Classification Term: 168652
Proanthocyanidins [PK1203] (ontology term: a571c311e2cc98db0184fff9be6c4624)
Proanthocyanidins [PK1203]
found 19 associated metabolites at sub_class metabolite taxonomy ontology rank level.
Ancestor: Flavonoids [PK12]
Child Taxonomies: There is no child term of current ontology term.
Epigallocatechin gallate
Epigallocatechin gallate (EGCG) is the principal catechin in tea from Camellia sinensis, the most consumed beverage worldwide (after water). Depending on brew time and temperature, a single cup of green tea may contain 100-200 mg EGCG. To control the dose of EGCG administered in experimental studies, green tea solids (GTS) or capsules of green tea extract standardized to EGCG content are often employed. However, there is considerable variability in the EGCG content of commercially available dietary supplements, ranging from 12-143\\\\\\\\% of the tablet or capsule weight. While standardizing tea preparations to EGCG or using highly purified EGCG for research presents an important strategy for the conduct of precise studies as well as the ability to replicate experiments, it is worth noting this approach limits the potential contributions and possible synergy with other bioactive tea ingredients, including caffeine and other flavonoids. Human studies of the bioavailability of green tea catechins reveal these compounds to be poorly absorbed, with <0.1\\\\\\\\% of ingested catechins appearing in blood. Most ingested EGCG is rapidly cleared from blood with an elimination half-life of {approx}3 h and preferentially excreted via bile to the colon. The growing interest in the role of EGCG in health promotion and disease prevention is reflected by an exponential growth of research publications in this field. (J Am Coll Nutr. 2007 Aug;26(4):362S-365S). (-)-epigallocatechin 3-gallate is a gallate ester obtained by the formal condensation of gallic acid with the (3R)-hydroxy group of (-)-epigallocatechin. It has a role as an antineoplastic agent, an antioxidant, a Hsp90 inhibitor, a neuroprotective agent, a plant metabolite, a geroprotector and an apoptosis inducer. It is a gallate ester, a polyphenol and a member of flavans. It is functionally related to a (-)-epigallocatechin. Epigallocatechin gallate has been investigated for the treatment of Hypertension and Diabetic Nephropathy. (-)-Epigallocatechin gallate is a natural product found in Limoniastrum guyonianum, Scurrula atropurpurea, and other organisms with data available. Epigallocatechin Gallate is a phenolic antioxidant found in a number of plants such as green and black tea. It inhibits cellular oxidation and prevents free radical damage to cells. It is under study as a potential cancer chemopreventive agent. (NCI) A gallate ester obtained by the formal condensation of gallic acid with the (3R)-hydroxy group of (-)-epigallocatechin. COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D002491 - Central Nervous System Agents > D018696 - Neuroprotective Agents D020011 - Protective Agents > D016588 - Anticarcinogenic Agents D020011 - Protective Agents > D016587 - Antimutagenic Agents D020011 - Protective Agents > D000975 - Antioxidants D000970 - Antineoplastic Agents Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS CONFIDENCE standard compound; INTERNAL_ID 808; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2759; ORIGINAL_PRECURSOR_SCAN_NO 2758 CONFIDENCE standard compound; INTERNAL_ID 808; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2748; ORIGINAL_PRECURSOR_SCAN_NO 2746 CONFIDENCE standard compound; INTERNAL_ID 808; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2762; ORIGINAL_PRECURSOR_SCAN_NO 2760 ORIGINAL_ACQUISITION_NO 2759; CONFIDENCE standard compound; INTERNAL_ID 808; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_PRECURSOR_SCAN_NO 2758 CONFIDENCE standard compound; INTERNAL_ID 808; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2759; ORIGINAL_PRECURSOR_SCAN_NO 2756 CONFIDENCE standard compound; INTERNAL_ID 808; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 5920; ORIGINAL_PRECURSOR_SCAN_NO 5917 CONFIDENCE standard compound; INTERNAL_ID 808; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 5910; ORIGINAL_PRECURSOR_SCAN_NO 5905 CONFIDENCE standard compound; INTERNAL_ID 808; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2828; ORIGINAL_PRECURSOR_SCAN_NO 2826 ORIGINAL_PRECURSOR_SCAN_NO 2760; CONFIDENCE standard compound; INTERNAL_ID 808; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2762 CONFIDENCE standard compound; INTERNAL_ID 808; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 5924; ORIGINAL_PRECURSOR_SCAN_NO 5919 CONFIDENCE standard compound; INTERNAL_ID 808; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2754; ORIGINAL_PRECURSOR_SCAN_NO 2752 CONFIDENCE standard compound; INTERNAL_ID 179 Annotation