Category:FL5F

Flavonol

Overview

Flavonols are most widespread of the flavonoids and the main dietary flavonols are: kaempferol, quercetin, isorhamnetin, and myricetin.

The majority of flavonol glycosides (including dihydroflavonols) are present as O-glycosides and not C-glycosides (see Glycosylation Patterns below). Most glycosides are 3-, 7-, 3'-, 4'-glycosides and their combinations. Only flavonols and flavones contain rare glycosidic sugars such as alloside (allose), mannoside (mannose), galacturonic acid (galacturonide), and apioside (this is found in isoflavone too).
Also, 2 flavonols (FL5FF8NS0002 FL5FF8NSH001) are exceptionally found from a fungus Aspergillus candidus.

Biosynthesis

Excerpt from the FL top page

	naringenin FLAVANONE		kaempferol	FLAVONOLS			quercetin	myricetin
	F3H (hydroxylase)	FLS:flavonol synthase (oxygenase)				FLS		FLS
DIHYDRO FLAVONOLS	dihydro-kaempferol	F3'H +OH in B-ring			dihydro-quercetin	F3'5'H +OH in B-ring		dihydro-myricetin

Major Plant Families

The number in each family is counted as the number of genera (not species) listed in our registered references. Each reference record is accessible by clicking the link in compound pages. The taxonomy follows the APG-II classification. For details (or if the figure is broken), visit this page.

各科のカウントは種名でなく文献に記載された属名の数です。文献は代謝物ページのリンクからたどれ、分類はAPG-IIです。左の図が表示されない場合はここをクリックしてください。

