L-681,217
目录号 : GC44020
An antibiotic
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >95.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
L-681,217 is an antibiotic originally isolated from S. cattleya. It is active against Gram positive and Gram negative bacteria when used at a concentration of 255 µg/ml. L-681,217 inhibits bacterial protein synthesis at the elongation stage, completely inhibiting poly(U)-dependent poly(Phe) synthesis (EC50 = 0.4 µM) and increasing elongation factor Tu (EF-Tu)-associated GTPase activity in E. coli (EC50 = 6 µM). It does not inhibit poly(U)-dependent poly(Phe) synthesis in S. aureus (EC50 = >1,000 µM).
| Cas No. | SDF | ||
| Canonical SMILES | C[C@H]([C@H](OC)/C(C)=C/C=C/CNC([C@@H](CC)[C@@]1(O)O[C@](/C=C\C=C/C)([H])C(C)(O)[C@@H](O)C1)=O)[C@]2([H])O[C@](/C=C/C=C/C=C/C(O)=O)([H])[C@@H](O)C2 | ||
| 分子式 | C36H53NO10 | 分子量 | 659.8 |
| 溶解度 | DMF: soluble,DMSO: soluble,Ethanol: soluble,Methanol: soluble | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.5156 mL | 7.5781 mL | 15.1561 mL |
| 5 mM | 0.3031 mL | 1.5156 mL | 3.0312 mL |
| 10 mM | 0.1516 mL | 0.7578 mL | 1.5156 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
L-681,217, a new and novel member of the efrotomycin family of antibiotics
J Antibiot (Tokyo) 1986 Oct;39(10):1361-7.PMID:3781906DOI:10.7164/antibiotics.39.1361.
L-681,217 is a new broad spectrum antibiotic isolated from fermentation broth. The compound is a structurally unique member of the efrotomycin family of growth permittant antibiotics.
Effects of elfamycins on elongation factor Tu from Escherichia coli and Staphylococcus aureus
Antimicrob Agents Chemother 1989 Mar;33(3):322-5.PMID:2499247DOI:10.1128/AAC.33.3.322.
Six kirromycin analogs (elfamycins) were compared on the basis of their inhibition of Escherichia coli poly(U)-directed poly(Phe) synthesis and stimulation of elongation factor Tu (EF-Tu)-associated GTPase activity. The elfamycins tested were kirromycin, aurodox, efrotomycin, phenelfamycin A, unphenelfamycin, and L-681,217. The last three lack the pyridone ring present in the other elfamycins. All the elfamycins inhibited poly(U)-dependent poly(Phe) synthesis and stimulated EF-Tu-associated GTPase activity, suggesting that the pyridone ring is not essential for activity. The six elfamycins were also examined in a poly(U)-directed, poly(Phe)-synthesizing system derived from Staphylococcus aureus and had 50% inhibitory concentrations of greater than or equal to 1 mM. When S. aureus ribosomes and E. coli elongation factors were combined in a hybrid poly(Phe)-synthesizing system, aurodox produced essentially complete inhibition of poly(Phe) synthesis with a 50% inhibitory concentration of 0.13 microM. This suggests that the observed high MICs of kirromycin and its congeners in S. aureus reflect a kirromycin-resistant EF-Tu rather than permeability constraints.