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Create a Sterol Structure
Sterol Core
Cholestane
Lanostane
Pregnane
Androstane
Estrane (estra-1,3,5(10)-triene)
Cholane
Norcholane
C24 Bile acid
C24 Bile acid alanine conjugate
C24 Bile acid arginine conjugate
C24 Bile acid asparagine conjugate
C24 Bile acid aspartate conjugate
C24 Bile acid cysteine conjugate
C24 Bile acid glutamate conjugate
C24 Bile acid glutamine conjugate
C24 Bile acid glycine conjugate
C24 Bile acid histidine conjugate
C24 Bile acid isoleucine conjugate
C24 Bile acid leucine conjugate
C24 Bile acid lysine conjugate
C24 Bile acid methionine conjugate
C24 Bile acid phenylalanine conjugate
C24 Bile acid serine conjugate
C24 Bile acid taurine conjugate
C24 Bile acid threonine conjugate
C24 Bile acid tryptophan conjugate
C24 Bile acid tyrosine conjugate
C24 Bile acid valine conjugate
C23 Bile acid
C26 Bile acid
Vitamin D2
Vitamin D3
Stigmastane
Ergostane
Campestane
Poriferastane
Gorgostane
Withanolide
Cardanolide
Bufanolide
Furostane
Furospirostane
Spirostane
Spironolactone
Cycloartane
Position
1
2
3
4
5
6
7
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Stereochemistry
alpha
beta
R (C22-C25 only)
S (C22-C25 only)
Substituent
hydro(H)
hydroxy
amino
methyl
oxo(keto)
epoxy
cyclopropyl
sulfate
acetate
COOH(C26 only)
Position
1
2
3
4
5
6
7
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Stereochemistry
alpha
beta
R (C22-C25 only)
S (C22-C25 only)
Substituent
hydro(H)
hydroxy
amino
methyl
oxo(keto)
epoxy
cyclopropyl
sulfate
acetate
COOH(C26 only)
Position
1
2
3
4
5
6
7
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Stereochemistry
alpha
beta
R (C22-C25 only)
S (C22-C25 only)
Substituent
hydro(H)
hydroxy
amino
methyl
oxo(keto)
epoxy
cyclopropyl
sulfate
acetate
COOH(C26 only)
Position
1
2
3
4
5
6
7
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Stereochemistry
alpha
beta
R (C22-C25 only)
S (C22-C25 only)
Substituent
hydro(H)
hydroxy
amino
methyl
oxo(keto)
epoxy
cyclopropyl
sulfate
acetate
COOH(C26 only)
Position
1
2
3
4
5
6
7
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Stereochemistry
alpha
beta
R (C22-C25 only)
S (C22-C25 only)
Substituent
hydro(H)
hydroxy
amino
methyl
oxo(keto)
epoxy
cyclopropyl
sulfate
acetate
COOH(C26 only)
Position
1
2
3
4
5
6
7
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Stereochemistry
alpha
beta
R (C22-C25 only)
S (C22-C25 only)
Substituent
hydro(H)
hydroxy
amino
methyl
oxo(keto)
epoxy
cyclopropyl
sulfate
acetate
COOH(C26 only)
Position
1
2
3
4
5
6
7
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Stereochemistry
alpha
beta
R (C22-C25 only)
S (C22-C25 only)
Substituent
hydro(H)
hydroxy
amino
methyl
oxo(keto)
epoxy
cyclopropyl
sulfate
acetate
COOH(C26 only)
Position
1
2
3
4
5
6
7
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Stereochemistry
alpha
beta
R (C22-C25 only)
S (C22-C25 only)
Substituent
hydro(H)
hydroxy
amino
methyl
oxo(keto)
epoxy
cyclopropyl
sulfate
acetate
COOH(C26 only)
C25 stereochemistry
R
S
(Applies only if core has C26 modifications)
Double bond position
1
2
3
4
5
6
7
8(9)
8(14)
9(11)
11
15
16
20(21)
20(22)
22
23
24
24(28)
25
Double bond position
1
2
3
4
5
6
7
8(9)
8(14)
9(11)
11
15
16
20(21)
20(22)
22
23
24
24(28)
25
Double bond position
1
2
3
4
5
6
7
8(9)
8(14)
9(11)
11
15
16
20(21)
20(22)
22
23
24
24(28)
25
Bile acid abbreviations and structures
Draw other lipid structures
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