HAEM SYNTHASE AND COBALT PORPHYRIN SYNTHASE IN VARIOUS MICRO-ORGANISMS
نویسندگان
چکیده
منابع مشابه
Haem Synthase and Cobalt Porphyrin Synthase in Various Micro-organisms.
1. The preparation of a crude extract of Clostridium tetanomorphum containing cobalt porphyrin synthase but little haem-synthase activity is described. 2. The properties of cobalt porphyrin synthase in the clostridial extracts is compared with the properties of a haem synthase present in crude extracts of the yeast Torulopsis utilis. 3. Cobalt porphyrin synthase in extracts of C. tetanomorphum ...
متن کاملHaem insertion, dimerization and reactivation of haem-free rat neuronal nitric oxide synthase.
The nitric oxide synthases are dimeric enzymes in which the intersubunit contacts are formed by the P-450-haem-containing, tetrahydrobiopterin-dependent oxygenase domain. The dimerization of the neuronal isoenzyme was shown previously to be triggered by Fe-protoporphyrin IX (haemin). We report for the first time the reactivation of the haem-deficient neuronal isoenzyme (from rat, expressed in a...
متن کاملPorphyrin Biosynthesis in Normal and Haem
Heine biosynthesis was studied in the segregants of Saccharomyces cerevisiae (DW10 tetrade 2) from D27 and D27/C6 mating, as a function of the carbon source in the growth medium and the physiological state of the cells. The effects of the HEM R+ gene on the 5-aminolevulinate synthase (ALA-S) and 5-aminolevulinate dehydratase (ALA-D) activities of heine biosynthesis in cells grown on nonfermenta...
متن کاملGenetic analysis of polyketide synthase and peptide synthase genes of cyanobacteria as a mining tool for new pharmaceutical compounds
Cyanobacteria are considered a promising source for new pharmaceutical lead compounds and a large number of chemically diverse and bioactive metabolites have been obtained from cyanobacteria. Despite of several worldwide studies on prevalence of NRPSs and PKSs among the cyanobacteria, none of them included Iranian cyanobacteria of Kermanshah province. Therefore, the aim of this study was t...
متن کاملthymidilate synthase and methionine synthase polymorphisms in children with acute lymphoblastic leukemia in western iran
introduction: polymorphism in genes involved in folate metabolism may cotribute to the susceptibility to acute lymphoblastic leukemia (all). patients and methods : to examine the influence of polymorphism in thymidylate synthase (ts 28-bp repeat) and methionine synthase (ms a2756g) genes on the susceptibility to all, 73 children with all and 128 age and gender matched, unrelated healthy individ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1965
ISSN: 0006-2936
DOI: 10.1042/bj0940557