level-1 (-)-Epigallocatechin Gallate (EGCG) is a major polyphenol in green tea, which can inhibit cell proliferation and induce cell apoptosis. (-)-Epigallocatechin Gallate inhibits glutamate dehydrogenase 1/2 (GDH1/2, GLUD1/2) activity. (-)-Epigallocatechin Gallate has a potent anticancer, antioxidant and anti-inflammatory properties against various types of cancers such as colorectal cancer, myeloid leukemia, thyroid carcinoma[1][2][3][4]. (-)-Epigallocatechin Gallate (EGCG) is a major polyphenol in green tea, which can inhibit cell proliferation and induce cell apoptosis. (-)-Epigallocatechin Gallate inhibits glutamate dehydrogenase 1/2 (GDH1/2, GLUD1/2) activity. (-)-Epigallocatechin Gallate has a potent anticancer, antioxidant and anti-inflammatory properties against various types of cancers such as colorectal cancer, myeloid leukemia, thyroid carcinoma[1][2][3][4]. (-)-Epigallocatechin Gallate (EGCG) is a major polyphenol in green tea, which can inhibit cell proliferation and induce cell apoptosis. (-)-Epigallocatechin Gallate inhibits glutamate dehydrogenase 1/2 (GDH1/2, GLUD1/2) activity. (-)-Epigallocatechin Gallate has a potent anticancer, antioxidant and anti-inflammatory properties against various types of cancers such as colorectal cancer, myeloid leukemia, thyroid carcinoma[1][2][3][4]. (-)-Epigallocatechin Gallate (EGCG) is a major polyphenol in green tea, which can inhibit cell proliferation and induce cell apoptosis. (-)-Epigallocatechin Gallate inhibits glutamate dehydrogenase 1/2 (GDH1/2, GLUD1/2) activity. (-)-Epigallocatechin Gallate has a potent anticancer, antioxidant and anti-inflammatory properties against various types of cancers such as colorectal cancer, myeloid leukemia, thyroid carcinoma[1][2][3][4]. (-)-Epigallocatechin Gallate (EGCG) is a major polyphenol in green tea, which can inhibit cell proliferation and induce cell apoptosis. (-)-Epigallocatechin Gallate inhibits glutamate dehydrogenase 1/2 (GDH1/2, GLUD1/2) activity. (-)-Epigallocatechin Gallate has a potent anticancer, antioxidant and anti-inflammatory properties against various types of cancers such as colorectal cancer, myeloid leukemia, thyroid carcinoma[1][2][3][4]. (-)-Epigallocatechin Gallate (EGCG) is a major polyphenol in green tea, which can inhibit cell proliferation and induce cell apoptosis. (-)-Epigallocatechin Gallate inhibits glutamate dehydrogenase 1/2 (GDH1/2, GLUD1/2) activity. (-)-Epigallocatechin Gallate has a potent anticancer, antioxidant and anti-inflammatory properties against various types of cancers such as colorectal cancer, myeloid leukemia, thyroid carcinoma[1][2][3][4].
Procyanidin B2
Procyanidin B2 is a proanthocyanidin consisting of two molecules of (-)-epicatechin joined by a bond between positions 4 and 8 in a beta-configuration. Procyanidin B2 can be found in Cinchona pubescens (Chinchona, in the rind, bark and cortex), in Cinnamomum verum (Ceylon cinnamon, in the rind, bark and cortex), in Crataegus monogyna (Common hawthorn, in the flower and blossom), in Uncaria guianensis (Cats claw, in the root), in Vitis vinifera (Common grape vine, in the leaf), in Litchi chinensis (litchi, in the pericarp), in the apple, in Ecdysanthera utilis and in red wine. It has a role as a metabolite and an antioxidant. It is a hydroxyflavan, a proanthocyanidin, a biflavonoid and a polyphenol. It is functionally related to a (-)-epicatechin. Procyanidin B2 is a natural product found in Begonia fagifolia, Saraca asoca, and other organisms with data available. See also: Cocoa (part of); Primula veris flower (part of). A proanthocyanidin consisting of two molecules of (-)-epicatechin joined by a bond between positions 4 and 8 in a beta-configuration. Procyanidin B2 can be found in Cinchona pubescens (Chinchona, in the rind, bark and cortex), in Cinnamomum verum (Ceylon cinnamon, in the rind, bark and cortex), in Crataegus monogyna (Common hawthorn, in the flower and blossom), in Uncaria guianensis (Cats claw, in the root), in Vitis vinifera (Common grape vine, in the leaf), in Litchi chinensis (litchi, in the pericarp), in the apple, in Ecdysanthera utilis and in red wine. Present in red wine. Procyanidin B2 is found in many foods, some of which are alcoholic beverages, sherry, bilberry, and yellow zucchini. Procyanidin B2 is found in alcoholic beverages. Procyanidin B2 is present in red wine. Procyanidin B2 is a natural flavonoid, with anti-cancer, antioxidant activities. Procyanidin B2 is a natural flavonoid, with anti-cancer, antioxidant activities.
Cinnamtannin III
C90H74O36 (1730.3959604000001)
Isolated from the bark of Cinnamomum cassia (Chinese cinnamon). Cinnamtannin III is found in chinese cinnamon and herbs and spices. Cinnamtannin III is found in chinese cinnamon. Cinnamtannin III is isolated from the bark of Cinnamomum cassia (Chinese cinnamon).