Patterns of Hydroxylation

Category Names in the 3rd Class

ID	Description
FL5F19 (5 pages)	7,(3'),(5')-Hydroxyflavonol and O-methyl derivatives
FL5F1A (7 pages)	Resokaempferol and O-methyl derivatives
FL5F1C (19 pages)	Fisetin and O-methyl derivatives
FL5F1G (10 pages)	Robinetin and O-methyl derivatives
FL5F1L (1 pages)	7,2',(3'),4',(5'),(6')-Hydroxyflavonol and O-methyl derivatives
FL5F29 (2 pages)	6,7,(3'),(5')-Hydroxyflavonol and O-methyl derivatives
FL5F2A (4 pages)	6,7,4'-Hydroxyflavonol and O-methyl derivatives
FL5F2C (6 pages)	Rhynchosin O-methyl derivatives
FL5F2G (1 pages)	6,7,3',4',5'-Hexahydroxyflavonol and O-methylderivatives
FL5F2L (1 pages)	6,7,2',(3'),4',(5'),(6')-Hydroxyflavonol and O-methyl derivatives
FL5F39 (3 pages)	7,8,(3'),(5')-Hydroxyflavonol and O-methyl derivatives
FL5F3A (4 pages)	7,8,4'-Tetrahydroxyflavonol and O-methyl derivatives
FL5F3C (6 pages)	Melanoxetin and O-methyl derivatives
FL5F3L (1 pages)	7,8,2',(3'),4',(5'),(6')-Hydroxyflavonol and O-methyl derivatives
FL5F4A (1 pages)	6,7,8,4'-Tetrahydroxyflavonol and O-methyl derivatives
FL5F4G (1 pages)	6,7,8,3',4',5'-Hexahydroxyflavonol and O-methyl derivatives
FL5F9A (2 pages)	(5),(6),(8),4'-Hydroxyflavonol and O-methyl drivatives
FL5F9C (2 pages)	(5),(6),(8),3',4'-Hydroxyflavonol and O-methyl drivatives
FL5F9G (1 pages)	(5),(6),(8),3',4',5'-Hydroxyflavonol and O-methyl drivatives
FL5FA8 (10 pages)	5,7,2',(3'),(5'),(6')-Hydroxyflavonol and O-methyl derivatives
FL5FA9 (31 pages)	5,7,(3'),(5')-Hydroxyflavonol and O-methyl derivatives
FL5FAA (350 pages)	Kaempferol
FL5FAB (51 pages)	Kaempferide
FL5FAC (290 pages)	Quercetin
FL5FAD (111 pages)	Isorhamnetin
FL5FAE (17 pages)	Tamarixetin
FL5FAF (6 pages)	Dillenetin
FL5FAG (60 pages)	Myricetin
FL5FAH (13 pages)	Laricitrin
FL5FAI (16 pages)	Syringetin
FL5FAJ (8 pages)	Mearnsetin
FL5FAK (3 pages)	Myricetin (3'),(4'),(5')-methyl ether (without FL5FAH-FL5FAJ)
FL5FAL (26 pages)	5,7,2',(3'),4',(5'),(6')-Hydroxyflavonol and O-methyl derivatives
FL5FBA (4 pages)	Kaempferol 5-methyl ether
FL5FBB (1 pages)	Kaempferol 5,4'-dimethyl ether
FL5FBC (6 pages)	Azaleatin
FL5FBD (1 pages)	Quercetin 5,3'-dimethyl ether
FL5FBE (1 pages)	Quercetin 5,4'-dimethyl ether
FL5FBF (2 pages)	Quercetin 5,3',4'-trimethyl ether
FL5FBG (5 pages)	Myricetin 5-methyl ether
FL5FCA (35 pages)	Rhamnocitrin
FL5FCB (6 pages)	Kaempferol 7,4'-dimethyl ether
FL5FCC (33 pages)	Rhamnetin
FL5FCD (14 pages)	Rhamnazin
FL5FCE (12 pages)	Ombuin
FL5FCF (4 pages)	Quercetin 7,3',4'-trimethyl ether
FL5FCG (6 pages)	Europetin
