化工社化工社 化学情報印刷レポート · 研究参考用
ペニトレムA
ペニトレムA · ペニトレムA, PENICILLIUM PAXILLI · (1S,2R,5S,6S,8R,9S,10R,12S,15R,16S,25R,27S,28R)-21-クロロ-15,16,33,33-テトラメチル-24-メチリデン-10-(プロパ-1-エン-2-イル)-7,11,32-トリオキサ-18-アザデカシクロ[25.4.2.02,16.05,15.06,8.06,12.017,31.019,30.022,29.025,28]トリトリアコンタ-17(31),19,21,29-テトラエン-5,9,28-トリオール · PENITREM A · TREMORTIN A · JDUWHZOLEDOQSR-JKPSMKLGSA-N · Penitrem A Nsc354845 · Penitrem A, blocker of KCa1.1

識別子と物理属性
| CAS No. | 12627-35-9 |
|---|---|
| 分子式 | C37H44ClNO6 |
| 平均分子量 | 634.2 g/mol |
| 単同位体質量 | 633.2857158 g/mol |
| SMILES | C=C(C)[C@H]1O[C@H]2CC[C@@]3(C)[C@@](O)(CC[C@H]4[C@@H]5OC(C)(C)[C@H]6C[C@@H]7C(=C)Cc8c(Cl)cc9[nH]c(c5c9c8C76O)[C@@]43C)[C@@]23O[C@H]3[C@H]1O |
| InChIKey | JDUWHZOLEDOQSR-JHMXYHNCSA-N |
| PubChem CID | 337313 |
| 現地名 | ペニトレムA |
化学・物理的性質
| XLogP | 3.8 |
|---|---|
| 極性表面積 | 107 |
| 水素結合供与体数 | 4 |
| 水素結合受容体数 | 6 |
| 回転可能結合数 | 1 |
| 重原子数 | 45 |
| 形式電荷 | 0 |
| 複雑度 | 1,420 |
| 融点 | 238°C |
| 密度 | 1.0241 (rough estimate) |
| 屈折率 | 1.6000 (estimate) |
| 貯蔵条件 | 2-8°C |
| 溶解度 | DMSO に可溶 (最大 6 mg/ml) |
| 外観・状態 | 白い固体。 |
| pKa(酸解離定数) | 13.22±0.70(Predicted) |
| 色 | 非晶質固体 |
| 安定性 | -20°C の DMSO 溶液で最大 3 か月間保存できます。 |
| InChIKey | JDUWHZOLEDOQSR-JKPSMKLGSA-N |
化学的特性
Solid
安全性と法規制
| Treatment | To control severe tremors caused by tremorgenic mycotoxins, methocarbamol should be administered. Generalized seizures may be treated with diazepam followed by methocarbamol or a barbiturate such as pentobarbital sodium. Gastric lavage should be performed and activated charcoal administered to limit further absorption of toxins. (A744) |
|---|---|
| 健康影響 | Tremorgenic mycotoxins affect central nervous system activity. They cause a neurological disease of horses and cattle known as "staggers syndrome". Penitrem A is also genotoxic and causes DNA damage. (A2974, A3026) |
| 暴露経路 | Oral, dermal, inhalation, and parenteral (contaminated drugs). (A3101) |
| 毒性の概要 | Tremorgenic mycotoxins exert their toxic effects by interfering with neurotransmitter release, possibly by causing degeneration of nerve terminals. They are thought to inhibit gamma-aminobutyric acid (GABA) receptors, both pre- and postsynaptic, as well as inhibit transmitter breakdown at the GABA-T receptors. This would initially increase neurotransmitter levels, potentiating the GABA-induced chloride current, then lead to decreased levels of neurotransmitter in the synapse. Penitrem A is also know to increase the spontaneous release of the neurotransmitters glutamate and aspartate from cerebrocortical synaptosomes. In addition, it inhibits presynaptic high-conductance Ca+2 activated maxi-K+ channels in the smooth muscle. Penitrem A is also genotoxic and causes DNA damage. (A2976, A2991, A2993, A3026) |
| Signs and Symptoms | Penitrem A causes an tremorgenic syndrom consisting of acute tremor followed by chronic ataxia. Other symptoms include severe muscle fasciculations, vomiting, convulsions, tachycardia, and seizures, possibly leading to massive liver necrosis and death. Tremorgenic mycotoxins cause a neurological disease of cattle known as "staggers syndrome", which is characterized by muscle tremors and hyperexcitability. (A2974, L1959, A2989, A2990) |
| Carcinogen Classification | No indication of carcinogenicity to humans (not listed by IARC). |
| Toxicity Data | LD50: 10 mg/kg (Oral, Mouse) (A2992) LD50: 1.1 mg/kg (Intraperitoneal, Mouse) (A2992) |
| 水環境危害等級(WGK) | 3 |
| RTECS 番号 | RY7535000 |
| 輸送番号(UN) | UN 2811 6.1/PG 2 |
| 毒性 | LD50 orl-mus: 10 mg/kg 41KEAL -,108,78 |
| 税関コード | 29349990 |
| 危険文句(R) | 26/27/28 |
| 危険表示 | T+,T |
| 安全措置(S) | 36/37/39-45 |
| 危険等級 | 6.1(a)Acute Tox. 2 Oral |
| 包装等級 | II |
| 貯蔵分類 | 6.1A - Combustible acute toxic Cat. 1 and 2very toxic hazardous materials |
用途
天然物の起源
A series of closely related metabolites of Penicillium crustosum has recently been isolated and the components separated chromatographically. Penitrem A forms colourless crystals from EtOH.
使用
Penitrem A is a tremorgenic mycotoxin isolated from Penicillium species. Penitrem A is a selective blocker of high-conductance Ca2+-activated potassium channels.