Results 261 to 270 of about 53,976 (309)

Clostridioides difficile exploits xanthine and uric acid as nutrients by utilizing a selenium-dependent catabolic pathway. [PDF]

Microbiol Spectr
Johnstone MA, Self WT.
europepmc   +1 more source

Prostaglandins Differentially Regulate the Constitutive and Mechanosensitive Release of Soluble Nucleotidases in the Urinary Bladder Mucosa. [PDF]

Int J Mol Sci
Gutierrez Cruz A, Borhani Peikani M, Beaulac TD, Mutafova-Yambolieva VN.   +3 more
europepmc   +1 more source

The biosynthesis of the purines [PDF]

Ergebnisse der Physiologie Biologischen Chemie und Experimentellen Pharmakologie, 1959
Of the many problems which confront the biologist in his understanding of the operations of the cell, the synthesis of biologically important substances is now the most amenable to solution. It has been the domain of the biochemist to probe into the integrated cellular system by dissembling its enzymatic machinery as a means of studying the complex ...
John M. Buchanan, Standish C. Hartman
openaire   +2 more sources

Some of the next articles are maybe not open access.

Related searches:

Analysis of Purine in Purine-Rich Cauliflower

Nucleosides, Nucleotides and Nucleic Acids, 2010
Purine is a general term for purine nucleotides, nucleosides, bases, and nucleic acid. The amount of purine nucleotides, nucleosides, and bases in purine-rich cauliflower was determined with the use of LC-MS and HPLC, and the ratio of these molecules were compared with in raw and in heated condition.
M Aoki, Noriko Yamaoka, Tetsuya Yamamoto, Kazuya Nakagomi, Makoto Yasuda, Ken-ichi Mawatari, Y Kudo, Kiyoko Kaneko, Yasukazu Yamada   +8 more
openaire   +2 more sources

Feedback Control of Purine Biosynthesis by Purine Ribonucleotides [PDF]

Nature, 1959
IN recent years a number of biosynthetic sequences have been shown to be regulated by feedback mechanisms, which have been of two general types, the first involving regulation of the activity of an enzyme by an inhibitory effect of an end-product1,2, the second involving regulation of the rate of synthesis of an enzyme by negative-induction, or ...
James B. Wyngaarden, Doris M. Ashton
openaire   +2 more sources

3 Purine, Purine Nucleoside, and Purine Nucleotide Aminohydrolases

1971
Publisher Summary This chapter discusses the chemical significance of adenosine aminohydrolase, 5′-adenylic acid aminohydrolase, adenine nucleoside, nucleotide aminohydrolase, guanine aminohydrolase, and guanosine aminohydrolase. The partially purified adenine aminohydrolase from Azotobacter vinelandii catalyzes the anaerobic conversion of adenine ...
C.H. Suelter, C.L. Zielke
openaire   +2 more sources

Protonation-deprotonation of purines and purine nucleosides

Journal of Molecular Structure: THEOCHEM, 1989
Abstract The protonation of purines and purine nucleosides at N7 and the HC8 acidity of the cations have been explored by semi-empirical and ab initio MO ...
Donald W. Boerth, Pradip K. Bhowmik
openaire   +2 more sources

Purine metabolism

Biochemical Society Transactions, 1981
Abstract The inherited disorders of purine metabolism associated with renal disease are listed in Table 24.1. They are the sole cause of only a small proportion of all renal disease and are therefore best considered as part of the overall problem of purine, especially uric acid metabolism-related renal disease.
openaire   +2 more sources

PURINE PHOTOPRODUCTS*

Photochemistry and Photobiology, 1988
Abstract— DNA purine modifications by ultraviolet irradiation have not been as extensively studied as those of pyrimidines. However, a number of such reactions have been identified. These include photochemical addition of amino acids, photoalkylation by alcohols, amines and other compounds, photochemical activation of procarcinogens to mutagenic ...
N J, Duker, P E, Gallagher
openaire   +2 more sources