FL5FCJ (2 pages)	Myricetin 7,4'-dimethyl ether
FL5FCK (2 pages)	Myricetin 7,(3'),(4'),(5')-methyl ether (without FL5FCG,FL5FCJ)
FL5FDA (23 pages)	Kaempferol O-methyl derivatives (4'-hydroxy, without FL5FBA, FL5FCA)
FL5FDB (8 pages)	Kaempferol O-methyl derivatives (4'-methoxy, without FL5FAB, FL5FBB, FL5FCB)
FL5FDC (34 pages)	Quercetin O-methyl derivatives (3',4'-hydroxy, without FL5FBC, FL5FCC)
FL5FDD (22 pages)	Quercetin O-methyl derivatives (4'-hydroxy-3'-methoxy, without FL5FAD, FL5FBD, FL5FCD)
FL5FDE (8 pages)	Quercetin O-methyl derivatives (3'-hydroxy-4'-methoxy, without FL5FAE, FL5FBE, FL5FCE)
FL5FDF (9 pages)	Quercetin O-methyl derivatives (3',4'-methoxy, without FL5FAF, FL5FBF, FL5FCF)
FL5FDG (7 pages)	Myricetin O-methyl derivatives (3,4,5-Hydroxy, without FL5FBG, FL5FCG)
FL5FDH (3 pages)	Myricetin O-methyl derivatives (4,5-Hydroxy-3-methoxy, without FL5FAH)
FL5FDI (2 pages)	Myricetin O-methyl derivatives (4-Hydroxy-3,5-methoxy, without FL5FAI)
FL5FDJ (6 pages)	Myricetin O-methyl derivatives (3,5-Hydroxy-4-methoxy, without FL5FAJ, FL5FCJ)
FL5FDK (7 pages)	Myricetin O-methyl derivatives (without FL5FAH-FL5FAK, FL5FBG-FL5FBK, FL5FCG-FL5FCK, FL5FDG-FL5FDJ)
FL5FE8 (2 pages)	5,6,7,2',(3'),(5'),(6')-Hydroxyflavonol and O-methyl derivatives
FL5FE9 (13 pages)	5,6,7,(3'),(5')-Hydroxyflavonol and O-methyl derivatives
FL5FEA (75 pages)	6-Hydroxykaempferol and O-methyl derivatives
FL5FEC (151 pages)	Quercetagetin and O-methyl derivatives
FL5FEG (20 pages)	6-Hydroxymyricetin and O-methyl derivatives
FL5FEL (23 pages)	5,6,7,2',(3'),4',(5'),(6')-Hydroxyflavonol and O-methyl derivatives
FL5FF8 (10 pages)	5,7,8,2',(3'),(5'),(6')-Hydroxyflavonol and O-methyl derivatives
FL5FF9 (27 pages)	5,7,8,(3'),(5')-Hydroxyflavonol and O-methyl derivatives
FL5FFA (71 pages)	Herbacetin and O-methyl derivatives
FL5FFC (95 pages)	Gossypetin and O-methyl derivatives
FL5FFG (13 pages)	Hibiscetin and O-methyl derivatives
FL5FFL (8 pages)	5,7,8,2',(3'),4',(5'),(6')-Hydroxyflavonol and O-methyl derivatives
FL5FG8 (1 pages)	5,6,7,8,2',(3'),(5'),(6')-Hydroxyflavonol and O-methyl derivatives
FL5FG9 (9 pages)	5,6,7,8,(3'),(5')-Hydroxyflavonol and O-methyl derivatives
FL5FGA (17 pages)	5,6,7,8,4'-Pentahydroxyflavonol and O-methyl derivatives
FL5FGC (37 pages)	5,6,7,8,3',4'-Hexahydroxyflavonol and O-methyl derivatives
FL5FGG (18 pages)	5,6,7,8,3',4',5'-Heptahydroxyflavonol and O-methyl derivatives
FL5FGL (13 pages)	5,6,7,8,2',(3'),4',(5'),(6')-Hydroxyflavonol and O-methyl derivatives
FL5FPT (8 pages)	Peltogynoid

