Ochratoxin A 是一种典型的曲霉属真菌毒素。它是谷物、咖啡、葡萄、葡萄酒、啤酒等中常见的次级代谢产物。 Ochratoxin A is a mycotoxin isolated from the Aspergillus ochraceus mold, a common fungal presence on moldy food. Ochratoxin A demonstrates nephrotoxicity and teratogenesis in animals, and shows inhibition of bacterial, yeast, and liver FARSL (phenylalanyl-tRNA synthetases) competitive with phenylalanine. As these activities are partially attenuated by phenylalanine, Ochratoxin A is suggested to produce its effects through interacting with proteins that recognize phenylalanine as a substrate, and has been demonstrated to inhibit PAH (phenylalanine hydroxylase). Derivatives of Ochratoxin A with other amino acid moieties substituted for the phenylalanine-mimic portion of the molecule demonstrate inhibition of the aminoacyl tRNA synthetases respective to those amino acids. Ochratoxin A is described to enhance lipid peroxidation and also present DNA single strand breaks, both suggesting oxidative damage as a partial mediator of Ochratoxin A cellular effects, and EPR spectroscopy with a spin trap agent identified the production of hydroxyl radicals by Ochratoxin A in the presence of NADPH. The nephrotoxic effects of Ochratoxin A are shown to be prevented by SOD (superoxide dismutase) and catalase, further indicating oxidative damage as the mediator of Ochratoxin A toxicity. Ochratoxin A is also demonstrated to increase ATP-dependent Ca2+ pump activity in renal cortex endoplasmic reticulum.Ochratoxin A is one of the mycotoxins typically produced by the species of Aspergillus genus. It is a commonly found secondary metabolite in cereals, coffee, grape must, wine, beer, etc. A nephrotoxic mycotoxin inhibitor of phenylalanyl-tRNA synthetases.
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Ochratoxin A
Dangerous GoodsCAS number：303-47-9 molecular formula：C20H18ClNO6
overview
compound introduction
Specs
| Chinese alias | N-[(3R)-(5-氯-8-羟基-3-甲基-1-氧代-7-异苯并二氢吡喃基)羰基]-L-苯丙氨酸 | ||
| English alias | OCHRATOXIN A | 3R14S-Ochratoxin A | Ochratoxin A-BSA conjugate from Aspergillus ochraceus | CHEBI:7719 | OTA | Phenylalanine - ochratoxin A | Ochratoxin A(OTA) | Antibiotic 9663 | (-)-N-((5-Chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl)-3-phenyl | ||
| CAS number | 303-47-9 | molecular formula | C20H18ClNO6 |
| molecular weight | 403.81 g/mol | Exact mass | - |
| PSA | 113.000 Ų | logp | 4.700 |
numbering system
No numbering system information yet
physicochemical properties
No physical and chemical property information yet
Safety information
pictogram：
GHS06 , GHS08
Signal word：
Danger
Hazard Statement：
H351: 怀疑引起遗传缺陷 H300: 吞咽致命
Statement of Preventive Measures：
P305+P351+P338: 如进入眼睛：用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出，取出隐形眼镜。继续冲洗。 P273: 避免释放到环境中。 P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。 P321: 特殊处理（请参阅此标签上的...）。 P405: 密闭存放 P501: 将内容物/容器处理到。。。 P264: 处理后要彻底洗手。 P260: 不要吸入灰尘/烟雾/气体/雾/蒸汽/喷雾。 P284: 如果通风不良，请佩戴呼吸防护装置。 P271: 仅在室外或通风良好的地方使用。 P270
WGK Germany：
3
Personal protective equipment：
Faceshields,full-face respirator (US),Gloves,Goggles,multi-purpose combination respirator cartridge (US),type ABEK (EN14387) respirator filter
UN Number：
2811
General hazardous chemicals：
一般危化品
Packing Group：
Ⅰ
Production methods and uses
No production method and use information yet
Related
upstream information
No upstream information yet
downstream information
No downstream information yet
MSDS
Found 1 shareMSDS
303-47-9 | ochratoxin A | ochratoxin A
