Enzyme

A cytochrome P-450 (heme-thiolate) protein found in plants. The 3',5'-dihydroxyflavanone is formed via the 3'-hydroxyflavanone. In Petunia hybrida the enzyme acts on naringenin, eriodictyol, dihydroquercetin (taxifolin) and dihydrokaempferol (aromadendrin). The enzyme catalyses the hydroxylation of 5,7,4'-trihydroxyflavanone (naringenin) at either the 3' position to form eriodictyol or at both the 3' and 5' positions to form 5,7,3',4',5'-pentahydroxyflavanone (dihydrotricetin). The enzyme also catalyses the hydroxylation of 3,5,7,3',4'-pentahydroxyflavanone (taxifolin) at the 5' position, forming ampelopsin.

F3'5'H

Enzyme

Flavanoid 3',5'-hydroxylase

Enzyme name

EC:1.14.14.81

Entry

Oxidoreductases;Acting on paired donors, with incorporation or reduction of molecular oxygen;With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other donor

Class

flavanone,[reduced NADPH---hemoprotein reductase]:oxygen oxidoreductase (3',5'-dihydroxylating)

Sysname

a flavanone + 2 [reduced NADPH---hemoprotein reductase] + 2 O2 = a 3',5'-dihydroxyflavanone + 2 [oxidized NADPH---hemoprotein reductase] + 2 H2O (overall reaction) [RN:R10069];(1a) a flavanone + [reduced NADPH---hemoprotein reductase] + O2 = a 3'-hydroxyflavanone + [oxidized NADPH---hemoprotein reductase] + H2O [RN:R07369];(1b) a 3'-hydroxyflavanone + [reduced NADPH---hemoprotein reductase] + O2 = a 3',5'-dihydroxyflavanone + [oxidized NADPH---hemoprotein reductase] + H2O [RN:R07370]

Reaction

3',5'-dihydroxyflavanone [CPD:C15609];[oxidized NADPH---hemoprotein reductase] [CPD:C03161];H2O [CPD:C00001];3'-hydroxyflavanone [CPD:C15204]

Product

Species information

Aegilops tauschii

Species name

Aegilops tauschii is a species of monocot in the family Poaceae (grass family).

