Proline porters effect the utilization of proline as nutrient or osmoprotectant for bacteria - PubMed (original) (raw)
Review
. 1988 Dec;106(3):183-202.
doi: 10.1007/BF01872157.
Affiliations
- PMID: 3072423
- DOI: 10.1007/BF01872157
Review
Proline porters effect the utilization of proline as nutrient or osmoprotectant for bacteria
J M Wood. J Membr Biol. 1988 Dec.
Abstract
Proline is utilized by all organisms as a protein constituent. It may also serve as a source of carbon, energy and nitrogen for growth or as an osmoprotectant. The molecular characteristics of the proline transport systems which mediate the multiple functions of proline in the Gram negative enteric bacteria, Escherichia coli and Salmonella typhimurium, are now becoming apparent. Recent research on those organisms has provided both protocols for the genetic and biochemical characterization of the enzymes mediating proline transport and molecular probes with which the degree of homology among the proline transport systems of archaebacteria, eubacteria and eukaryotes can be assessed. This review has provided a detailed summary of recent research on proline transport in E. coli and S. typhimurium; the properties of other organisms are cited primarily to illustrate the generality of those observations and to show where homologous proline transport systems might be expected to occur. The characteristics of proline transport in eukaryotic microorganisms have recently been reviewed (Horak, 1986).
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