Enzyme
The enzyme catalyses the first committed step in the biosynthesis of flavonoids. It can also act on dihydro-4-coumaroyl-CoA, forming phloretin.
CHS
Enzyme
Chalcone synthase
Enzyme name
EC:2.3.1.74
Entry
Transferases;Acyltransferases;Transferring groups other than aminoacyl groups
Class
malonyl-CoA:4-coumaroyl-CoA malonyltransferase (cyclizing)
Sysname
3 malonyl-CoA + 4-coumaroyl-CoA = 4 CoA + naringenin chalcone + 3 CO2[RN:R01613]
Reaction
CoA [CPD:C00010];naringenin chalcone [CPD:C06561];CO2 [CPD:C00011]
Product

Species information
Petunia inflata
Species name
Petunia integrifolia subsp. inflata is a subspecies of violet-flowered petunia (Petunia integrifolia)
Species info

Gene sequence info
Petunia_inflata.CHS.fa
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>Peinf101Scf00187g04018.1
MVTVEEVRNAQRAEGPATVLAIGTATPSNCVDQSTYPDYYFRVTDSEHKTELKEKFKRICDKSMIKKRYMHLTEKILKENPNICVSMAPSLDARTNIYAVEVPKLGKEAAEKAIEEWNQPKSRITHLVFCTTTGVSMPGADFQHTKLLGLGSSVKRFTMNQLGCFAGGTVLRLAKDLAENNKGARVLVVCSEITVVTFRGPNDTHFDSLVGQALFGDGAAAVIIGSDPIPNVERPLFELVSAAQTLLPDSKNFICSELREIGLTFHLLKDVPELISNNIEKSLVEVFQPLGISAWNSIFWVAHPGGPAILNQVELKLGLNPEKLGATRHVLSEYGNMSSASILFVLDEMRKSSTQKGFDTTGEGLEWGVLIGFGPGITFETIVLHSVST
>Peinf101Scf00094g02009.1
MSQNNKNVNGASKSYFQSSIGRLPTPGKATILAMGKAFPPQLVPQDCLVEGYIRDTNCQDLAIKEKLERLYYFISKTTTVKTRYTVMSKEILEKYPELATEGTPTIKQRLEIANPAVVEMAKQACLACIKEWGRSTDDITHIVYVSSSEIRLPGGDLHLATELGLKNDIGRVMLYFLGCYGGVTGLRVAKDIAENNPGSRVLLTTTETTILGFRPPNNARPYDLVGAALFGDGAAAVIIGTEPVVGLESPFMELNLAVQQFLPGTKHVIDGRLSEEGINFKLGRDLPEKIQDNIEEFCKKLMAKGKLEEANYNDLFWAVHPGGPAILNRLESTLKLQSEKLDCSRRALMDFGNVSSNTIFYVMEYMREELKNKKDGGEEWGLALAFGPGITFEGILLRSL
>Peinf101Scf00437g05004.1
MVTVEEIRRAQRAEGPATIMAIGTATPSNCVDQSTYPDYYFRITNSEHKTELKEKFQRMCDKSMIKKRYMHLTEEILKENPNICEYMAPSLDARQDIVVVEVPKLGKEAAQKAIKEWGQPKSKITHLVFCTTSGVDMPGADYQLTKLLGLRSSVKRLMMYQQGCFAGGTVLRLAKDLAENNKGARVLVVCSEITAVTFRGPNDTHLDSLVGQALFGDGAAAIIIGSDPLPGVERPLFELVSASQTLLPDSEGAIDGHLREVGLTFHLLKDVPGLISKNIQKSLVEAFQPLGISDWNSIFWIAHPGGPAILDQVELKLGLKPEKLRATRHVLSEYGNMSSACVLFILDEMRKASSKEGLGTTGEGLEWGVLFGFGPGLTVETVVLHSVST
>Peinf101Scf00437g12010.1
