DNA shuffling of subgenomic sequences of subtilisin.
DNA family shuffling of 26 protease genes was used to create a library of chimeric proteases that was screened for four distinct enzymatic properties. Multiple clones were identified that were significantly improved over any of the parental enzymes for each individual property. Family shuffling, also known as molecular breeding, efficiently created all of the combinations of parental properties, producing a great diversity of property combinations in the progeny enzymes. Thus, molecular breeding, like classical breeding, is a powerful tool for recombining existing diversity to tailor biological systems for multiple functional parameters.
Ness
J E
JE
Maxygen, 3410 Central Expressway, Santa Clara, CA 95051, USA.
Welch
M
M
Giver
L
L
Bueno
M
M
Cherry
J R
JR
Borchert
T V
TV
Stemmer
W P
WP
Minshull
J
J
D004795:Enzyme Stability; D015723:Gene Library; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D010446:Peptide Fragments / Q000145:classification; D010447:Peptide Hydrolases / Q000235:genetics; D046988:Proteasome Endopeptidase Complex; D015202:Protein Engineering / Q000379:methods*; D011993:Recombinant Fusion Proteins / Q000302:isolation & purification / Q000378:metabolism*; D011995:Recombination, Genetic; D012641:Selection, Genetic; D012697:Serine Endopeptidases / Q000235:genetics* / Q000378:metabolism; D013381:Subtilisins / Q000235:genetics* / Q000302:isolation & purification / Q000378:metabolism
D010446:Peptide Fragments; D011993:Recombinant Fusion Proteins; D010447:Peptide Hydrolases; D012697:Serine Endopeptidases; D013381:Subtilisins; C032923:microbial serine proteinases; D046988:Proteasome Endopeptidase Complex; C061553:ATP dependent 26S protease