Results 311 to 320 of about 1,266,322 (341)
Some of the next articles are maybe not open access.
ChemBioChem, 2014
No longer in-F-able: fluorine building blocks can be used in polyketide biosynthesis. This represents a more flexible approach to organofluorines than the traditional use of fluorinated starter units in multistep organic syntheses, and will hopefully increase the number of compounds available for drug development.
Klopries, Stephan +3 more
openaire +3 more sources
No longer in-F-able: fluorine building blocks can be used in polyketide biosynthesis. This represents a more flexible approach to organofluorines than the traditional use of fluorinated starter units in multistep organic syntheses, and will hopefully increase the number of compounds available for drug development.
Klopries, Stephan +3 more
openaire +3 more sources
Biosynthesis of Furanochromones
Canadian Journal of Biochemistry, 1971Radioactive khellin, visnagin, and visamminol were recovered from Ammi visnaga plants fed [1-14C]-acetate. A trapping experiment with 5,7-dihydroxy-2-methylchromone indicated that this compound was formed from acetate in the plant. It was then prepared labelled with 14C and 3H and administered to shoots, demonstrating its conversion to visamminol and ...
Harrison, P. G. +2 more
openaire +2 more sources
Obstetrical & Gynecological Survey, 1962
The formation of estrogens and phenolic material from a large number of do Cis, C19 and C2i steroids and related structures has been investigated, employing a human placental microsomal preparation supplemented with TPNH and oxygen. The data from the incubation of 2 C 14-labeled androgens are included.
C, GUAL +4 more
openaire +2 more sources
The formation of estrogens and phenolic material from a large number of do Cis, C19 and C2i steroids and related structures has been investigated, employing a human placental microsomal preparation supplemented with TPNH and oxygen. The data from the incubation of 2 C 14-labeled androgens are included.
C, GUAL +4 more
openaire +2 more sources
Natural Product Reports, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Michael E, Webb +2 more
openaire +2 more sources
AbstractFor Abstract see ChemInform Abstract in Full Text.
Michael E, Webb +2 more
openaire +2 more sources
Nature, 1964
IT is the purpose of the present communication to describe some further results with carbon-14 precursors of ethylene, and to reconcile the pattern which emerges in these investigations using McIntosh apple tissue sections with that of the fungal system, Penicillium digitatum.
S P, BURG, E A, BURG
openaire +2 more sources
IT is the purpose of the present communication to describe some further results with carbon-14 precursors of ethylene, and to reconcile the pattern which emerges in these investigations using McIntosh apple tissue sections with that of the fungal system, Penicillium digitatum.
S P, BURG, E A, BURG
openaire +2 more sources
Angewandte Chemie International Edition in English, 1966
AbstractInformation has recently been obtained, mainly with the aid of radioactive compounds, about the biosynthesis of various cyclitols. It was found that the most widely occurring cyclitol, meso‐inositol, is biosynthesized by a pathway probably common to all organisms, in which the cyclohexane ring is formed by ring closure between the two terminal ...
H, Kindl +2 more
openaire +2 more sources
AbstractInformation has recently been obtained, mainly with the aid of radioactive compounds, about the biosynthesis of various cyclitols. It was found that the most widely occurring cyclitol, meso‐inositol, is biosynthesized by a pathway probably common to all organisms, in which the cyclohexane ring is formed by ring closure between the two terminal ...
H, Kindl +2 more
openaire +2 more sources
Biochemistry, 1990
This paper establishes the pathway for the biosynthesis of methanopterin in Methanosarcina thermophila to proceed by the following series of reactions. First, 5-phospho-alpha-D-ribosyl diphosphate (PRPP) and 4-aminobenzoic acid condense together to produce 4-(beta-D-ribofuranosyl)aminobenzene 5'-phosphate, which then reacts with 6-hydroxymethyl-7,8 ...
openaire +3 more sources
This paper establishes the pathway for the biosynthesis of methanopterin in Methanosarcina thermophila to proceed by the following series of reactions. First, 5-phospho-alpha-D-ribosyl diphosphate (PRPP) and 4-aminobenzoic acid condense together to produce 4-(beta-D-ribofuranosyl)aminobenzene 5'-phosphate, which then reacts with 6-hydroxymethyl-7,8 ...
openaire +3 more sources
The biosynthesis of methionine
Molecular and Cellular Biochemistry, 1973The methylation of the thiol group of homocysteine leading to methionine is a biochemical reaction of particular interest since it represents a crossroad of the action of two vitamins, folic acid and cobalamin, both in bacteria and in animals.
H, Rüdiger, L, Jaenicke
openaire +2 more sources
Life Sciences, 1963
Abstract The radioactive carbon atom of sodium acetate - 2-C 14 injected into the body cavity of honey bees actively synthesizing wax was incorporated into the free acids and esters of the wax within a few hours. The specific activity of the wax was 5000 c.p.m.
openaire +2 more sources
Abstract The radioactive carbon atom of sodium acetate - 2-C 14 injected into the body cavity of honey bees actively synthesizing wax was incorporated into the free acids and esters of the wax within a few hours. The specific activity of the wax was 5000 c.p.m.
openaire +2 more sources
2011
Heparin and heparan sulfate share the same polysaccharide backbone structure but differ in sulfation degree and expression pattern. Whereas heparan sulfate is found in virtually all cells of the human body, heparin expression is restricted to mast cells, where it has a function in storage of granular components such as histamine and mast cell specific ...
Pernilla, Carlsson, Lena, Kjellén
openaire +2 more sources
Heparin and heparan sulfate share the same polysaccharide backbone structure but differ in sulfation degree and expression pattern. Whereas heparan sulfate is found in virtually all cells of the human body, heparin expression is restricted to mast cells, where it has a function in storage of granular components such as histamine and mast cell specific ...
Pernilla, Carlsson, Lena, Kjellén
openaire +2 more sources