Gossypetin

Gossypetin
Names


IUPAC name 2-(3,4-dihydroxyphenyl)-3,5,7,8-tetrahydroxychromen-4-one
Other names Articulatidin Equisporol 3,3',4',5,7,8-Hexahydroxyflavone 3,5,7,8,3',4'-Hexahydroxyflavone
Identifiers
CAS Number	489-35-0^Y
3D model (Jmol)	Interactive image
ChEBI	CHEBI:16400^N
ChEMBL	ChEMBL253570^N
ChemSpider	4444247^N
PubChem	5280647
InChI InChI=1S/C15H10O8/c16-6-2-1-5(3-7(6)17)14-13(22)12(21)10-8(18)4-9(19)11(20)15(10)23-14/h1-4,16-20,22H^N Key: YRRAGUMVDQQZIY-UHFFFAOYSA-N^N InChI=1/C15H10O8/c16-6-2-1-5(3-7(6)17)14-13(22)12(21)10-8(18)4-9(19)11(20)15(10)23-14/h1-4,16-20,22H Key: YRRAGUMVDQQZIY-UHFFFAOYAI
SMILES C1=CC(=C(C=C1C2=C(C(=O)C3=C(O2)C(=C(C=C3O)O)O)O)O)O
Properties
Chemical formula	C₁₅H₁₀O₈
Molar mass	318.23 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is ^YN ?)
Infobox references

Gossypetin is a flavonol, a type of flavonoid. It has been isolated from the flowers and the calyx of Hibiscus sabdariffa (roselle) and exhibits a strong antibacterial activity.^[1]^[2]

Gosspetin has been found to act as an antagonist of TrkB.^[3]

Metabolism

The enzyme 8-hydroxyquercetin 8-O-methyltransferase uses S-adenosyl methionine and gossypetin to produce S-adenosylhomocysteine and 3,5,7,3',4'-pentahydroxy-8-methoxyflavone. Recently it was shown that gossypetin has radioprotective activity[2].

References

↑ Antibacterial activity of gossypetin isolated from hibiscus sabdariffa
↑ Amitava Khan, Krishnendu Manna, Chinchubose, Mahuya Sinha, Dipesh Kr Das, Swaraj Bandhu Kesh, Anindita Chakrabarty, Asoke Banerji & Sanjit Dey: Gossypetin, a naturally occurring hexahydroxy flavones ameliorates gamma radiation mediated DNA damage International Journal Of Radiation Biology (2013):89(11): 965-975.
↑ Obianyo, Obiamaka; Ye, Keqiang (2013). "Novel small molecule activators of the Trk family of receptor tyrosine kinases". Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics. 1834 (10): 2213–2218. doi:10.1016/j.bbapap.2012.08.021. ISSN 1570-9639.

Flavonols and their conjugates

Backbone

Aglycones	3-Hydroxyflavone (synthetic) and derivatives

Flavonols

Aglycones

Conjugates

Glycosides of herbacetin

Rhodionin
Rhodiosin

Glycosides of kaempferol

Afzelin (Kaempferol 3-rhamnoside)
Astragalin (kaempferol 3-O-glucoside)
Kaempferitrin (kaempferol 3,7-dirhamnoside)
Juglanin (Kaempferol 3-O-arabinoside)
Kaempferol 3-alpha-L-arabinopyranoside
Kaempferol 3-alpha-D-arabinopyranoside
Kaempferol 7-alpha-L-arabinoside
Kaempferol 7-O-glucoside
Kaempferol 3-lathyroside
Kaempferol 4'-rhamnoside
Kaempferol 5-rhamnoside
Kaempferol 7-rhamnoside
Kaempferol 7-O-alpha-L-rhamnofuranoside
Kaempferol 3-xyloside
Kaempferol 7-xyloside
Robinin (kaempferol-3-O-robinoside-7-O-rhamnoside)
Kaempferol 3-O-rutinoside
Sophoraflavonoloside (Kaempferol 3-O-sophoroside)
Trifolin (Kaempferol 3-O-beta-D-galactoside)

Glycosides of myricetin

Betmidin (Myricetin 3-O-arabinoside)
Myricetin 3-O-rutinoside
Myricetin-3-O-neohesperidoside
Myricitrin (Myricetin 3-O-rhamnoside)

Conjugates of quercetin

Sulfates	Quercetin 3-O-sulfate Quercetin 3,3'-bissulfate Quercetin 3,4'-bissulfate

