Accession Number:

AD0618159

Title:

A DIETHER ANALOG OF PHOSPHATIDYL GLYCEROPHOSPHATE IN HALOBACTERIUM CUTIRUBRUM,

Descriptive Note:

Corporate Author:

NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF BIOSCIENCES

Personal Author(s):

Report Date:

1964-06-26

Pagination or Media Count:

18.0

Abstract:

The major phosphatide in the extremely halophilic bacterium, Halobacterium cutirubrum, was isolated by a combination of solvent fractionation, precipitation through the barium salt, and final purification as the sodium salt. Analytical and degradative data showed the phosphatide to be a phosphatidyl glycerophosphate with two long-chain ether groups instead of fatty acid ester groups. Both long-chain groups were found to be identical and were shown by comparison of infrared, nuclear magnetic resonance, and mass spectra with those of dihydrophytyl derivatives to have the structure 3,7,11,15-tetramethylhexadecyl. The two long-chain groups are joined by ether linkages to the alpha, beta-positions of L-glycerol. Possible biochemical and physiological functions of this unusual phosphatide in the halophile cell are discussed. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE