Table 1. Distribution of mutants obtained in the three oligonucleotide libraries.

Clone genotype	Library I, α = 49.5%	Library II, α = 78.9%	Library III, α = 10.6%
Wild-type	7	1	27
Single mutants	5	2	11
Double mutants	13	6	5
Triple mutants	8	9	0
Quadruple mutants	2	18	0
Deletions	5	1	4
Insertions	2	1	2
Total	42	38	49