHHHCCEEEEEEECCCCCCHHHHHHHHHHHHCCCCEEEEEEECCCCCCCCHH
T ss_conf             9878962889--------9999999863774799997588872789999999997499839999988576899989