The carbonic anhydrases(CAs)are a group of enzymes that play an important role in the absorption and transportation of CO_(2)in Saccharina japonica.They are encoded by a superfamily of genes with seven subtypes that a...The carbonic anhydrases(CAs)are a group of enzymes that play an important role in the absorption and transportation of CO_(2)in Saccharina japonica.They are encoded by a superfamily of genes with seven subtypes that are unrelated in sequence but share conserved function in catalyzing the reversible conversion of CO_(2)and HCO_(3)^(-).Here we have characterized the CA members in the transcriptome of S.japonica using Single-molecule real-time(SMRT)sequencing technology.Approximately 9830.4 megabases from 5,028,003 quality subreads were generated,and they were assembled into 326,512 full-length non-chimeric(FLNC)reads,with an average flnc read length of 2181 bp.After removing redundant sequences,79,010 unique transcripts were obtained of which 38,039 transcripts were successfully annotated.From the full-length transcriptome,we have identified 7 full-length cDNA sequences for CA genes(4α-CAs,1β-CAs and 2γ-CAs)and assessed for their potential functions based on phylogenetic analysis.Characterizations of CAs will provide the ground for future studies to determine the involvement of CAs in inorganic carbon absorption and transportation in S.japonica.展开更多
基金This research was supported by Shanghai Universities Peak Discipline Project of Aquaculture and“Double First-Class Initiative”program for its First-Class Discipline of aquaculture.
文摘The carbonic anhydrases(CAs)are a group of enzymes that play an important role in the absorption and transportation of CO_(2)in Saccharina japonica.They are encoded by a superfamily of genes with seven subtypes that are unrelated in sequence but share conserved function in catalyzing the reversible conversion of CO_(2)and HCO_(3)^(-).Here we have characterized the CA members in the transcriptome of S.japonica using Single-molecule real-time(SMRT)sequencing technology.Approximately 9830.4 megabases from 5,028,003 quality subreads were generated,and they were assembled into 326,512 full-length non-chimeric(FLNC)reads,with an average flnc read length of 2181 bp.After removing redundant sequences,79,010 unique transcripts were obtained of which 38,039 transcripts were successfully annotated.From the full-length transcriptome,we have identified 7 full-length cDNA sequences for CA genes(4α-CAs,1β-CAs and 2γ-CAs)and assessed for their potential functions based on phylogenetic analysis.Characterizations of CAs will provide the ground for future studies to determine the involvement of CAs in inorganic carbon absorption and transportation in S.japonica.