MKVENGQLQGWRAQRAEGPAKILAIGTATPFHWVDQNSYPDYYFRVTNSQHLVDLKEKFRRSRTMIKKRHMFLTEELLRKNPTLCSHNEPSLDIRQDILVSEIPKLGKEAALKAIEEWGQPKSTITHLVFCTRSGVDMPGADYQLVKLLGLSPSVQRLMMYQQGCFAGGTMLRLAKDLAENNKGARVLVVCAESSAIGFRGPSEANVDNLIAQALFGDGAAALIIGSDPKPGLERPVFEIFSAAQTFVLNGDCHLALHLREMGLTFHCTKDVPPTIAKNVESCLIKAFEPLGISDWNSLFWILHPGGNAIVDQVESKLGLEPEKLRATRNILNEYGNLSSACVLFILDEIRKKSAREGMRTSGDGLDLGVLLSFGPGLTIETVVLRSVPI
>Peinf101Scf00631g01013.1
MVTVEEVRRAQRAEGPATILAIGTATPFNCVDQTTYPDYFFRVTNSDHKTELKEKFKRICERSMIKKRYLHLTEEILKENPSICEHKAPSFDARQDIVVVEVPKLGKEAAQKAINEWGQPKSKITHLVFCTTSGVDMPGADYQLTKLLGLSPSVKRLMMYQQGCYGGGTVLRLAKDLAENNKGARVLVVCSEITAITFHAPSDTDLDVLVGQALFGDGAASVIIGSDPNLEVEKPLFELVSAAQTLVPDSGHGIYGKTSEVGLTFHLHKDVPRLVSQDIEKSLVEVFQPLGIFDWNSIFWVGHAGGRAILDQVELKLGLKPEKLNVTRHVMSEYGNMASACVLFVLDEMRKTSTKEGFGTTGEGLEWGVLCGFGPGLTIETIVLHSVSI
>Peinf101Scf00559g12002.1
MATVEEIRKAQRAEGPATVLAIGTANPSNCVDQSTYPDFLFRITNSDHKTELKEKFKRMCERSMIKKRYSHLTEEILKKNPNICEYKAPSFDARQEIAVAEAPKLGKKAAEKAIEEWGQSKSKITHLVFCTTTSVEIPGADYQLTKLLGLGPSVNRSMMYQQGCFGGGAALRLAKDLAENNKGARVLVVCVEICTVMCFHAPRHDDTDELDVLVAQALFGDGASAVIIGSDPILAIEKPLFELVFATQTFIPDSGHVICANLTEAGLISHIHKDAPILISQHIERRLMEVFQPLGISDWNSIFWVAHPGGRAILDQIELKLGLKPEKLRAARHVMSEYGNMSSACVLFVLDEIRKASMKQGLGTTGEGFEWGVLFGFGPGLTIETVVLHSVSN
>Peinf101Scf01775g10041.1
MVTVEEYRKAQRAEGPATVMAIGTATPTNCVDQSTYPDYYFRITNSEHKTDLKEKFKRMCEKSMIKKRYMHLTEEILKENPSMCEYMAPSLDARQDIVVVEVPKLGKEAAQKAIKEWGQPKSKITHLVFCTTSGVDMPGCDYQLTKLLGLRPSVKRLMMYQQGCFAGGTVLRLAKDLAENNKGARVLVVCSEITAVTFRGPNDTHLDSLVGQALFGDGAGAIIIGSDPIPGVERPLFELVSAAQTLLPDSHGAIDGHLREVGLTFHLLKDVPGLISKNIEKSLEEAFKPLGISDWNSLFWIAHPGGPAILDQVEIKLGLKPEKLKATRNVLSNYGNMSSACVLFILDEMRKASAKEGLGTTGEGLEWGVLFGFGPGLTVETVVLHSVAT
>Peinf101Scf01775g10050.1
MVTVEEYRKAQRAEGPATVMAIGTATPTNCVDQSTYPDYYFRITNSEHKTELKEKFKRMYMHLTEEILKENPSMCEYMAPSLDARQDIVVVEVPKLGKEAAQKAIKEWGQPKSKITHLVFCTTSGVDMPGCDYQLTKLLGLRPSVKRLMMYQQGCFAGGTVLRLAKDLAENNKGARVLVVCSEITAVTFRGPNDTHLDSLVGQALFGDGAGAIIIGSDPIPGVERPLFELVSAAQTLLPDSHGAIDGHLREVGLTFHLLKDVPGLISKNIEKSLEEAFKPLGISDWNSLFWIAHPGGPAILDQVEIKLGLKPEKLKATRNVLSNYGNMSSACVLFILDEMRKASAKEGLGTTGEGLEWGVLFGFGPGLTVETVVLHSVAT
>Peinf101Scf02318g01029.1
