>sp|A7I912|CCA_METB6 CCA-adding enzyme OS=Methanoregula boonei GN=cca MSGRLPFEEQLLSGQLRPSAEEREYIAGVARRLLDAINASGKATGMVVGSIARNTWVKGD RDLDVFLLFSPEMPREALETEGLALARSIARAFTPMFHEKYAEHPYINANVEGIDVDLVP CYNVASAEHIQSAVDRTPFHTRYITDKINGLTDDVLLLKQFAKAGGIYGSDQMTEGFSGY LCELLVLHYGGFAPLLAAAAEWRPPVIIDIGKHAAKKFDEPLVVIDPVDPRRNVAAAVSL DRMAEFVELARGYRDAPSEEFFRIRKEYPCCPADLAALLASRGTSLYAVTFATPPFIEEI VVPQLKRSTGAISDLLDRSGFAVHHAHYRMGPGRCMLLFELIIDELPPIRRHEGPPVWNR VNAEKFREKYRTSPLPGPFIENGRYVTEVPREFTRAGDLISSPAILSVGTGRHVRESLGK DWCVLEGADCWQEEFSGFIATFFSRRSPLVRIERDRPGRE