| Literature DB >> 6954523 |
Abstract
Comparison of the amino acid compositions of purified proteins indicates the presence of overlapping evolutionary affinities among enzymes of the beta-ketoadipate pathway. Isofunctional enzymes from different bacterial genera share a common evolutionary origin. Moreover, enzymes that mediate isofunctional or chemically analogous reactions within an organism appear to be evolutionarily homologous. Most remarkably, closely similar amino acid compositions are found in enzymes that mediate the following consecutive metabolic steps: lactonization, decarboxylation, hydrolysis, and transfer of a thioester bond.Entities:
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Year: 1982 PMID: 6954523 PMCID: PMC346514 DOI: 10.1073/pnas.79.12.3794
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205