酒精脱酶系统作为Desulfofundulus kuznetsovii菌株TPOSR中甲醇氧化的唯一途径
Lukas Friedeheim1, Sjef Boeren2, Irene Sánchez-Andrea1
1Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands.
Antonie van Leeuwenhoek
|March 1, 2024
概括
新分离的Desulfofundulus kuznetsovii (菌株TPOSR) 完全使用一种甲醇代谢途径,与类型菌株不同. 这揭示了减少硫酸盐的细菌的代谢多样性.
科学领域:
- 微生物学 微生物学
- 细菌学 细菌学是一门学科.
- 生物化学 生物化学
背景情况:
- 德苏尔福芬杜鲁斯 (Desulfofundulus kuznetsovii) 是一种热性,子形成,硫酸盐减少的细菌.
- 这项研究将新分离的菌株 (TPOSR) 与类型菌株 (17T) 进行比较.
研究的目的:
- 为了描述新的D. kuznetsovii菌株TPOSR.的新陈代谢.
- 为了比较其代谢途径,特别是甲醇利用,与菌株17T.
主要方法:
- 基因组比较以确定基因差异.
- 代谢增长实验与各种酒精和在限制下.
- 对甲醇利用途径的分析.
主要成果:
- 这两种菌株都利用不同的醇来减少硫酸盐.
- 菌株TPOSR缺乏依赖甲基转移酶的关键基因,仅依赖酒精脱酶进行甲醇代谢.
- 菌株17T既有依赖的途径,也有独立的甲醇途径,但对饥饿更为敏感.
结论:
- D. kuznetsovii 在甲醇利用途径中表现出显著的代谢多样性.
- 特定基因的存在或缺失决定了菌株依赖依赖或独立路线的情况.
- 的可用性会根据其代谢机制对D. kuznetsovii菌株的生长产生不同的影响.
相关概念视频
Oxidation of Alcohols
13.1K
In this lesson, the oxidation of alcohols is discussed in depth. The various reagents used for oxidation of primary and secondary alcohols are detailed, and their mechanism of action is provided.
The process of oxidation in a chemical reaction is observed in any of the three forms:
The process of oxidation in a chemical reaction is observed in any of the three forms:
13.1K
Preparation of Alcohols via Addition Reactions
6.2K
Overview
The acid-catalyzed addition of water to the double bond of alkenes is a large-scale industrial method used to synthesize low-molecular-weight alcohols. An acidic atmosphere is required to allow the hydrogen in the water molecule to act as an electrophile and attack the double bond in an alkene. The addition of a proton to the double bond creates a carbocation intermediate. The proton preferentially bonds to the less substituted end of the double bond to create a more stable carbocation...
The acid-catalyzed addition of water to the double bond of alkenes is a large-scale industrial method used to synthesize low-molecular-weight alcohols. An acidic atmosphere is required to allow the hydrogen in the water molecule to act as an electrophile and attack the double bond in an alkene. The addition of a proton to the double bond creates a carbocation intermediate. The proton preferentially bonds to the less substituted end of the double bond to create a more stable carbocation...
6.2K
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
10.2K
Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
10.2K
Fates of Pyruvate
8.4K
Pyruvate is the end product of glycolysis, where glucose is oxidized to pyruvate, simultaneously reducing NAD+ to NADH. Two molecules of ATP are also produced by substrate-level phosphorylation.
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
8.4K
Hydroboration-Oxidation of Alkenes
8.2K
In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
8.2K
Alcohols from Carbonyl Compounds: Reduction
10.4K
Reduction is a simple strategy to convert a carbonyl group to a hydroxyl group. The three major pathways to reduce carbonyls to alcohols are catalytic hydrogenation, hydride reduction, and borane reduction.
Catalytic hydrogenation is similar to the reduction of an alkene or alkyne by adding H2 across the pi bond in the presence of transition metal catalysts like Raney Ni, Pd–C, Pt, or Ru. Aldehydes and ketones can be reduced by this method, often under mild to moderate heat (25–100°C) and...
Catalytic hydrogenation is similar to the reduction of an alkene or alkyne by adding H2 across the pi bond in the presence of transition metal catalysts like Raney Ni, Pd–C, Pt, or Ru. Aldehydes and ketones can be reduced by this method, often under mild to moderate heat (25–100°C) and...
10.4K


