Expression of Double Vitreoscilla Hemoglobin Enhances Growth and Alters Ribosome and tRNA Levels in Escherichia coli

2002 ◽  
Vol 18 (3) ◽  
pp. 652-656 ◽  
Author(s):  
V. Roos ◽  
C.I.J. Andersson ◽  
C. Arfvidsson ◽  
K.-G. Wahlund ◽  
L. Bulow
Keyword(s):  
Escherichia Coli ◽  
Vitreoscilla Hemoglobin

scholarly journals Protein composition of Vitreoscilla hemoglobin inclusion bodies produced in Escherichia coli.

1990 ◽  
Vol 265 (21) ◽  
pp. 12728-12733
Author(s):  
R A Hart ◽  
U Rinas ◽  
J E Bailey
Keyword(s):  
Escherichia Coli ◽  
Inclusion Bodies ◽  
Protein Composition ◽  
Vitreoscilla Hemoglobin

scholarly journals Characterization of the oxygen-dependent promoter of the Vitreoscilla hemoglobin gene in Escherichia coli.

1989 ◽  
Vol 171 (11) ◽  
pp. 5995-6004 ◽  
Author(s):  
C Khosla ◽  
J E Bailey
Keyword(s):  
Escherichia Coli ◽  
Vitreoscilla Hemoglobin ◽  
Hemoglobin Gene

Evidence for partial export of Vitreoscilla hemoglobin into the periplasmic space in Escherichia coli

1989 ◽  
Vol 210 (1) ◽  
pp. 79-89 ◽  
Author(s):  
Chaitan Khosla ◽  
James E. Bailey
Keyword(s):  
Escherichia Coli ◽  
Vitreoscilla Hemoglobin ◽  
Periplasmic Space

Further investigation of the mechanism of Vitreoscilla hemoglobin (VHb) protection from oxidative stress in Escherichia coli

Biologia ◽  
2011 ◽  
Vol 66 (5) ◽  
Author(s):  
Meltem Akbas ◽  
Tugrul Doruk ◽  
Serhat Ozdemir ◽  
Benjamin Stark
Keyword(s):  
Oxidative Stress ◽  
Escherichia Coli ◽  
Hydrogen Peroxide ◽  
Superoxide Dismutase ◽  
Stationary Phase ◽  
Exponential Phase ◽  
Vitreoscilla Hemoglobin ◽  
Sod Activity ◽  
E Coli ◽  
Hydrogen Peroxide Treatment

AbstractIn Escherichia coli, Vitreoscilla hemoglobin (VHb) protects against oxidative stress, perhaps, in part, by oxidizing OxyR. Here this protection, specifically VHb-associated effects on superoxide dismutase (SOD) and catalase levels, was examined. Exponential or stationary phase cultures of SOD+ or SOD− E. coli strains with or without VHb and oxyR antisense were treated with 2 mM hydrogen peroxide without sublethal peroxide induction, and compared to untreated control cultures. The hydrogen peroxide treatment was toxic to both SOD+ and SOD− cells, but much more to SOD− cells; expression of VHb in SOD+ strains enhanced this toxicity. In contrast, the presence of VHb was generally associated in the SOD+ background with a modest increase in SOD activity that was not greatly affected by oxyR antisense or peroxide treatment. In both SOD+ and SOD− backgrounds, VHb was associated with higher catalase activity both in the presence and absence of peroxide. Contrary to its stimulatory effects in stationary phase, in exponential phase oxyR antisense generally decreased VHb levels.

scholarly journals Enhancing fatty acid production in Escherichia coli by Vitreoscilla hemoglobin overexpression

2016 ◽  
Vol 114 (2) ◽  
pp. 463-467 ◽  
Author(s):  
Di Liu ◽  
Ni Wan ◽  
Fuzhong Zhang ◽  
Yinjie J. Tang ◽  
Stephen G. Wu
Keyword(s):  
Escherichia Coli ◽  
Fatty Acid ◽  
Acid Production ◽  
Vitreoscilla Hemoglobin ◽  
Fatty Acid Production
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