EurekaMag.com logo
+ Site Statistics
References:
53,869,633
Abstracts:
29,686,251
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Erythrocytic nucleoside triphosphates in marine fish



Erythrocytic nucleoside triphosphates in marine fish



Comparative Biochemistry & Physiology A 102(2): 323-331



Whole blood purine nucleotides were determined in 19 species of selachians and 27 species of marine teleosts. Concomitant ATP and GTP were revealed inside the erythrocytes of almost all species studied. ATP seems to be the main potential modulator of oxygen affinity in rays, sharks and teleosts, and GTP was not detected in only two teleost species. The mean erythrocytic NTP concentration and the ratio between NTP and intraerythrocytic Hb concentrations in rays were the lowest (2.3 mM and 0.6 respectively), increasing in sharks (3.8 mM and 1.0), and further in teleosts (5.9 mM and 2.1). The intraerythrocytic phosphate contents probably reflect different adaptative strategies associated with the fish habits and habitats, and with the Root effect expression.

(PDF emailed within 0-6 h: $19.90)

Accession: 007311565

Download citation: RISBibTeXText

PMID: 1354581

DOI: 10.1016/0300-9629(92)90142-D



Related references

Erythrocytic nucleoside triphosphates in marine species. Comparative Biochemistry and Physiology A: 1022: 323-331, 1992

Differential interactions of G-proteins and adenylyl cyclase with nucleoside 5 '-triphosphates, nucleoside 5 '-triphosphates and nucleoside 5 '-triphosphates. Biochemical Pharmacology 71(1-2): 89-97, 2005

Differential interactions of G-proteins and adenylyl cyclase with nucleoside 5'-triphosphates, nucleoside 5'-[gamma-thio]triphosphates and nucleoside 5'-[beta,gamma-imido]triphosphates. Biochemical Pharmacology 71(1-2): 89-97, 2005

A comparison of nucleoside (beta-S)triphosphates and nucleoside (gamma-S)triphosphates as suitable substrates for measuring transcription initiation in preparations of cell nuclei. Nucleic Acids Research 10(24): 8311-8322, 1982

Effects of erythrocytic nucleoside triphosphates on oxygen equilibria of composite and fractionated hemoglobins from the facultative air-breathing Amazonian catfish, Hypostomus and Pterygoplichthys. Comparative Biochemistry and Physiology A: 621: 179-183, 1979

Microcolumn liquid chromatography of nucleoside 5 monophosphates nucleoside 5 diphosphates and nucleoside 5 triphosphates on the khzh 1305 microspectrophotometer. 1985

A new mechanism for dephosphorylation of nucleoside di- and triphosphates. I. Transphosphorylation between nucleoside monophosphates and nucleoside triphosphates. Arch Biochem And Biophys: 488-492, 1954

Control mechanism for effects of protons and nucleoside triphosphates on hemoglobin oxygen affinity in fish. Acta Physiologica Scandinavica 121(3): 5A, 1984

Functional interaction between fish hemo globin erythrocytic nucleoside tri phosphates and magnesium. Acta Physiologica Scandinavica 102(1): 20A-21A, 1978

Dismutation reactions of nucleoside polyphosphates. VI. Chemical synthesis of [gamma-32P]nucleoside 5'-triphosphates. Biochemistry 7(2): 875-881, 1968

The role of Ureaplasma nucleoside monophosphate kinases in the synthesis of nucleoside triphosphates. Febs Journal 274(8): 1983-1990, 2007

Hydrolysis of nucleoside phosphates. 6. On the mechanism of the metal ion promoted dephosphorylation of purine nucleoside 5'-triphosphates. Journal of the American Chemical Society 98(23): 7390-7400, 1976

Novel synthesis of nucleoside 5'-phosphoramidates through reaction of nucleoside triphosphates with amines mediated by trimethylsilyl chloride. Journal of Organic Chemistry 70(17): 6676-6679, 2005

Studies on the allosteric modification of nucleoside diphosphatase activity by magnesium nucleoside triphosphates and inosine diphosphate. Biochemistry 10(12): 2272-2277, 1971