MGRLEKMEGGKKVNNGNATILSLGKAFPHQLVMQEFLVDGYFKNTNCDDPELKQRLTRLCKTTTVKTRYVVMSEEILKKYPELTVEGLPTVKQRLDICNAAVTEMAIEASQSCIKKWGRPVSDITHVVYVSSSEARLPGGDLYLAKGLGLSPQTKRVMLYFAGCSGGVAGIRVAKDIAENNPGSRVLLATSETTIIGFKPPSPNRPYDLVGVALFGDGAGAMIIGSNPIQEIERPLFELHTAIQHFLPDTEKVIDGRLTEEGISFKLERELPQIIEDNIQDFCDKLISIAGYNDTDYNKLFWAVHPGGPAILNRLEKKLELSPEKLSASRRALADFGNASSNTIVYVLEYMLEEKKDKKQEGNQEDPDWGLILAFGPGITFEGILTKNLTN
MVTVEEVRNAQRAEGPATVLAIGTATPSNCVDQSTYPDYYFRVTDSEHKTELKEKFKRICDKSMIKKRYMHLTEKILKENPNICVSMAPSLDARTNIYAVEVPKLGKEAAEKAIEEWNQPKSRITHLVFCTTTGVSMPGADFQHTKLLGLGSSVKRFTMNQLGCFAGGTVLRLAKDLAENNKGARVLVVCSEITVVTFRGPNDTHFDSLVGQALFGDGAAAVIIGSDPIPNVERPLFELVSAAQTLLPDSKNFICSELREIGLTFHLLKDVPELISNNIEKSLVEVFQPLGISAWNSIFWVAHPGGPAILNQVELKLGLNPEKLGATRHVLSEYGNMSSASILFVLDEMRKSSTQKGFDTTGEGLEWGVLIGFGPGITFETIVLHSVST
>Peinf101Scf00094g02009.1
MSQNNKNVNGASKSYFQSSIGRLPTPGKATILAMGKAFPPQLVPQDCLVEGYIRDTNCQDLAIKEKLERLYYFISKTTTVKTRYTVMSKEILEKYPELATEGTPTIKQRLEIANPAVVEMAKQACLACIKEWGRSTDDITHIVYVSSSEIRLPGGDLHLATELGLKNDIGRVMLYFLGCYGGVTGLRVAKDIAENNPGSRVLLTTTETTILGFRPPNNARPYDLVGAALFGDGAAAVIIGTEPVVGLESPFMELNLAVQQFLPGTKHVIDGRLSEEGINFKLGRDLPEKIQDNIEEFCKKLMAKGKLEEANYNDLFWAVHPGGPAILNRLESTLKLQSEKLDCSRRALMDFGNVSSNTIFYVMEYMREELKNKKDGGEEWGLALAFGPGITFEGILLRSL
>Peinf101Scf00437g05004.1
MVTVEEIRRAQRAEGPATIMAIGTATPSNCVDQSTYPDYYFRITNSEHKTELKEKFQRMCDKSMIKKRYMHLTEEILKENPNICEYMAPSLDARQDIVVVEVPKLGKEAAQKAIKEWGQPKSKITHLVFCTTSGVDMPGADYQLTKLLGLRSSVKRLMMYQQGCFAGGTVLRLAKDLAENNKGARVLVVCSEITAVTFRGPNDTHLDSLVGQALFGDGAAAIIIGSDPLPGVERPLFELVSASQTLLPDSEGAIDGHLREVGLTFHLLKDVPGLISKNIQKSLVEAFQPLGISDWNSIFWIAHPGGPAILDQVELKLGLKPEKLRATRHVLSEYGNMSSACVLFILDEMRKASSKEGLGTTGEGLEWGVLFGFGPGLTVETVVLHSVST
>Peinf101Scf00437g12010.1
MKVENGQLQGWRAQRAEGPAKILAIGTATPFHWVDQNSYPDYYFRVTNSQHLVDLKEKFRRSRTMIKKRHMFLTEELLRKNPTLCSHNEPSLDIRQDILVSEIPKLGKEAALKAIEEWGQPKSTITHLVFCTRSGVDMPGADYQLVKLLGLSPSVQRLMMYQQGCFAGGTMLRLAKDLAENNKGARVLVVCAESSAIGFRGPSEANVDNLIAQALFGDGAAALIIGSDPKPGLERPVFEIFSAAQTFVLNGDCHLALHLREMGLTFHCTKDVPPTIAKNVESCLIKAFEPLGISDWNSLFWILHPGGNAIVDQVESKLGLEPEKLRATRNILNEYGNLSSACVLFILDEIRKKSAREGMRTSGDGLDLGVLLSFGPGLTIETVVLRSVPI
>Peinf101Scf00631g01013.1
