Premium
Distribution of Erythrocyte Nucleotides in Pyrimidine 5′‐Nucleotidase Deficiency
Author(s) -
Torrance J. D.,
Whittaker D.
Publication year - 1979
Publication title -
british journal of haematology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.907
H-Index - 186
eISSN - 1365-2141
pISSN - 0007-1048
DOI - 10.1111/j.1365-2141.1979.tb03769.x
Subject(s) - nucleotide , cytidine , pyrimidine , ammonium formate , biochemistry , nucleotidase , chemistry , uridine , 5' nucleotidase , adenine nucleotide , biology , adenosine , enzyme , rna , formic acid , gene
S ummary . In pyrimidine 5′‐nucleotidase deficiency, erythrocytes contain elevated levels of pyrimidine nucleotides. The composition of this nucleotide pool was examined by ion exchange chromatography on Dowex formate columns using a linear ammonium formate elution gradient. In contradistinction to normal erythrocytes, adenine nucleotides accounted for only 32% of the nucleotide pool. The remainder consisted of 50% cytidine and 16% uridine nucleotides. The remaining 2% was not identified. The most abundant compound appeared to be UDP glucose whilst high levels of CTP, CMP and an unidentified cytidine compound less polar than CMP accounted for most of the cytidine nucleotide pool. The possibility that the abnormal nucleotides were due to an elevated reticulocyte count was excluded and it was also shown that erythrocytes from subjects heterozygous for pyrimidine 5′‐nucleotidase deficiency did not have detectable levels of the abnormal nucleotides.