C15, C20, and C25 isoprenoid homologues in glycerol diether phospholipids of methanogenic archaebacteria.
نویسندگان
چکیده
منابع مشابه
Light sensitivity of methanogenic archaebacteria.
Representatives of four families of methanogenic archaebacteria (archaea), Methanobacterium thermoautotrophicum delta H, Methanobacterium thermoautotrophicum Marburg, Methanosarcina acetivorans, Methanococcus voltae, and Methanomicrobium mobile, were found to be light sensitive. The facultative anaerobic eubacteria Escherichia coli and Salmonella typhimurium, however, were tolerant of light whe...
متن کاملStructural elucidation of a unique macrocyclic membrane lipid from a new, extremely thermophilic, deep-sea hydrothermal vent archaebacterium, Methanococcus jannaschii.
The membrane lipid of a new deep-sea hydrothermal vent methanogen, Methanococcus jannaschii, was isolated, purified, and structurally characterized. The total lipid extract, amounting to 32.2 micrograms/mg, dry cell weight, was fractionated on silica gel into a neutral lipid and polar lipid fraction. The neutral lipid fraction consisted of a series of isoprenoid hydrocarbons and free (nonphosph...
متن کاملTetrafibricin: synthesis of the C1-C13, C15-C25, and C27-C40 fragments.
[structure: see text] A sequence of chemoselective cross-metathesis reactions and enantioselective allyltitanations of aldehydes has been used to prepare the C1-C13, C15-C26, and C27-C40 fragments of tetrafibricin.
متن کاملLong-chain glycerol diether and polyol dialkyl glycerol triether lipids of Sulfolobus acidocaldarius.
Cells of Sulfolobus acidocaldarius contain about 2.5% total lipid on a dry-weight basis. Total lipid was found to contain 10.5% neutral lipid, 67.6% glycolipid, and 21.7% polar lipid. The lipids contained C(40)H(80) isopranol glycerol diethers. Almost no fatty acids were present. The glycolipids were composed of about equal amounts of the glycerol diether analogue of glucosyl galactosyl diglyce...
متن کاملTransmembrane movement of diether phospholipids in human erythrocytes and human fibroblasts.
We have synthesized spin-labeled (SL) and fluorescently labeled diacyl, 1-alkyl-2-acyl-, and di-alkyl glycerophospholipids. The sn-2 chain was a short chain with either a nitroxide group or a 7-nitro-2, 1,3-benzoxadiazol-4-yl (NBD). After incorporation in the exoplasmic leaflet of human erythrocytes, we found that SL-phosphatidylcholine (PC) redistributed very slowly across the plasma membrane,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Lipid Research
سال: 1985
ISSN: 0022-2275
DOI: 10.1016/s0022-2275(20)34285-1