Species info

Gene sequence info

Aegilops_tauschii.F3_5_H.fa

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>rna-XM_020290695.2
MQLAAVCTDPWVLSGTALVVLVHLVLRHFRSGGRRLPPGPRGFPILGALPLVGPTPHTGLAALARKHGPVMYLKMGTCGVVVASSPAAARQFLKVQDARFADRPAVASAVDITYGFQTIAFGMQGPRWKQMRKLSTVHLLGAQAMSEWASVRRDEAGRLLRDVAGASAAGELVSVPDVLVRAFANIIGQITLSKRLFDTQGDEANRYKEMITLVQSGSGLFNISDFVPALSRFDLQGVQAKLRKIHLRFDDMITSLLDEHSATAKQRQGRPDFIDKLRASMADNKDSNDADTISEVNVKGFVFDMFTAGTDTASIIAEWAMAEMIKNPSITARAQEEMDRVVGRGRRLEESDVASLPYLQAVCKEAMRLHPSTPLSIPHFSAEECEVDGYHIPRNTQLLVNIWAIGRDEGTWEDPLEFRPERFLSGPTANVDALGNHFELIPFGAGRRICVGKLAGMVFVQYFLGMLVHAFEWRLPEGEKLDMEEQFGLTMPKAVPLRAIVTPRLAPAAYA
>rna-XM_020299396.1
MELGSSATMSRELVVLAFTYVLVHYLTGVILRSKRASLPLPPGPRGYPVVGALPLLGRAPHRALAALARLHGPIMHLTLGRQGLVVASTPESARLLLKDHGGSFLDRPVDDAGPMVLAYGAQDLVFAPYGPKWRRLRRECSAGLLGPKALADWADTRHEEVGRMVRAMSRRGEALEVPEFLFAAMANMIGQAVVGRRVLDEAGGEATREFKEMVVELMTTAGLVNIGDFVPAVAWMDLQGLGRRMRRLTTRLDRAWSRLLSDHEVAMANRKQDGSRRTDLVDRLIACRDHAEDVGDGVTDLNIKAVLNNLFTAGTDTSSSTIEWALTEMLVNSAILQQAQAEMDEVVGRDRLLQESDIRHLPYLRAICKETFRKHPSTPLNLPRISTEPCKVQGYHIPKGTRLVVNIWAIGRDPAVWPEPERFDPGRFMTEEGRKVEPMGSHFQLIPFGAGRRMCAGARMGVSLVEHMLGALVHAFDWEMPEGATAMDMEEEFGLALQKKVPVRAIVRPRLAPIAYE
>rna-XM_020333629.2
MESGSATTITIQELVVLAIMYVVLHYLTRTILRTKRASPLPLAPGPRGYPVVGALPLLGRAPHRALADLARLHGPIMHLTLGRQGVVVASTPDAARLFLRDHGGSFLDRPADDVAPTVLAYGAQDLVFAPYGPRWRRLRRECSLGLLGPQALADWADARREEVGRMVRAMSRRGAGTAVEVPEFLFCAMANIIGQAVVGRRVLDEAGGEEAREFKEMVVELMTTAGLVNLGDFLPAVAWMDLQGLGRRMRRLSARLDRVWSGLLSEHEATMADRDREQERRGRQPDLVDRLIACRGDARAGEDGVTDLNIKALLNNLFTAGTDTSSSTIEWALAEMLANPAILRRAQAEMDGVVGRDRLLQESDIPHLPYLRAICKETFRLHPSTPLSLPRLSTEPCTVQGYHIPEGTRLLVNIWAIGRDPAVWAEPARFDPGRFTTEEGSKVEPLGSHFELIPFGAGRRICAGARMGVTLVHHMLGALVHAFDWEVPEGGGMDMDMDEDFGLALQKKVPLRAVLRPRLAPGAYQ
>rna-XM_020340592.2
MQLAAVCTDPFVICCTFMCLLLHLALRSLNPNSASGRRLPPGPRGVPVLGALPLVGPAPHSGLLALARKYGPVMYLRMGTCGVVVASSPSAARTFLKALDQRFANRPAVASAEDMSYGCQNMVFANYGPKWKLLRKLSSVHLLGASAVAGWASVRRDEAGRALRAVLEAADAGRPVVVPEMLVCALANIVGQITVSKRVFDAQGDESNTYKEMIKSLLTGTGLFNISDFVPALSWLDLQGVQAKLRRIHIQFDGLVTKWLAEHAATAEDRLREGRLDFVDKLRAINDDEGGETITEVNIKGLITDMFTAGTDTSSIIVEWAMAEMIKSPSIMARAQEEMDRVIGRDRRLEESDIANLPYLQAICKEAMRLHPSTPLSLPHFSFEECEVDGHHVPANTRLIINIWAIGRDPDAWEDPLEFRPERFLSGPAAKIDPMGNNFELIPFGAGRRICAGMLAGMVFVQYFLGMLVHAFEWRLPDGEDKVDMAETFGLALPKTVPLKAVVKPRLVPAAYT
>rna-XM_020344133.1
MQLAALCTDPFVLSCTLLCLLLHLALRHSLNRSSRLPPGPPGVPILGAMPFVGPAPHTGLAALARKYGPVMYLRMGTCGVVVASSPSAARTFLKALDARFANRPAVASAADITYGRQNMVFANYGPKWKLMRKLASVHLLGARAVADWASVRRDEAGRALRGMAEAAEAGRAVVVPEVLVCALANIVGQITVSKRVFDAQGDESSSYKEMIVSLLTGTGLFNISDFVPALSRLDLQGVQARLRRVHRQFDGLITKLLAEHAATAEQRAREGRLDFVDRLRASSKDGDGDGETITEVNIKGLIFDMFTAGTDTSSIIVEWAMAEMINNPSIMARAQEEMDHVIGRDRRIEESDIANLPYLQAICKEAMRLHPSTPLSLPHFSFEECEVDGHHVPANTRLLINIWAIGRDPAAWEDPLEFRPERFLSGPAANIDPMGNNFELIPFGAGRRICAGKLAGMVFVQYFLGMLVHAFEWRLPDGEEKVDMAETFGLALPKAIPLKAIVTPRLVPAAYT

Gene tree

Gene tree

Sheng jun & Dong yang Teams, Yunnan agriculture University