Page last updated: 2024-12-06

ochratoxin b

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

Description

ochratoxin B: structure given in first source [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

ochratoxin B : A phenylalanine derivative resulting from the formal condensation of the amino group of L-phenylalanine with the carboxy group of (3R)-8-hydroxy-3-methyl-1-oxo-3,4-dihydro-1H-2-benzopyran-7-carboxylic acid. Ochratoxin B differs from the more naturally abundant ochratoxin A in the absence of the dihydroisocoumarin chlorine atom. It has cytotoxic effects on kidney and liver cells in vitro but only minor effects in vivo, due to its rapid metabolism and excretion. It inhibits cell proliferation of human liver HepG2 cells at doses as low as 1 mug/ ml but lacks the genotoxic activity of ochratoxin A, even at higher concentrations. [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 CID20966
CHEBI ID141524
SCHEMBL ID455061
MeSH IDM0131924

Synonyms (31)

Synonym
ochratoxin b
ccris 5094
hsdb 3438
alanine, n-((8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl)-3-phenyl-, (-)-
l-phenylalanine, n-((3,4-dihydro-8-hydroxy-3-methyl-1-oxo-1h-2-benzopyran-7-yl)carbonyl)-, (r)-
brn 1300160
OTB ,
(2s)-2-[[(3r)-8-hydroxy-3-methyl-1-oxo-3,4-dihydroisochromene-7-carbonyl]amino]-3-phenylpropanoic acid
n-{[(3r)-8-hydroxy-3-methyl-1-oxo-3,4-dihydro-1h-isochromen-7-yl]carbonyl}-l-phenylalanine
CHEBI:141524
(2s)-2-{[(3r)-8-hydroxy-3-methyl-1-oxo-3,4-dihydro-1h-2-benzopyran-7-carbonyl]amino}-3-phenylpropanoic acid
4825-86-9
n-[(3r)-8-hydroxy-3-methyl-1-oxo-3,4-dihydro-1h-2-benzopyran-7-carbonyl]-l-phenylalanine
l-phenylalanine, n-(((3r)-3,4-dihydro-8-hydroxy-3-methyl-1-oxo-1h-2-benzopyran-7-yl)carbonyl)-
ecj5ws94n2 ,
unii-ecj5ws94n2
l-phenylalanine, n-[[(3r)-3,4-dihydro-8-hydroxy-3-methyl-1-oxo-1h-2-benzopyran-7-yl]carbonyl]-
alanine, n-((8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl)-3-phenyl-, l-
ochratoxin b [mi]
ochratoxin b [hsdb]
SCHEMBL455061
DAEYIVCTQUFNTM-ABAIWWIYSA-N
l-phenylalanine, n-[(3,4-dihydro-8-hydroxy-3-methyl-1-oxo-1h-2-benzopyran-7-yl)carbonyl]-, (r)-
alanine, n-[(8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl]-3-phenyl-, (-)-
DTXSID1075301
AKOS030242138
ochratoxin b(otb)
Q3880769
(s)-2-((r)-8-hydroxy-3-methyl-1-oxoisochroman-7-carboxamido)-3-phenylpropanoic acid
l-phenylalanine,n-[[(3r)-3,4-dihydro-8-hydroxy-3-methyl-1-oxo-1h-2-benzopyran-7-yl]carbonyl]-
ochratoxin b 10 microg/ml in acetonitrile

Research Excerpts

Toxicity

Ochratoxin B considerably reduces the toxic effects of ochrat toxin A.

ExcerptReferenceRelevance
" The present study was designed to determine the toxic potential of three structurally related ochratoxins: ochratoxin A (OTA), ochratoxin B (OTB) and the heat-induced 3S-epimer of OTA (3S-OTA) recently discovered in roasted coffee and human serum."( Reduction of ochratoxin A toxicity by heat-induced epimerization. In vitro effects of ochratoxins on embryonic chick meningeal and other cell cultures.
Bruinink, A; Rasonyi, T; Sidler, C, 1997
)
0.5
" Altered dosing strategy, but not seeding density, consistently influenced cytotoxicity: CIT was more toxic to cells when added at the time of seeding, whereas OA was more toxic when added 24 h after cultures were seeded."( Cytotoxicity of nephrotoxic fungal toxins to kidney-derived LLC-PK1 and OK cell lines.
Armstrong, CL; Bondy, GS, 1998
)
0.3
" OTA is regarded as the most toxic family member, however, other ochratoxins or their metabolites and, in particular, ochratoxin mixtures or combinations with other mycotoxins may represent serious threats to human and animal health."( Comparative Ochratoxin Toxicity: A Review of the Available Data.
Bingle, LE; Heussner, AH, 2015
)
0.42

Dosage Studied

ExcerptRelevanceReference
" While cytotoxicity assays have proven useful for establishing relative toxicity and structure function relationships within groups of fungal toxins, a drawback of in vitro bioassays is their susceptibility to variation depending on endpoint, target cell, and dosing strategy."( Cytotoxicity of nephrotoxic fungal toxins to kidney-derived LLC-PK1 and OK cell lines.
Armstrong, CL; Bondy, GS, 1998
)
0.3
" All cell types were characterized for epithelial origin and growth patterns and following optimization of dosing strategies and assay procedures, a strict study design was implemented to avoid systemic variations."( Species- and sex-specific renal cytotoxicity of ochratoxin A and B in vitro.
Dietrich, DR; Heussner, AH; O'Brien, E; Stack, ME, 2001
)
0.31
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Roles (4)

RoleDescription
Aspergillus metaboliteAny fungal metabolite produced during a metabolic reaction in the mould, Aspergillus.
Penicillium metaboliteAny fungal metabolite produced during a metabolic reaction in Penicillium.
mycotoxinPoisonous substance produced by fungi.
calcium channel blockerOne of a class of drugs that acts by selective inhibition of calcium influx through cell membranes or on the release and binding of calcium in intracellular pools.
[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 (4)

ClassDescription
phenylalanine derivativeAn amino acid derivative resulting from reaction of alanine at the amino group or the carboxy group, or from the replacement of any hydrogen of phenylalanine by a heteroatom. The definition normally excludes peptides containing phenylalanine residues.
N-acyl-L-phenylalanineAny N-acyl-L-amino acid obtained by the formal N-acylation of L-phenylalanine.
isochromanes
monocarboxylic acidAn oxoacid containing a single carboxy group.
[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]

Research

Studies (60)

TimeframeStudies, This Drug (%)All Drugs %
pre-19902 (3.33)18.7374
1990's6 (10.00)18.2507
2000's19 (31.67)29.6817
2010's25 (41.67)24.3611
2020's8 (13.33)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 22.65

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 Index22.65 (24.57)
Research Supply Index4.13 (2.92)
Research Growth Index5.14 (4.65)
Search Engine Demand Index23.28 (26.88)
Search Engine Supply Index2.00 (0.95)

This Compound (22.65)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials0 (0.00%)5.53%
Reviews2 (3.28%)6.00%
Case Studies0 (0.00%)4.05%
Observational0 (0.00%)0.25%
Other59 (96.72%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]