scholarly journals AglB, catalyzing the oligosaccharyl transferase step of the archaeal N ‐glycosylation process, is essential in the thermoacidophilic crenarchaeon Sulfolobus acidocaldarius

2014 ◽  
Vol 3 (4) ◽  
pp. 531-543 ◽  
Author(s):  
Benjamin H. Meyer ◽  
Sonja‐Verena Albers
Genetics ◽  
1999 ◽  
Vol 152 (4) ◽  
pp. 1407-1415 ◽  
Author(s):  
Katherine J Schmidt ◽  
Kristen E Beck ◽  
Dennis W Grogan

Abstract The hyperthermophilic archaeon Sulfolobus acidocaldarius exchanges and recombines chromosomal markers by a conjugational mechanism, and the overall yield of recombinants is greatly increased by previous exposure to UV light. This stimulation was studied in an effort to clarify its mechanism and that of marker exchange itself. A variety of experiments failed to identify a significant effect of UV irradiation on the frequency of cell pairing, indicating that subsequent steps are primarily affected, i.e., transfer of DNA between cells or homologous recombination. The UV-induced stimulation decayed rather quickly in parental cells during preincubation at 75°, and the rate of decay depended on the incubation temperature. Preincubation at 75° decreased the yield of recombinants neither from unirradiated parental cells nor from parental suspensions subsequently irradiated. We interpret these results as evidence that marker exchange is stimulated by recombinogenic DNA lesions formed as intermediates in the process of repairing UV photoproducts in the S. acidocaldarius chromosome.


1999 ◽  
Vol 12 (2) ◽  
pp. 177-185 ◽  
Author(s):  
Decheng Yang ◽  
Isolde Kusser ◽  
Andreas K.E. Köpke ◽  
Ben F. Koop ◽  
Alastair T. Matheson

1996 ◽  
Vol 19 (3) ◽  
pp. 312-321 ◽  
Author(s):  
Patrick J. Keeling ◽  
Sandra L. Baldauf ◽  
W. Ford Doolittle ◽  
Wolfram Zillig ◽  
Hans-Peter Klenk

1991 ◽  
Vol 43 (2-3) ◽  
pp. 359
Author(s):  
S. Anemüller ◽  
E. Bill ◽  
A.X. Trautwein ◽  
G. Schäfer

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