微生物类固醇生物转化:由Priestia aryabhattai进行的Regio和立体选择性17β降解
Yogeswari Sudhakar1, Reddy Krishna Manasa1, Dhanapal Priyadarshini1
1Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India.
Steroids
|March 22, 2025
概括
细菌Priestia aryabhattai通过17β-基固醇脱酶活性有效地将androst-4-ene-3,17-dione转化为. 这种微生物减少为类固醇合成提供了高度选择性和高产量的生物催化工艺.
科学领域:
- 生物技术是生物技术.
- 微生物学 微生物学
- 有机化学 有机化学
背景情况:
- 将17-oxosteroids降解为17β-hydroxysteroids对于合成类固醇药物至关重要.
- 微生物生物催化剂为传统的化学合成方法提供了一个可持续的替代方案.
研究的目的:
- 调查Priestia aryabhattai (IICT-BC-1279) 对于微生物减少安德罗斯特-4--3,17- (AD) 的潜力.
- 为了优化17β-基类固醇脱酶 (17β-HSD) 活动的条件.
- 评估该菌株转化其他类固醇基质的能力,例如androsta-1,4-diene-3,17-dione (ADD).
主要方法:
- 对Priestia aryabhattai进行17β-HSD活性查.
- 优化反应参数,包括pH值,温度,诱导剂度,辅溶剂和基质负荷.
- 使用分析技术分析产品产量,纯度和二聚体过量.
主要成果:
- 普里斯蒂亚·阿里巴塔伊 (Priestia aryabhattai) 显示出高17β-HSD活性,仅将AD转化为 (TS).
- 在pH 7.0和25°C下实现了最佳转化,诱导剂为0.01g/L每日,Tween 80为1%,辅助溶剂为乙醇.
- 在优化条件下,从0.5g/L AD. 48小时内获得了>95%的产量和>99%的TS二聚体过剩.
- 该过程产生了TS作为唯一的产品,简化了净化.
结论:
- 普里斯蒂亚aryabhattai是一个强大的生物催化剂,用于AD的立体选择性降低到TS.
- 微生物降低提供了一种高效和清洁的生产方法.
- 该菌株对其他类固醇转变的潜力需要进一步调查.
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