Glycosides	Avicularin (quercetin-3-O-α-L-arabinofuranoside) CTN-986 Guaijaverin (quercetin 3-O-arabinoside) Heliosin (quercetin 3-digalactoside) Hyperoside (quercetin 3-O-galactoside) Isoquercetin (quercetin 3-O-glucoside) Miquelianin (quercetin 3-O-glucuronide) Quercetin 3,4'-diglucoside Quercetin-3-sophorodide Quercitrin (quercetin 3-O-rhamnoside) Rutin (quercetin rutinoside) Reinutrin (quercetin-3-D-xyloside) Spiraeoside (quercetin 4'-O-glucoside) Taxillusin (galloylated 3-O-glucoside of quercetin°

O-Methylated flavonols

Aglycones

Glycosides

of isorhamnetin	Narcissin (Isorhamnetin 3-O-rutinoside) Isorhamnetin 3-O-glucoside Tamarixetin 7-rutinoside

other	Azalein (Azaleatin 3-O-α-L-rhamnoside) Centaurein (Centaureidin 7-O-glucoside) Eupalin (Eupalitin 3-0-rhamnoside) Eupatolin (Eupatolitin 3-O-rhamnoside) Jacein (Jaceidin 7-O-glucoside) Patulitrin (Patuletin 7-O-glucoside Xanthorhamnin (Rhamnetin glycoside)

Derivative flavonols

Aglycones	Noricaritin Dihydronoricaritin

Glycosides	Amurensin Icariin Phelloside Dihydrophelloside Rutin S

Pyranoflavonols

Aglycones	Karanjachromene

Furanoflavonols

Aglycones	Karanjin

Glycosides	Pongamoside A, B and C

Semisynthetic

Glycosides	Hydroxyethylrutosides Monoxerutin Troxerutin

Growth factor receptor modulators

Angiopoietin

Agonists: Angiopoietin 1
Angiopoietin 4

Antagonists: Angiopoietin 2
Angiopoietin 3

Antibodies: Evinacumab (against angiopoietin 3)
Nesvacumab (against angiopoietin 2)

CNTF

Agonists: Axokine
CNTF
Dapiclermin

EGF (ErbB)

EGF (ErbB1/HER1)	Agonists: Amphiregulin Betacellulin EGF (urogastrone) Epigen Epiregulin Heparin-binding EGF-like growth factor (HB-EGF) Murodermin Nepidermin Transforming growth factor alpha (TGFα) Antibodies: Cetuximab Depatuxizumab Depatuxizumab mafodotin Futuximab Imgatuzumab Matuzumab Necitumumab Nimotuzumab Panitumumab Zalutumumab Kinase inhibitors: Afatinib AG-490 Agerafenib Brigatinib Canertinib Dacomitinib Erlotinib Gefitinib Grandinin Icotinib Lapatinib Neratinib Osimertinib Vandetanib WHI-P 154

ErbB2/HER2	Agonists: Unknown/none Antibodies: Ertumaxomab Pertuzumab Trastuzumab Trastuzumab duocarmazine Trastuzumab emtansine Kinase inhibitors: Afatinib AG-490 Lapatinib Mubritinib Neratinib

ErbB3/HER3	Agonists: Neuregulins (heregulins) (1, 2, 6 (neuroglycan C)) Antibodies: Duligotumab Patritumab Seribantumab

ErbB4/HER4	Agonists: Betacellulin Epigen Heparin-binding EGF-like growth factor (HB-EGF) Neuregulins (heregulins) (1, 2, 3, 4, 5 (tomoregulin, TMEFF))

FGF

FGFR1	Agonists: Ersofermin FGF (1, 2 (bFGF), 3, 4, 5, 6, 8, 10 (KGF2), 20) Repifermin Trafermin Velafermin

FGFR2	Agonists: Ersofermin FGF (1, 2 (bFGF), 3, 4, 5, 6, 7 (KGF), 8, 9, 10 (KGF2), 17, 18, 22) Palifermin Repifermin Sprifermin Trafermin Antibodies: Aprutumab Aprutumab ixadotin

FGFR3	Agonists: Ersofermin FGF (1, 2 (bFGF), 4, 8, 9, 18, 23) Sprifermin Trafermin Antibodies: Burosumab (against FGF23)

FGFR4	Agonists: Ersofermin FGF (1, 2 (bFGF), 4, 6, 8, 9, 19) Trafermin

Unsorted	Agonists: FGF15/19

HGF (c-Met)

Agonists: Hepatocyte growth factor

Potentiators: Dihexa (PNB-0408)

Antibodies: Emibetuzumab
Ficlatuzumab
Flanvotumab
Onartuzumab
Rilotumumab
Telisotuzumab
Telisotuzumab vedotin

