Unsaponifiable constituents of liver; ubiquinone and substance SC in various species

The intracellular distribution of dolichol in pig liver

“…The recovery of ubiquinone was 97-7 % and that of dolichol was apparently 109-2 %, compared with control tissue. The total ubiquinone content of pig liver, 34-2,ug./g., is in good agreement with the figure reported by Cunningham & Morton (1958).…”

Studies on vitamin E. 4. The simultaneous determinations of tocopherols, ubiquinones and ubichromenols (substance SC) in animal tissues: a reconsideration of the Keilin–Hartree heart preparation

“…x 1-5 cm. column of alumina [Peter Spence and Sons Ltd., type 0; see Cunningham & Morton (1959)]. The ubiquinone was eluted with 10% (v/v) of ethanol in ether.…”

“…shown that a reducing substance isolated from human kidney and from several other aniinal tissues (Lowe, Morton & Harrison, 1953;Cunningham & Morton, 1959) has the structure (II). (III) This substance, previously designated by Morton and co-workers as substance SC, and now called by them ubichromenol, is obviously related to RCubiquinone 50 and may indeed be the 3:4-dehydro derivative of the latter.…”

Ubiquinone, plastoquinone and related substances

“…Lowe et al (1953) isolated SC from the unsaponifiable lipid in the liver of vitamin A-deficient rats. Cunningham & Morton (1959) found SC in traces in the livers of several species. found SC in the OH 0 II U bichromenol kidneys of several species and in fowl liver and intestine.…”

“…Lowe et al (1953) isolated SC from the unsaponifiable lipid in the liver of vitamin A-deficient rats. Cunningham & Morton (1959) found SC in 'normal' human kidney. T h e details of the characterization have recently been reported elsewhere (Morton, 1961).…”