A catalase from Streptomyces coelicolor A3(2)

Article Abstract:

Streptomyces coelicolor A3(2) produces a catalase which is a tetramere containing a M(sub r) 55000 subunit and the N-terminal and peptide sequence of this enzyme are similar to that of catalases produced by other microbes and mammals. This enzyme protects the cell during oxidative stress and increases during growth of the cell being maximum during the stationary phase. A southern blot analysis shows that only one catalase is present in Streptomyces coelicolor A3(2).

Microbial enzymes

---

Propionyl-CoA carboxylase from Streptomyces coelicolor A3(2): cloning of the gene encoding the biotin-containing subunit

Article Abstract:

Previous research has detected high activity of propionyl-CoA carboxylase (PCC) in cell-free extracts of Streptomyces coelicolor A3(2), suggesting that the enzyme plays a major role in S. coelicolor metabolism. To get a better idea of the precise role of PCC in S. coelicolor, PCC is purified and subjected to N-terminal sequencing. The gene encoding one of the subunits is cloned. It is shown that PCC has a significant impact on cellular metabolism in S. coelicolor.

Enzymes, Enzyme structure-activity relationships, Cell metabolism

---

Evidence for a novel class of microbial 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase in Streptomyces coelicolor A3(2), Streptomyces rimosus and Neurospora crassa

Article Abstract:

The Streptomyces and Neurospora 3-deoxy-D-arabino-heptulosonate-7-phosphate (DAHP) synthases are similar to plant DAHP synthases but are otherwise unrelated to other microbial DAHP synthase sequences. This was gleaned from the purification and characterization of the DAHP synthases from Streptomyces coelicolor A3(2), Streptomyces rimosus and Neurospora crassa and the determination of the N-terminal amino acid sequence for the enzymes.

Amino acid sequence, Amino acid sequencing

Similar abstracts:

• Abstracts: A genomewide analysis provides evidence for novel linkages in inflammatory bowel disease in a large European cohort
• Abstracts: Relevant double mutations in bioengineered Streptomyces clavuligerus deacetoxycephalosporin C synthase result in higher binding specificities which improve penicillin bioconversion
• Abstracts: p62(super dok): a constitutively tyrosine-phosphorylated GAP-associated protein in chronic myelogenous leukemia progenitor cells
• Abstracts: Comparative linkage maps for the mosquitoes (Culex pipiens and Aedes aegypti) based on common RFLP loci. Restriction fragment length polymorphism mapping of quantitative trait loci for malaria parasite susceptibility in the mosquito Aedes aegypti
• Abstracts: The genetical and environmental determination of phally polymorphism in the freshwater snail Bulinus truncatus

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.