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小川型和稻叶型霍乱弧菌脂多糖中5-磷酸-2-酮基脱氧辛酸的存在情况。

Occurrence of 2-keto-deoxyoctonic acid 5-phosphate in lipopolysaccharides of Vibrio cholerae Ogawa and Inaba.

作者信息

Brade H

出版信息

J Bacteriol. 1985 Feb;161(2):795-8. doi: 10.1128/jb.161.2.795-798.1985.

Abstract

A phosphorylated 2-keto-3-deoxyoctonic acid (KDO) was released from the lipopolysaccharides of Vibrio cholerae Ogawa and Inaba after strong acid hydrolysis. The phosphorylated KDO was identified by gas-liquid chromatography and mass spectrometry after reduction and permethylation as KDO-5-phosphate and an isomer of it being phosphorylated at position 7 or 8. After treatment with alkaline phosphatase, KDO was detected by gas-liquid chromatography and mass spectrometry. It was indistinguishable from authentic 2-keto-3-deoxy-D-manno-octonic acid.

摘要

在强酸水解后,磷酸化的2-酮-3-脱氧辛酸(KDO)从霍乱弧菌小川型和稻叶型的脂多糖中释放出来。经还原和全甲基化后,通过气液色谱和质谱鉴定该磷酸化的KDO为5-磷酸-KDO及其在7位或8位磷酸化的异构体。用碱性磷酸酶处理后,通过气液色谱和质谱检测到KDO。它与 authentic 2-酮-3-脱氧-D-甘露辛酮酸无法区分。 (注:这里“authentic”可译为“真实的、正宗的、标准的”等,具体意思需结合上下文确定,暂保留英文未译,因为不确定在此处最合适的中文表述)

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本文引用的文献

1
Separation of the phosphoric esters on the filter paper chromatogram.磷酸酯在滤纸色谱上的分离
Nature. 1949 Dec 31;164(4183):1107-12, illust. doi: 10.1038/1641107a0.
2
Detection of sugars on paper chromatograms.纸色谱上糖的检测
Nature. 1950 Sep 9;166(4219):444-5. doi: 10.1038/166444b0.

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