Kinase inhibitors: AM7 (drug)
AMG-458
Amuvatinib
BMS-777607
Cabozantinib
Crizotinib
Foretinib
Golvatinib
INCB28060
JNJ-38877605
K252a
MK-2461
PF-04217903
PF-2341066
PHA-665752
SU-11274
Tivantinib
Volitinib

IGF

IGF-1	Agonists: des(1-3)IGF-1 Insulin-like growth factor-1 (somatomedin C) IGF-1 LR3 Insulin-like growth factor-2 (somatomedin A) Insulin Mecasermin Mecasermin rinfabate Antagonists: BMS-754807 Antibodies: AVE1642 Cixutumumab Dalotuzumab Figitumumab Ganitumab Robatumumab R1507 Teprotumumab Kinase inhibitors: Linsitinib NVP-ADW742 NVP-AEW541 OSl-906

IGF-2	Agonists: Insulin-like growth factor-2 (somatomedin A) Antibodies: Dusigitumab

Others	Binding proteins: IGFBP (1, 2, 3, 4, 5, 6, 7) Cleavage products/derivatives with unknown target: Glypromate (GPE, (1-3)IGF-1) Trofinetide

LNGF

Agonists: BDNF
Cenegermin
NGF
NT-3
NT-4

Antagonists: SAR127963

Antibodies: Against NGF: Fasinumab
Fulranumab
Ranevetmab
Tanezumab

PDGF

Agonists: Becaplermin
Platelet-derived growth factor (A, B, C, D)

RET (GFL)

GFRα1	Agonists: Glial cell line-derived neurotrophic factor (GDNF) Liatermin Kinase inhibitors: Vandetanib

GFRα2	Agonists: Neurturin (NRTN) Kinase inhibitors: Vandetanib

GFRα3	Agonists: Artemin (ARTN) Kinase inhibitors: Vandetanib

GFRα4	Agonists: Persephin (PSPN) Kinase inhibitors: Vandetanib

Unsorted	Kinase inhibitors: Agerafenib

SCF (c-Kit)

Agonists: Ancestim
Stem cell factor

TGFβ

See here instead.

Trk

TrkA	Agonists: Amitriptyline Cenegermin Gambogic amide NGF Tavilermide Antagonists: FX007 Kinase inhibitors: Entrectinib K252a Lestaurtinib LOXO-101 Antibodies: Against NGF: Fasinumab Fulranumab Ranevetmab Tanezumab

TrkB	Agonists: 3,7-DHF 3,7,8,2'-THF 4'-DMA-7,8-DHF 7,3'-DHF 7,8-DHF 7,8,2'-THF 7,8,3'-THF Amitriptyline BDNF Deoxygedunin Diosmetin HIOC LM22A-4 N-Acetylserotonin NT-3 NT-4 Norwogonin (5,7,8-THF) R7 TDP6 Antagonists: ANA-12 Cyclotraxin B Gossypetin (3,5,7,8,3',4'-HHF) Kinase inhibitors: Entrectinib K252a Lestaurtinib LOXO-101

TrkC	Agonists: NT-3 Kinase inhibitors: Entrectinib K252a Lestaurtinib LOXO-101

VEGF

Agonists: Placental growth factor (PGF)
Telbermin
VEGF (A, B, C, D (FIGF))

Allosteric modulators: Cyclotraxin B

Decoy receptors: Aflibercept

Others

Additional growth factors: Adrenomedullin
Colony-stimulating factors (see here instead)
Connective tissue growth factor (CTGF)
Ephrins (A1, A2, A3, A4, A5, B1, B2, B3)
Erythropoietin (see here instead)
Glucose-6-phosphate isomerase (GPI; PGI, PHI, AMF)
Glia maturation factor (GMF)
Hepatoma-derived growth factor (HDGF)
Interleukins/T-cell growth factors (see here instead)
Leukemia inhibitory factor (LIF)
Macrophage-stimulating protein (MSP; HLP, HGFLP)
Midkine (NEGF2)
Migration-stimulating factor (MSF; PRG4)
Oncomodulin
Pituitary adenylate cyclase-activating peptide (PACAP)
Pleiotrophin
Renalase
Thrombopoietin (see here instead)
Wnt signaling proteins

Additional growth factor receptor modulators: Cerebrolysin (neurotrophin mixture)

See also: Peptide receptor modulators
Cytokine receptor modulators

This article is issued from Wikipedia - version of the 11/2/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.

Gossypetin

Metabolism

See also

References