D-Allothreonine
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D-Allothreonine is a non-proteinogenic amino acid that serves as a substrate for Pyridoxal phosphate (HY-B1744)-dependent D-threonine aldolase, being cleaved into Glycine (HY-Y0966) and acetaldehyde, and acts as a constituent of bioactive peptidyl natural products such as callipeltins, conferring protease resistance. D-Allothreonine is used in natural product synthesis and metabolic research.
商品は「研究用試薬」です。人や動物の医療用・臨床診断用・食品用の製品ではありません。
研究用途以外に使用した場合、当社は一切の責任を負いかねます。
- 純度 : 98.0%
- CAS 番号: 24830-94-2
- 分子式: C4H9NO3
- 分子量:119.12
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保管条件:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
Endogenous Metabolite アイソフォーム固有の製品をすべて表示
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生物活性
製品説明
IC50 & Target
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Microbial Metabolite |
Cellular Effect
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| L1210 | IC50 |
> 100 μg/mL
Compound: F2-Thr (2R,3R)
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Tested for the effect of stereochemistry on the growth of L1210 mouse leukemia cell line in vitro
Tested for the effect of stereochemistry on the growth of L1210 mouse leukemia cell line in vitro
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10.1016/S0960-894X(01)81041-6 |
体外実験
D‑allothreonine, together with D‑threonine, can be reversibly synthesized from glycine and acetaldehyde by D‑threonine aldolase (100‑350 mM; 2 h) derived from Arthrobacter sp. DK‑38[1].
D‑allothreonine is cleaved by D‑threonine aldolase (6‑25 mM; 30 min‑2 h) from Arthrobacter sp. DK‑38 at an enzyme concentration of 0.024 U/mL, whereas L‑threonine and L‑allothreonine are not hydrolyzed[1].
D-allothreonine (2 M; 2 h) is present in the O-polysaccharide of Escherichia coli O110 and is amide-linked to the carboxyl group of D-galacturonic acid[2].
D-Allothreonine (1.5% acetic acid containing 2% SDS; 15 min) is a constituent of the O-specific polysaccharide of Hafnia alvei strain PCM 1206 lipopolysaccharide, amide-linked to the D-galacturonic acid residue[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
体内実験
D-Allothreonine (2%; p.o.; ad libitum; 11 d) is not growth depressing in healthy chicks, as a 2% dietary supplement does not affect weight gain, voluntary feed intake, or feed efficiency[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:New Hampshire males × Columbian females chicks (male; 10-21 d posthatching; average initial body weight 104 g)[3]
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Dosage:0.18% or 0.36%
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Administration:p.o.; ad libitum; 11 d
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Result:Added 0.18% D-allo-Thr resulted in weight gain of 54 g, feed intake of 250 g, and gain:feed of 220 g:kg.
Added 0.36% D-allo-Thr resulted in weight gain of 61 g, feed intake of 261 g, and gain:feed of 235 g:kg.
Both doses were without effect on chick performance, with values not significantly different from the unsupplemented basal group.
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Animal Model:New Hampshire males × Columbian females chicks (male; 8-19 d posthatching; average initial body weight 95 g)[3]
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Dosage:2.0%
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Administration:p.o.; ad libitum; 11 d
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Result:Added 2.0% D-allo-Thr resulted in weight gain of 236 g, feed intake of 353 g, and gain:feed of 668 g:kg.
Values were not significantly different from the basal diet group (weight gain 232 g, feed intake 341 g, gain:feed 680 g:kg).
D-allo-Thr is not growth depressing at a supplemental level of 2% of the diet.
化学情報
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CAS 番号 24830-94-2
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性状 Solid
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分子量 119.12
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分子式 C4H9NO3
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Color White to off-white
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SMILES
N[C@H]([C@H](O)C)C(O)=O
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Structure Classification
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Initial Source
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輸送条件
Room temperature in continental US; may vary elsewhere.
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保管条件
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
溶剤 & 溶解度
体外:
H2O : 25 mg/mL (209.87 mM; ultrasonic and warming and heat to 60°C)
DMSO : < 1 mg/mL (insoluble or slightly soluble)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
濃度 (開始) × 体積 (開始) = 濃度 (終了) × 体積 (終了)
体内:
For the following dissolution methods, please prepare the working solution directly:
It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: PBS
Solubility: 8.33 mg/mL (69.93 mM); Clear solution; Need ultrasonic and warming and heat to 60°C
純度とドキュメンテーション
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データシート (279 KB)
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SDS (393 KB)
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- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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取扱説明書 (2659 KB)
参考文献
[1]. Kataoka M, et al. Isolation and characterization of D-threonine aldolase, a pyridoxal-5'-phosphate-dependent enzyme from Arthrobacter sp. DK-38. European journal of biochemistry. 1997 Sep 01;248(2):385-93. [Content Brief]
[4]. Petersson C, et al. Structural studies of the O-specific polysaccharide of Hafnia alvei strain PCM 1206 lipopolysaccharide containing D-allothreonine. European journal of biochemistry. 1997 Mar 01;244(2):580-6. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| H2O | 1 mM | 8.3949 mL | 41.9745 mL | 83.9490 mL | 209.8724 mL |
| 5 mM | 1.6790 mL | 8.3949 mL | 16.7898 mL | 41.9745 mL | |
| 10 mM | 0.8395 mL | 4.1974 mL | 8.3949 mL | 20.9872 mL | |
| 15 mM | 0.5597 mL | 2.7983 mL | 5.5966 mL | 13.9915 mL | |
| 20 mM | 0.4197 mL | 2.0987 mL | 4.1974 mL | 10.4936 mL | |
| 25 mM | 0.3358 mL | 1.6790 mL | 3.3580 mL | 8.3949 mL | |
| 30 mM | 0.2798 mL | 1.3991 mL | 2.7983 mL | 6.9957 mL | |
| 40 mM | 0.2099 mL | 1.0494 mL | 2.0987 mL | 5.2468 mL | |
| 50 mM | 0.1679 mL | 0.8395 mL | 1.6790 mL | 4.1974 mL | |
| 60 mM | 0.1399 mL | 0.6996 mL | 1.3991 mL | 3.4979 mL | |
| 80 mM | 0.1049 mL | 0.5247 mL | 1.0494 mL | 2.6234 mL | |
| 100 mM | 0.0839 mL | 0.4197 mL | 0.8395 mL | 2.0987 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.