Epigallocatechin-(4beta->8)-epicatechin 3-O-gallate
Epigallocatechin-(4beta->8)-epicatechin 3-O-gallate is found in tea. Epigallocatechin-(4beta->8)-epicatechin 3-O-gallate is isolated from tea Thea sinensis. Isolated from tea Thea sinensis. Epigallocatechin-(4beta->8)-epicatechin 3-gallate is found in tea.
Prodelphinidin B
Prodelphinidin B is found in alcoholic beverages. Prodelphinidin B is isolated from beer Prodelphinidin is a name for the polymeric tannins composed of gallocatechin (Porter, 1992). Isolated from beer
Mahuannin D
A proanthocyanidin isolated form Ephedra sinica.
Procyanidin
Procyanidin B4 is a proanthocyanidin obtained by the condensation of (-)-epicatechin and (+)-catechin units. It has a role as an antioxidant, an EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor and an antineoplastic agent. It is a proanthocyanidin and a hydroxyflavan. It is functionally related to a (-)-epicatechin and a (+)-catechin. Procyanidin B4 is a natural product found in Cinnamomum iners, Rosa henryi, and other organisms with data available. Procyanidins are a subclass of flavonoids found in commonly consumed foods such as red wine, chocolate, cranberry juice and apples and have gain attraction for their potential health benefits. Occurs in Rubus fruticosus (blackberry) and Rubus idaeus (raspberry). Procyanidin B4 is found in many foods, some of which are pear, bilberry, common wheat, and green bean. A proanthocyanidin obtained by the condensation of (-)-epicatechin and (+)-catechin units.
Procyanidin B1
Procyanidin B1 is a proanthocyanidin consisting of (-)-epicatechin and (+)-catechin units joined by a bond between positions 4 and 8 respectively in a beta-configuration.. Procyanidin B1 can be found in Cinnamomum verum (Ceylon cinnamon, in the rind, bark or cortex), in Uncaria guianensis (cats claw, in the root), and in Vitis vinifera (common grape vine, in the leaf) or in peach. It has a role as a metabolite, an EC 3.4.21.5 (thrombin) inhibitor and an anti-inflammatory agent. It is a hydroxyflavan, a proanthocyanidin, a biflavonoid and a polyphenol. It is functionally related to a (-)-epicatechin and a (+)-catechin. Procyanidin B1 is a natural product found in Quercus miyagii, Saraca asoca, and other organisms with data available. See also: Garcinia mangostana fruit rind (part of); Maritime Pine (part of). A proanthocyanidin consisting of (-)-epicatechin and (+)-catechin units joined by a bond between positions 4 and 8 respectively in a beta-configuration.. Procyanidin B1 can be found in Cinnamomum verum (Ceylon cinnamon, in the rind, bark or cortex), in Uncaria guianensis (cats claw, in the root), and in Vitis vinifera (common grape vine, in the leaf) or in peach. Present in red wine. Procyanidin B1 is found in many foods, some of which are common bean, green bell pepper, common hazelnut, and guava. Procyanidin B1 is found in alcoholic beverages. Procyanidin B1 is present in red win Procyanidin B1 is a polyphenolic flavonoid isolated from commonly eaten fruits, binds to TLR4/MD-2 complex, and has anti-inflammatory activity. Procyanidin B1 is a polyphenolic flavonoid isolated from commonly eaten fruits, binds to TLR4/MD-2 complex, and has anti-inflammatory activity.
Procyanidin B3
Procyanidin B3 is a proanthocyanidin consisting of two molecules of (+)-catechin joined by a bond between positions 4 and 8 in alpha-configuration. It can be found in red wine, in barley, in beer, in peach or in Jatropha macrantha, the Huanarpo Macho. It has a role as a metabolite, an antioxidant, an anti-inflammatory agent and an EC 2.3.1.48 (histone acetyltransferase) inhibitor. It is a hydroxyflavan, a proanthocyanidin, a biflavonoid and a polyphenol. It is functionally related to a (+)-catechin. Procyanidin B3 is a natural product found in Quercus dentata, Quercus miyagii, and other organisms with data available. Present in red wine. Occurs in Fragaria subspecies Procyanidin B3 is found in many foods, some of which are quince, strawberry, bilberry, and japanese persimmon. Procyanidin B3 is found in alcoholic beverages. Procyanidin B3 is present in red wine. Procyanidin B3 occurs in Fragaria species. Procyanidin B3 is a natural product, acts as a specific HAT inhibitor, binds to the other site of p300 instead of the active site, selectively inhibits p300-mediated androgen receptor acetylation. Procyanidin B3 has no effect on HDAC or HMT (histone methyltransferase)[1]. Procyanidin B3 is a natural product, acts as a specific HAT inhibitor, binds to the other site of p300 instead of the active site, selectively inhibits p300-mediated androgen receptor acetylation. Procyanidin B3 has no effect on HDAC or HMT (histone methyltransferase)[1].
ent-Fisetinidol-(4beta->8)-catechin-(6->4beta)-ent-fisetinidol
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.
Cinnamtannin a4
C90H74O36 (1730.3959604000001)
A proanthocyanidin isolated from Cinnamomum cassia.