Page last updated: 2024-12-08

theasinensin a

Description Research Excerpts Clinical Trials Roles Classes Pathways Study Profile Bioassays Related Drugs Related Conditions Protein Interactions Research Growth Market Indicators

Description

theasinensin A: a tea polyphenol formed from (-)-epigallocatechin gallate, suppresses antibiotic resistance of methicillin-resistant Staphylococcus aureus [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

theasinensin A : A biflavonoid that is obtained by coupling of two molecules of (-)-epigallocatechin 3-gallate resulting in a bond between positions C-2 of the hydroxyphenyl ring. It is a natural product found in oolong tea. [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Cross-References

ID SourceID
PubMed CID442543
CHEMBL ID349197
CHEBI ID9518
SCHEMBL ID449649
MeSH IDM0460494

Synonyms (35)

Synonym
DIVK1C_006283
KBIO1_001227
SPECTRUM_000210 ,
SPECTRUM5_000886
BSPBIO_003359
theasinensin a
89064-31-3
C09972
bgcdg
theasinensin d
2',2'''-bisepigallocatechin digallate
benzoic acid, 3,4,5-trihydroxy-, (4,4',5,5',6,6'-hexahydroxy[1,1'-biphenyl]-2,2'-diyl)bis[(2r,3r)-3,4-dihydro-5,7-dihydroxy-2h-1-benzopyran-2,3-diyl] ester
[(2r,3r)-2-[2-[6-[(2r,3r)-5,7-dihydroxy-3-(3,4,5-trihydroxybenzoyl)oxy-chroman-2-yl]-2,3,4-trihydroxy-phenyl]-3,4,5-trihydroxy-phenyl]-5,7-dihydroxy-chroman-3-yl] 3,4,5-trihydroxybenzoate
KBIOSS_000690
KBIO2_005826
KBIO3_002861
KBIOGR_001292
KBIO2_000690
KBIO2_003258
SPECTRUM4_000886
SPECTRUM3_001800
SPECTRUM2_000166
SPBIO_000031
SPECPLUS_000187 ,
NCGC00178119-01
2-(2-{6-[5,7-dihydroxy-3-(3,4,5-trihydroxyphenylcarbonyloxy)-(2r,3r)-3,4-dihydro-2h-2-chromenyl]-2,3,4-trihydroxyphenyl}-3,4,5-trihydroxyphenyl)-5,7-dihydroxy-3-(3,4,5-trihydroxyphenylcarbonyloxy)-(2r,3r)-3,4-dihydro-2h-chromene
bdbm50240891
CHEMBL349197 ,
chebi:9518 ,
CCG-38377
SCHEMBL449649
2',2'-bisepigallocatechin digallate
DTXSID50331871
theasinensin a (d)
Q27108424

Research Excerpts

Overview

Theasinensin A (TSA) is a major group of catechin dimers mainly found in oolong tea and black tea.

ExcerptReferenceRelevance
"Theasinensin A (TSA) is a major group of catechin dimers mainly found in oolong tea and black tea. "( Antimelanogenesis Effects of Theasinensin A.
Cho, JY; Hong, YD; Hwang, KH; Jung, YJ; Kim, D; Kim, E; Kopalli, SR; Lim, HY; Park, SH; Sung, GH, 2021
)
2.36

Bioavailability

ExcerptReferenceRelevance
"Due to low bioavailability of dietary phenolic compounds in small intestine, their metabolism by gut microbiota is gaining increasing attention."( Insights in the Recalcitrance of Theasinensin A to Human Gut Microbial Degradation.
Bruins, ME; de Bruijn, WJC; Liu, Z; Sanders, MG; Vincken, JP; Wang, S, 2021
)
0.9
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Roles (8)

RoleDescription
apoptosis inducerAny substance that induces the process of apoptosis (programmed cell death) in multi-celled organisms.
anti-inflammatory agentAny compound that has anti-inflammatory effects.
hypoglycemic agentA drug which lowers the blood glucose level.
hepatoprotective agentAny compound that is able to prevent damage to the liver.
EC 3.2.1.20 (alpha-glucosidase) inhibitorAn EC 3.2.1.* (glycosidase) inhibitor that interferes with the action of alpha-glucosidase (EC 3.2.1.20).
melanin synthesis inhibitorA depigmentation agent which inhibits the synthesis of melanin.
plant metaboliteAny eukaryotic metabolite produced during a metabolic reaction in plants, the kingdom that include flowering plants, conifers and other gymnosperms.
anticoronaviral agentAny antiviral agent which inhibits the activity of coronaviruses.
[role information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Drug Classes (3)

ClassDescription
proanthocyanidinA flavonoid oligomer obtained by the the condensation of two or more units of hydroxyflavans.
gallate esterA benzoate ester that is any ester resulting from the formal condensation of the carboxy group of gallic acid (3,4,5-trihydroxybenzoic acid) with an alcoholic or phenolic hydroxy group.
biflavonoidA flavonoid oligomer that is obtained by the oxidative coupling of at least two units of aryl-substituted benzopyran rings or its substituted derivatives, resulting in the two ring systems being joined together by a single atom or bond.
[compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Protein Targets (1)

Inhibition Measurements

ProteinTaxonomyMeasurementAverageMin (ref.)Avg (ref.)Max (ref.)Bioassay(s)
Squalene monooxygenase Rattus norvegicus (Norway rat)IC50 (µMol)0.13000.06102.344610.0000AID357310
[prepared from compound, protein, and bioassay information from National Library of Medicine (NLM), extracted Dec-2023]

Bioassays (5)

Assay IDTitleYearJournalArticle
AID1159550Human Phosphogluconate dehydrogenase (6PGD) Inhibitor Screening2015Nature cell biology, Nov, Volume: 17, Issue:11
6-Phosphogluconate dehydrogenase links oxidative PPP, lipogenesis and tumour growth by inhibiting LKB1-AMPK signalling.
AID977602Inhibition of sodium fluorescein uptake in OATP1B3-transfected CHO cells at an equimolar substrate-inhibitor concentration of 10 uM2013Molecular pharmacology, Jun, Volume: 83, Issue:6
Structure-based identification of OATP1B1/3 inhibitors.
AID977599Inhibition of sodium fluorescein uptake in OATP1B1-transfected CHO cells at an equimolar substrate-inhibitor concentration of 10 uM2013Molecular pharmacology, Jun, Volume: 83, Issue:6
Structure-based identification of OATP1B1/3 inhibitors.
AID357310Inhibition of rat squalene epoxidase2001Journal of natural products, Aug, Volume: 64, Issue:8
Ellagitannins and hexahydroxydiphenoyl esters as inhibitors of vertebrate squalene epoxidase.
AID1159607Screen for inhibitors of RMI FANCM (MM2) intereaction2016Journal of biomolecular screening, Jul, Volume: 21, Issue:6
A High-Throughput Screening Strategy to Identify Protein-Protein Interaction Inhibitors That Block the Fanconi Anemia DNA Repair Pathway.
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (29)

TimeframeStudies, This Drug (%)All Drugs %
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's4 (13.79)29.6817
2010's18 (62.07)24.3611
2020's7 (24.14)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 20.87

According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be moderate demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index20.87 (24.57)
Research Supply Index3.40 (2.92)
Research Growth Index4.97 (4.65)
Search Engine Demand Index18.60 (26.88)
Search Engine Supply Index2.00 (0.95)

This Compound (20.87)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials0 (0.00%)5.53%
Reviews1 (3.45%)6.00%
Case Studies0 (0.00%)4.05%
Observational0 (0.00%)0.25%
Other28 (96.55%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]