The 5th and 6th digits of our flavonoid ID indicates the hydroxylation patterns of A-ring and B-ring (See the upper-right figure. The leftmost ring is A, rightmost is B), respectively. The following chart is spanned by these 2 digits. R indicates H or CH₃, and R' indicates H or R. Numbers are IUPAC positions. The value in each cell (such as GS: glycosilation only) corresponds to the 7th and 8th digits, which is explained at the bottom of this page.

Details of the 3rd Class: Hydroxylation pattern of A and B rings (5th and 6th digits)
Position of -OH (-OCH₃) groups 6th digit → 5th digit ↓		A (593 pages)	B (66 pages)	C (679 pages)	D (148 pages)	E (38 pages)	F (21 pages)	G (142 pages)	H (16 pages)	I (18 pages)	J (16 pages)	K (12 pages)	L (73 pages)	8 (23 pages)	9 (90 pages)
Position of -OH (-OCH₃) groups 6th digit → 5th digit ↓
	A (992 pages)	CS (2 pages) DS (1 pages) GA (47 pages) GI (16 pages) GL (113 pages) GM (2 pages) GP (1 pages) GS (141 pages) NC (2 pages) NI (11 pages) NM (2 pages) NN (2 pages) NP (3 pages) NR (1 pages) NS (6 pages)	GA (1 pages) GI (29 pages) GL (3 pages) GP (1 pages) GS (12 pages) NI (3 pages) NS (2 pages)	CS (2 pages) GA (44 pages) GI (1 pages) GL (80 pages) GM (1 pages) GS (127 pages) NC (1 pages) ND (1 pages) NF (2 pages) NI (7 pages) NM (1 pages) NP (7 pages) NS (16 pages)	GA (26 pages) GL (41 pages) GS (36 pages) NI (2 pages) NS (6 pages)	GA (3 pages) GI (1 pages) GL (5 pages) GS (5 pages) NF (1 pages) NS (2 pages)	GL (3 pages) GS (2 pages) NS (1 pages)	GA (8 pages) GL (11 pages) GM (1 pages) GN (2 pages) GS (36 pages) NM (1 pages) NS (1 pages)	GA (1 pages) GL (6 pages) GS (5 pages) NS (1 pages)	CS (1 pages) GA (4 pages) GL (5 pages) GS (5 pages) NS (1 pages)	GA (2 pages) GS (3 pages) NM (2 pages) NS (1 pages)	GS (2 pages) NS (1 pages)	GL (1 pages) GS (3 pages) NI (2 pages) NS (20 pages)	GL (2 pages) GS (1 pages) NS (7 pages)	GL (3 pages) GM (1 pages) GS (6 pages) NI (3 pages) NM (6 pages) NN (1 pages) NP (3 pages) NS (8 pages)
	B (20 pages)	GA (2 pages) NI (1 pages) NS (1 pages)	NS (1 pages)	GA (1 pages) GL (2 pages) GS (2 pages) NS (1 pages)	NS (1 pages)	NS (1 pages)	GS (1 pages) NS (1 pages)	GA (1 pages) GL (1 pages) GS (2 pages) NS (1 pages)
	C (114 pages)	CS (1 pages) GA (4 pages) GI (1 pages) GL (11 pages) GS (14 pages) NI (1 pages) NM (1 pages) NS (2 pages)	GL (2 pages) GS (1 pages) NC (1 pages) NS (2 pages)	CS (1 pages) DS (1 pages) GA (9 pages) GL (4 pages) GS (13 pages) NS (5 pages)	GA (4 pages) GL (4 pages) GS (4 pages) NS (2 pages)	GA (1 pages) GI (1 pages) GL (4 pages) GS (1 pages) NI (2 pages) NS (3 pages)	GS (3 pages) NS (1 pages)	CS (1 pages) GA (1 pages) GS (3 pages) NS (1 pages)			GA (1 pages) NS (1 pages)	NS (2 pages)
	D (129 pages)	GS (8 pages) NF (4 pages) NI (3 pages) NM (4 pages) NS (4 pages)	GS (1 pages) NC (1 pages) NF (1 pages) NM (2 pages) NS (3 pages)	GS (16 pages) NF (2 pages) NI (4 pages) NM (5 pages) NP (2 pages) NS (5 pages)	GS (4 pages) NF (3 pages) NI (6 pages) NM (5 pages) NS (4 pages)	CS (1 pages) GS (3 pages) NI (1 pages) NS (3 pages)	GL (1 pages) GS (1 pages) NF (1 pages) NM (1 pages) NS (5 pages)	GS (4 pages) NM (2 pages) NS (1 pages)	NS (3 pages)	NS (2 pages)	GS (2 pages) NM (2 pages) NS (2 pages)	NS (7 pages)
	E (284 pages)	GA (5 pages) GL (10 pages) GS (26 pages) NI (7 pages) NM (1 pages) NS (26 pages)		GA (4 pages) GL (15 pages) GS (70 pages) NF (1 pages) NI (2 pages) NM (4 pages) NS (55 pages)				GL (1 pages) GS (1 pages) NS (18 pages)					GS (5 pages) NS (18 pages)	NS (2 pages)	GS (1 pages) NF (1 pages) NM (1 pages) NS (10 pages)
	F (224 pages)	GA (1 pages) GL (11 pages) GS (28 pages) NI (4 pages) NM (2 pages) NS (25 pages)		GA (6 pages) GL (14 pages) GS (28 pages) NI (9 pages) NS (38 pages)				GS (3 pages) NS (10 pages)					GS (1 pages) NS (7 pages)	NN (1 pages) NS (9 pages)	NI (6 pages) NM (6 pages) NS (15 pages)
	G (95 pages)	GL (1 pages) GS (3 pages) NI (3 pages) NS (10 pages)		GA (2 pages) GL (3 pages) GS (2 pages) NI (1 pages) NS (29 pages)				GS (1 pages) NS (17 pages)					NS (13 pages)	NS (1 pages)	NI (1 pages) NS (8 pages)
	1 (42 pages)	CS (1 pages) GL (1 pages) GS (2 pages) NF (1 pages) NS (2 pages)		CS (1 pages) GL (2 pages) GS (5 pages) NF (1 pages) NP (3 pages) NS (7 pages)				GS (3 pages) NF (1 pages) NS (6 pages)					GL (1 pages)		NF (2 pages) NP (1 pages) NS (2 pages)
	2 (14 pages)	GS (1 pages) NP (1 pages) NS (2 pages)		NI (1 pages) NP (1 pages) NS (4 pages)				NS (1 pages)					NS (1 pages)		GF (1 pages) NP (1 pages)
	3 (14 pages)	NS (4 pages)		NS (6 pages)									NS (1 pages)		GS (2 pages) NS (1 pages)
	4 (2 pages)	NS (1 pages)						GS (1 pages)
	9 (5 pages)	GL (1 pages) NI (1 pages)		NM (1 pages) NS (1 pages)				NS (1 pages)