MVTVEEVRRAQRAEGPATILAIGTATPFNCVDQTTYPDYFFRVTNSDHKTELKEKFKRICERSMIKKRYLHLTEEILKENPSICEHKAPSFDARQDIVVVEVPKLGKEAAQKAINEWGQPKSKITHLVFCTTSGVDMPGADYQLTKLLGLSPSVKRLMMYQQGCYGGGTVLRLAKDLAENNKGARVLVVCSEITAITFHAPSDTDLDVLVGQALFGDGAASVIIGSDPNLEVEKPLFELVSAAQTLVPDSGHGIYGKTSEVGLTFHLHKDVPRLVSQDIEKSLVEVFQPLGIFDWNSIFWVGHAGGRAILDQVELKLGLKPEKLNVTRHVMSEYGNMASACVLFVLDEMRKTSTKEGFGTTGEGLEWGVLCGFGPGLTIETIVLHSVSI
>Peinf101Scf00559g12002.1
MATVEEIRKAQRAEGPATVLAIGTANPSNCVDQSTYPDFLFRITNSDHKTELKEKFKRMCERSMIKKRYSHLTEEILKKNPNICEYKAPSFDARQEIAVAEAPKLGKKAAEKAIEEWGQSKSKITHLVFCTTTSVEIPGADYQLTKLLGLGPSVNRSMMYQQGCFGGGAALRLAKDLAENNKGARVLVVCVEICTVMCFHAPRHDDTDELDVLVAQALFGDGASAVIIGSDPILAIEKPLFELVFATQTFIPDSGHVICANLTEAGLISHIHKDAPILISQHIERRLMEVFQPLGISDWNSIFWVAHPGGRAILDQIELKLGLKPEKLRAARHVMSEYGNMSSACVLFVLDEIRKASMKQGLGTTGEGFEWGVLFGFGPGLTIETVVLHSVSN
>Peinf101Scf01775g10041.1
MVTVEEYRKAQRAEGPATVMAIGTATPTNCVDQSTYPDYYFRITNSEHKTDLKEKFKRMCEKSMIKKRYMHLTEEILKENPSMCEYMAPSLDARQDIVVVEVPKLGKEAAQKAIKEWGQPKSKITHLVFCTTSGVDMPGCDYQLTKLLGLRPSVKRLMMYQQGCFAGGTVLRLAKDLAENNKGARVLVVCSEITAVTFRGPNDTHLDSLVGQALFGDGAGAIIIGSDPIPGVERPLFELVSAAQTLLPDSHGAIDGHLREVGLTFHLLKDVPGLISKNIEKSLEEAFKPLGISDWNSLFWIAHPGGPAILDQVEIKLGLKPEKLKATRNVLSNYGNMSSACVLFILDEMRKASAKEGLGTTGEGLEWGVLFGFGPGLTVETVVLHSVAT
>Peinf101Scf01775g10050.1
MVTVEEYRKAQRAEGPATVMAIGTATPTNCVDQSTYPDYYFRITNSEHKTELKEKFKRMYMHLTEEILKENPSMCEYMAPSLDARQDIVVVEVPKLGKEAAQKAIKEWGQPKSKITHLVFCTTSGVDMPGCDYQLTKLLGLRPSVKRLMMYQQGCFAGGTVLRLAKDLAENNKGARVLVVCSEITAVTFRGPNDTHLDSLVGQALFGDGAGAIIIGSDPIPGVERPLFELVSAAQTLLPDSHGAIDGHLREVGLTFHLLKDVPGLISKNIEKSLEEAFKPLGISDWNSLFWIAHPGGPAILDQVEIKLGLKPEKLKATRNVLSNYGNMSSACVLFILDEMRKASAKEGLGTTGEGLEWGVLFGFGPGLTVETVVLHSVAT
>Peinf101Scf02318g01029.1
MGRLEKMEGGKKVNNGNATILSLGKAFPHQLVMQEFLVDGYFKNTNCDDPELKQRLTRLCKTTTVKTRYVVMSEEILKKYPELTVEGLPTVKQRLDICNAAVTEMAIEASQSCIKKWGRPVSDITHVVYVSSSEARLPGGDLYLAKGLGLSPQTKRVMLYFAGCSGGVAGIRVAKDIAENNPGSRVLLATSETTIIGFKPPSPNRPYDLVGVALFGDGAGAMIIGSNPIQEIERPLFELHTAIQHFLPDTEKVIDGRLTEEGISFKLERELPQIIEDNIQDFCDKLISIAGYNDTDYNKLFWAVHPGGPAILNRLEKKLELSPEKLSASRRALADFGNASSNTIVYVLEYMLEEKKDKKQEGNQEDPDWGLILAFGPGITFEGILTKNLTN
Gene tree
Gene tree

Sheng jun & Dong yang Teams, Yunnan agriculture University