Results 271 to 280 of about 872,410 (312)
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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 ...
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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 ...
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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
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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
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Biosynthesis of anthracyclinones
Journal of Basic Microbiology, 1988AbstractRecent biosynthetic studies confirmed that anthraquinones are involved as intermediates in the pathway to anthracyclines. The present knowledge in this field has been reviewed. Furthermore, a new generalized order of biosynthetic intermediates from the hypothetical polyketide to aklavinone and related anthracyclinones has been proposed ...
K, Eckardt, C, Wagner
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The biosynthesis of prostaglandins
Biochimica et Biophysica Acta (BBA) - General Subjects, 1964Prostaglandins were biosynthesized to test the hypothesis that essential fatty acids could act as precursors of prostaglandins (PGS). PGE2 the PGs with the greatest biological activity were addressed first. Because of the position of the double bonds and the fact that a bended conformation of arachidonic acid suggests the possibility of trans-annular
, VAN DORPD +3 more
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Nature, 1960
IT was previously suggested1,2 that serine ethanolamine phosphodiester (I) was the biological precursor of lombricine (II), a substance first isolated from earthworms by Thoai and Robin3. This suggestion was strengthened by the discovery of serine ethanolamine phosphodiester in earthworms2,4 and by the finding that the serine moiety of both lombricine5
R J, ROSSITER +3 more
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IT was previously suggested1,2 that serine ethanolamine phosphodiester (I) was the biological precursor of lombricine (II), a substance first isolated from earthworms by Thoai and Robin3. This suggestion was strengthened by the discovery of serine ethanolamine phosphodiester in earthworms2,4 and by the finding that the serine moiety of both lombricine5
R J, ROSSITER +3 more
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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
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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
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Tetrahedron, 1981
Abstract The 13C-NMR spectra of pseurotin A (1), a secondary metabolite of Pseudeurotium ovalis Stolk, and of some derivatives were measured and interpreted. Incorporation experiments with [1,2-13C2]-propionate, [2-13C]-malonate, [1-13C]- and [2,3-13C2]-phenylalanine and [13C−CH3]- L -methionine showed that the building blocks of pseurotin A (1) are ...
P. Mohr, Ch. Tamm
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Abstract The 13C-NMR spectra of pseurotin A (1), a secondary metabolite of Pseudeurotium ovalis Stolk, and of some derivatives were measured and interpreted. Incorporation experiments with [1,2-13C2]-propionate, [2-13C]-malonate, [1-13C]- and [2,3-13C2]-phenylalanine and [13C−CH3]- L -methionine showed that the building blocks of pseurotin A (1) are ...
P. Mohr, Ch. Tamm
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2007
Volume 2 - Section II - Chapitre 2.22 Collection: Reference Module in Chemistry, Molecular Sciences and Chemical Engineering ; International ...
Höfte, Herman +2 more
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Volume 2 - Section II - Chapitre 2.22 Collection: Reference Module in Chemistry, Molecular Sciences and Chemical Engineering ; International ...
Höfte, Herman +2 more
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The biosynthesis of aldosterone
The Journal of Steroid Biochemistry and Molecular Biology, 1991The cellular mechanisms for aldosterone biosynthesis are incompletely understood. Although the enzymes involved are now well characterized, the dynamics of aldosterone secretion in a variety of rat adrenal preparations are not consistent with the concept that freshly synthesized corticosterone is an important intermediate.
G P, Vinson +4 more
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Journal of Cellular and Comparative Physiology, 1951
GAR transformylase, which is responsible for the incorporation of formate carbon into what becomes position 8 of the purine ring, has been completely separated from 5-amino-4-imidazolecarboxamide ribotide transformylase (3). The latter enzyme is responsible for the incorporation of formate carbon into position 2 of the purine ring.
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GAR transformylase, which is responsible for the incorporation of formate carbon into what becomes position 8 of the purine ring, has been completely separated from 5-amino-4-imidazolecarboxamide ribotide transformylase (3). The latter enzyme is responsible for the incorporation of formate carbon into position 2 of the purine ring.
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