G. Feller et al., EXPRESSION OF PSYCHROPHILIC GENES IN MESOPHILIC HOSTS - ASSESSMENT OFTHE FOLDING STATE OF A RECOMBINANT ALPHA-AMYLASE, Applied and environmental microbiology, 64(3), 1998, pp. 1163-1165
alpha-Amylase from the antarctic psychrophile Alteromonas haloplanktis
is synthesized at 0 +/- 2 degrees C by the wild strain. This heat-lab
ile alpha-amylase folds correctly when overexpressed in Escherichia co
li, providing the culture temperature is sufficiently low to avoid irr
eversible denaturation. In the described expression system, a compromi
se between enzyme stability and E. coli growth rate is reached at 18 d
egrees C.