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- W2063856596 endingPage "e201210002" @default.
- W2063856596 startingPage "e201210002" @default.
- W2063856596 abstract "The hemoglobin (VHb) from Vitreoscilla was the first bacterial hemoglobin discovered. Its structure and function have been extensively investigated, and engineering of a wide variety of heterologous organisms to express VHb has been performed to increase their growth and productivity. This strategy has shown promise in applications as far-ranging as the production of antibiotics and petrochemical replacements by microorganisms to increasing stress tolerance in plants. These applications of VHb technology have generally been of the black box variety, wherein the endpoint studied is an increase in the levels of a certain product or improved growth and survival. Their eventual optimization, however, will require a thorough understanding of the various functions and activities of VHb, and how VHb expression ripples to affect metabolism more generally. Here we review the current knowledge of these topics. VHb's functions all involve oxygen binding (and often delivery) in one way or another. Several biochemical and structure-function studies have provided an insight into the molecular details of this binding and delivery. VHb activities are varied. They include supply of oxygen to oxygenases and the respiratory chain, particularly under low oxygen conditions; oxygen sensing and modulation of transcription factor activity; and detoxification of NO, and seem to require interactions of VHb with partner proteins. VHb expression affects the levels of ATP and NADH, although not enormously. VHb expression may affect the level of many compounds of intermediary metabolism, and, apparently, alters the levels of expression of many genes. Thus, the metabolic changes in organisms engineered to express VHb are likely to be numerous and complicated." @default.
- W2063856596 created "2016-06-24" @default.
- W2063856596 creator A5002752327 @default.
- W2063856596 creator A5066733001 @default.
- W2063856596 creator A5073478356 @default.
- W2063856596 date "2012-10-01" @default.
- W2063856596 modified "2023-09-27" @default.
- W2063856596 title "THE BIOCHEMISTRY OF VITREOSCILLA HEMOGLOBIN" @default.
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- W2063856596 doi "https://doi.org/10.5936/csbj.201210002" @default.
- W2063856596 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3962134" @default.
- W2063856596 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24688662" @default.
- W2063856596 hasPublicationYear "2012" @default.
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