Cell-Free Protein Systems from Yersinia pestis are Functional and Growth-Temperature Dependent

2021 ◽  
Author(s):  
Nathan D. McDonald ◽  
Katherine A. Rhea ◽  
Kimberly L. Berk ◽  
Julie L. Zacharko ◽  
Aleksandr E. Miklos
Keyword(s):  
Yersinia Pestis ◽  
Growth Temperature ◽  
Temperature Dependent ◽  
Free Protein

scholarly journals Temperature Regulation of the Hemin Storage (Hms+) Phenotype of Yersinia pestis Is Posttranscriptional

2004 ◽  
Vol 186 (6) ◽  
pp. 1638-1647 ◽  
Author(s):  
Robert D. Perry ◽  
Alexander G. Bobrov ◽  
Olga Kirillina ◽  
Heather A. Jones ◽  
Lisa Pedersen ◽  
...  
Keyword(s):  
Membrane Proteins ◽  
Yersinia Pestis ◽  
Growth Temperature ◽  
Temperature Regulation ◽  
Iron Status ◽  
Outer Membrane Proteins ◽  
Western Blots ◽  
Protein Levels ◽  
The Stability ◽  
In Cells

ABSTRACT In Yersinia pestis, the Congo red (and hemin) binding that is characteristic of the Hms+ phenotype occurs at temperatures up to 34°C but not at higher temperatures. Manifestation of the Hms+ phenotype requires at least five proteins (HmsH, -F, -R, -S, and -T) that are organized into two separate operons: hmsHFRS and hmsT. HmsH and HmsF are outer membrane proteins, while HmsR, HmsS, and HmsT are predicted to be inner membrane proteins. We have used transcriptional reporter constructs, RNA dot blots, and Western blots to examine the expression of hms operons and proteins. Our studies indicate that transcription from the hmsHFRS and hmsT promoters is not regulated by the iron status of the cells, growth temperature, or any of the Hms proteins. In addition, the level of mRNA for both operons is not significantly affected by growth temperature. However, protein levels of HmsH, HmsR, and HmsT in cells grown at 37°C are very low compared to those in cells grown at 26°C, while the amounts of HmsF and HmsS show only a moderate reduction at the higher growth temperature. Neither the Pla protease nor a putative endopeptidase (Y2360) encoded upstream of hmsH is essential for temperature regulation of the Hms+ phenotype. However, HmsT at 37°C is sensitive to degradation by Lon and/or ClpPX. Thus, the stability of HmsH, HmsR, and HmsT proteins likely plays a role in temperature regulation of the Hms+ phenotype of Y. pestis.

The effect of growth temperature on the nanoscale biochemical surface properties of Yersinia pestis

2016 ◽  
Vol 408 (20) ◽  
pp. 5585-5591 ◽  
Author(s):  
Congzhou Wang ◽  
Cristina E. Stanciu ◽  
Christopher J. Ehrhardt ◽  
Vamsi K. Yadavalli
Keyword(s):  
Yersinia Pestis ◽  
Surface Properties ◽  
Growth Temperature

Growth temperature dependent band alignment at the Ga0.51In0.49P to GaAs heterointerfaces

1996 ◽  
Vol 79 (1) ◽  
pp. 305-309 ◽  
Author(s):  
Q. Liu ◽  
S. Derksen ◽  
W. Prost ◽  
A. Lindner ◽  
F. J. Tegude
Keyword(s):  
Growth Temperature ◽  
Band Alignment ◽  
Temperature Dependent
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