Phospholipid deacylating activities in murine leprosy bacilli.

Phospholipid deacylating activities in murine leprosy bacilli. Research Abstract Details 

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Phospholipid deacylating activities in murine leprosy bacilli. Abstract Text:

Y Kashiwabara,H Nakagawa,G Matsuki,

1) The particulate fraction of cultivated murine leprosy bacilli (Mycobacterium lepraemurium, rough colonies of the Hawaiian-Ogawa strain) contained phospholipid deacylating activities with acidic pH optima. It hydrolyzed phosphatidylcholine and phosphatidylethanolamine at similar rates, and phosphatidylinositol oligomannosides more slowly. It also hydrolyzed 1-acyl- and 2-acyl-GPCs (sn-glycerol 3-phosphocholine) more rapidly than phosphatidylcholine. 2) Ca2+ did not stimulate either diacyl- or monoacyl-hydrolase activity. Triton X-100 and Emulgen 913 had little influence on the hydrolysis of phosphatidylcholine, but at rather high concentrations inhibited the hydrolyses of 1-acyl- and 2-acyl-GPCs. Iron ions strongly inhibited the hydrolysis of phosphatidylcholine, but caused little or no inhibition of the deacylations of 1-acyl- and 2-acyl-GPCs. 3) With 1-[stearoyl-14C]phosphatidylcholine and 2-[oleoyl-14C]phosphatidylcholine as substrates, both labeled fatty acid and lysophosphatidylcholine were produced. Labeled fatty acid appeared more rapidly from 2-[oleoyl-14C]phosphatidylcholine than labeled lysophosphatidylcholine, while labeled lysophosphatidylcholine was produced more than labeled fatty acid from 1-[stearoyl-14C]phosphatidylcholine in the early stage of incubation.

Phospholipid deacylating activities in murine leprosy bacilli. Publishing Authors By Initials

Y Kashiwabara,H Nakagawa,G Matsuki,

For similar lipids: membrane lipids: phospholipids research abstracts see: lipids: membrane lipids: phospholipids research

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Phospholipid deacylating activities in murine leprosy bacilli. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of biochemistry

VOLUME: 88

Page Numbers: 1861-8

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: Dec

YEAR: 1980

Phospholipid deacylating activities in murine leprosy bacilli. Information

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LANGUAGE: eng

NlmUniqueID: 376600

Phospholipid deacylating activities in murine leprosy bacilli. Keywords Mesh Terms:

KEYWORDS: Phospholipids

MESH TERMS: metabolism

Chemical & Substance for Abstract: Phospholipid deacylating activities in murine leprosy bacilli. Information

Substance Name: Hydrolases

Registry Number: EC 3.-

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Country: JAPAN

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MEDLINETA: J Biochem

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