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Hydroxylation Patterns (水酸基パターン)

Category Names in the 3rd Class
ID Description

The 5th and 6th digits of our flavonoid ID indicates the hydroxylation patterns of A-ring and B-ring (See the upper-right figure), 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

A

B

C

D

E

F

G

H

I

J

K

L

8

9

A

B

C

D

E

F

G

1

2

3

4

9

Abbreviations used in the above chart

First Character:	N not glycosylated	G O-glycoside	C C-glycoside	D both glycosides
Second Character:	S not modified	M alkylated	I prenylated	R cyclic-prenylated
F furanoFL	P pyranoFL	D furano and pyranoFL	N phenylpropanoid	C others

Other Unusual Patterns (特殊な構造)

These types are not classified in the above chart.

Quinone	[[Special:Search&ns0=1&search={{{1}}}QU|QU (0 pages) ]]	alpha-Hydroxy	[[Special:Search&ns0=1&search={{{1}}}HX|HX (0 pages) ]]	beta-Hydroxy	[[Special:Search&ns0=1&search={{{1}}}HY|HY (0 pages) ]]	Peltogynoid	[[Special:Search&ns0=1&search={{{1}}}PT|PT (0 pages) ]]
Retrocalchone	[[Special:Search&ns0=1&search={{{1}}}RT|RT (0 pages) ]]	Dehydro-backbone	[[Special:Search&ns0=1&search={{{1}}}WX|WX (0 pages) ]]	Additional rings	[[Special:Search&ns0=1&search={{{1}}}RN|RN (0 pages) ]]	Others	[[Special:Search&ns0=1&search={{{1}}}UN|UN (0 pages) ]]
Pyranoanthocyanin			[[Special:Search&ns0=1&search={{{1}}}RX|RX (0 pages) ]]

Glycosylation Patterns (糖修飾パターン)

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)

		N: no glycosylation	G: O-glycoside	C: C-glycoside	D: O- & C-glycoside
no modification	S
alkylated	M
prenylated	I
cyclic prenylated	R
furano FL	F
pyrano FL	P
furano & pyrano FL	D
prenylpropanoid	N
others	C
3-Gal related	A	N.A.		N.A.	N.A.
3-Glc related	L	N.A.		N.A.	N.A.
other sugar at 3	C	N.A.		N.A.	N.A.