Skip to main content
Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1975 May;72(5):1834–1837. doi: 10.1073/pnas.72.5.1834

Coezyme A requirement of malaria parasites: effects of coenzyme A precursors on extracellular development in vitro of Plasmodium lophurae.

W Trager, F H Brohn
PMCID: PMC432641  PMID: 1057772

Abstract

The extracellular development in vitro of the avian malaria Plasmodium lophurae is favored by addition to the medium of coenzyme A at 0.05 mM. Coenzyme A can be replaced by dephospho-coenzyme A and to some extent by phosphopantetheine, but not by phosphopantothenoylcysteine or by phosphopantothenic acid. The activity of the two former precursors results from their conversion to coenzyme A by enzymes in the erythrocyte extract of the culture medium in the presence of ATP, also an essential ingredient of the medium. Hence, P. lophurae in its erythrocytic stage has an absolute requirement for an exogenous source of coenzyme A.

Full text

PDF
1834

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. BOVARNICK M. R., ALLEN E. G. Reversible inactivation of typhus Rickettsiae. I. Inactivation by freezing. J Gen Physiol. 1954 Nov 20;38(2):169–179. doi: 10.1085/jgp.38.2.169. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Bennett T. P., Trager W. Pantothenic acid metabolism during avian malaria infection: pantothenate kinase activity in duck erythrocytes and in Plasmodium lophurae. J Protozool. 1967 May;14(2):214–216. doi: 10.1111/j.1550-7408.1967.tb01985.x. [DOI] [PubMed] [Google Scholar]
  3. Rodwell A. W. The supply of cholesterol and fatty acids for the growth of mycoplasmas. J Gen Microbiol. 1969 Sep;58(1):29–37. doi: 10.1099/00221287-58-1-29. [DOI] [PubMed] [Google Scholar]
  4. TOURTELLOTTE M. E., MOROWITZ H. J., KASIMER P. DEFINED MEDIUM FOR MYCOPLASMA LAIDLAWII. J Bacteriol. 1964 Jul;88:11–15. doi: 10.1128/jb.88.1.11-15.1964. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. TRAGER W. Folinic acid and non-dialyzable materials in the nutrition of malaria parasites. J Exp Med. 1958 Nov 1;108(5):753–772. doi: 10.1084/jem.108.5.753. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. TRAGER W. Studies on the extracellular cultivation of an intracellular parasite (avian malaria). I. Development of the organisms in erythrocyte extracts, and the favoring effect of adenosinetriphosphate. J Exp Med. 1950 Oct 1;92(4):349–366. doi: 10.1084/jem.92.4.349. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Trager W. Coenzyme A and the antimalarial action in vitro of antipantothenate against Plasmodium lophurae, P. coatneyi and P. falciparum. Trans N Y Acad Sci. 1966 Jun;28(8):1094–1108. doi: 10.1111/j.2164-0947.1966.tb02410.x. [DOI] [PubMed] [Google Scholar]
  8. Trager W. Malaria parasites (Plasmodium lophurae) developing extracellularly in vitro: incorporation of labeled precursors. J Protozool. 1971 Aug;18(3):392–399. doi: 10.1111/j.1550-7408.1971.tb03341.x. [DOI] [PubMed] [Google Scholar]
  9. Trager W. Some aspects of intracellular parasitism. Science. 1974 Jan 25;183(4122):269–273. doi: 10.1126/science.183.4122.269. [DOI] [PubMed] [Google Scholar]
  10. Yoshioka M., Yoshioka S., Tamura Z., Ohta K. Growth responses of Bifidobacterium bifidum to coenzyme A, its precursors and carrot extract. Jpn J Microbiol. 1968 Dec;12(4):395–402. doi: 10.1111/j.1348-0421.1968.tb00412.x. [DOI] [PubMed] [Google Scholar]

Articles from Proceedings of the National Academy of Sciences of the United States of America are provided here courtesy of National Academy of Sciences

RESOURCES