Abbreviations used in the above chart

First Characters

N not glycosylated; G O-glycoside; C C-glycoside; D both glycosides;

Second Characters

S not modified; M alkylated; I prenylated; R cyclic-prenylated; F furanoFL; P pyranoFL; D furano and pyranoFL; N phenylpropanoid; C others;

Special Second Character only for Anthycyanin (FL7)

A Galactosylated; L Glucosylated; O modified with other sugars;

Other Unusual Patterns

These types are not classified in the above chart.

Quinone	QU (0 pages)	alpha-Hydroxy	HX (0 pages)	beta-Hydroxy	HY (0 pages)	Peltogynoid	PT (8 pages)
Retrocalchone	RT (0 pages)	Dehydro-backbone	WX (0 pages)	Additional rings	RN (0 pages)	Others	UN (0 pages)
Pyranoanthocyanin (FL7 only)			RX (0 pages)

Patterns of Glycosylation

The 7th and 8th digits of the flavonoid ID indicates the glycosylation, and other modification patterns, respectively. The following chart is spanned by these 2 digits. The value in each cell (such as AA for the standard form) corresponds to the 5th and 6th digits.

Details of the 4th Class: Glycosylation patterns (7th and 8th digits)
7th digit → 8th digit ↓		No glycosylation N (681 pages)	O-glycoside G (1249 pages)	C-glycoside C (11 pages)	O- & C-glycoside D (2 pages)
no modification	S (1160 pages)	19 (2 pages) 1A (2 pages) 1C (7 pages) 1G (6 pages) 2A (2 pages) 2C (4 pages) 2G (1 pages) 2L (1 pages) 39 (1 pages) 3A (4 pages) 3C (6 pages) 3L (1 pages) 4A (1 pages) 9C (1 pages) 9G (1 pages) A8 (7 pages) A9 (8 pages) AA (6 pages) AB (2 pages) AC (16 pages) AD (6 pages) AE (2 pages) AF (1 pages) AG (1 pages) AH (1 pages) AI (1 pages) AJ (1 pages) AK (1 pages) AL (20 pages) BA (1 pages) BB (1 pages) BC (1 pages) BD (1 pages) BE (1 pages) BF (1 pages) BG (1 pages) CA (2 pages) CB (2 pages) CC (5 pages) CD (2 pages) CE (3 pages) CF (1 pages) CG (1 pages) CJ (1 pages) CK (2 pages) DA (4 pages) DB (3 pages) DC (5 pages) DD (4 pages) DE (3 pages) DF (5 pages) DG (1 pages) DH (3 pages) DI (2 pages) DJ (2 pages) DK (7 pages) E8 (2 pages) E9 (10 pages) EA (26 pages) EC (55 pages) EG (18 pages) EL (18 pages) F8 (9 pages) F9 (15 pages) FA (25 pages) FC (38 pages) FG (10 pages) FL (7 pages) G8 (1 pages) G9 (8 pages) GA (10 pages) GC (29 pages) GG (17 pages) GL (13 pages) PT (8 pages)	1A (2 pages) 1C (5 pages) 1G (3 pages) 2A (1 pages) 39 (2 pages) 4G (1 pages) A8 (1 pages) A9 (6 pages) AA (141 pages) AB (12 pages) AC (127 pages) AD (36 pages) AE (5 pages) AF (2 pages) AG (36 pages) AH (5 pages) AI (5 pages) AJ (3 pages) AK (2 pages) AL (3 pages) BC (2 pages) BF (1 pages) BG (2 pages) CA (14 pages) CB (1 pages) CC (13 pages) CD (4 pages) CE (1 pages) CF (3 pages) CG (3 pages) DA (8 pages) DB (1 pages) DC (16 pages) DD (4 pages) DE (3 pages) DF (1 pages) DG (4 pages) DJ (2 pages) E9 (1 pages) EA (26 pages) EC (70 pages) EG (1 pages) EL (5 pages) FA (28 pages) FC (28 pages) FG (3 pages) FL (1 pages) GA (3 pages) GC (2 pages) GG (1 pages)	1A (1 pages) 1C (1 pages) AA (2 pages) AC (2 pages) AI (1 pages) CA (1 pages) CC (1 pages) CG (1 pages) DE (1 pages)	AA (1 pages) CC (1 pages)
alkylated	M (54 pages)	9C (1 pages) A9 (6 pages) AA (2 pages) AC (1 pages) AG (1 pages) AJ (2 pages) CA (1 pages) DA (4 pages) DB (2 pages) DC (5 pages) DD (5 pages) DF (1 pages) DG (2 pages) DJ (2 pages) E9 (1 pages) EA (1 pages) EC (4 pages) F9 (6 pages) FA (2 pages)	A9 (1 pages) AA (2 pages) AC (1 pages) AG (1 pages)
prenylated	I (0 pages)	2C (1 pages) 9A (1 pages) A9 (3 pages) AA (11 pages) AB (3 pages) AC (7 pages) AD (2 pages) AL (2 pages) BA (1 pages) CA (1 pages) CE (2 pages) DA (3 pages) DC (4 pages) DD (6 pages) DE (1 pages) EA (7 pages) EC (2 pages) F9 (6 pages) FA (4 pages) FC (9 pages) G9 (1 pages) GA (3 pages) GC (1 pages)	AA (16 pages) AB (29 pages) AC (1 pages) AE (1 pages) CA (1 pages) CE (1 pages)
cyclic prenylated	R (0 pages)	AA (1 pages)
furano FL	F (22 pages)	19 (2 pages) 1A (1 pages) 1C (1 pages) 1G (1 pages) AC (2 pages) AE (1 pages) DA (4 pages) DB (1 pages) DC (2 pages) DD (3 pages) DF (1 pages) E9 (1 pages) EC (1 pages)	29 (1 pages)
pyrano FL	P (24 pages)	19 (1 pages) 1C (3 pages) 29 (1 pages) 2A (1 pages) 2C (1 pages) A9 (3 pages) AA (3 pages) AC (7 pages) DC (2 pages)	AA (1 pages) AB (1 pages)
furano & pyrano FL	D (1 pages)	AC (1 pages)
prenylpropanoid	N (6 pages)	A9 (1 pages) AA (2 pages) F8 (1 pages)	AG (2 pages)
others	C (5 pages)	AA (2 pages) AC (1 pages) CB (1 pages) DB (1 pages)
3-Gal related	A	N.A.	AA (47 pages) AB (1 pages) AC (44 pages) AD (26 pages) AE (3 pages) AG (8 pages) AH (1 pages) AI (4 pages) AJ (2 pages) BA (2 pages) BC (1 pages) BG (1 pages) CA (4 pages) CC (9 pages) CD (4 pages) CE (1 pages) CG (1 pages) CJ (1 pages) EA (5 pages) EC (4 pages) FA (1 pages) FC (6 pages) GC (2 pages)	N.A.	N.A.
3-Glc related	L	N.A.	1A (1 pages) 1C (2 pages) 1L (1 pages) 9A (1 pages) A8 (2 pages) A9 (3 pages) AA (113 pages) AB (3 pages) AC (80 pages) AD (41 pages) AE (5 pages) AF (3 pages) AG (11 pages) AH (6 pages) AI (5 pages) AL (1 pages) BC (2 pages) BG (1 pages) CA (11 pages) CB (2 pages) CC (4 pages) CD (4 pages) CE (4 pages) DF (1 pages) EA (10 pages) EC (15 pages) EG (1 pages) FA (11 pages) FC (14 pages) GA (1 pages) GC (3 pages)	N.A.	N.A.
other sugar at 3	O	N.A.		N.A.	N.A.

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Category:FL5F

Contents

Overview

Biosynthesis

Major Plant Families

Patterns of Hydroxylation

Other Unusual Patterns

Patterns of Glycosylation

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