... R354A(–): 5¢-ggag aggtagccagagcataacg-3¢; N260A(+): 5¢-gcactggttgctggtaccgctg-3¢,N260A(–): 5¢-cagcggtaccagcaaccagtgc-3¢;Q348A(+):5¢-aaacgaaagcggaccgttat-3¢, Q348A(–): 5¢-ataacggtccgctttcggttt-3¢; ... Y3 51F(+): 5¢-caggaccgttttgctctgcg-3¢, Y3 51F(–):5¢-cgcagagcaaaacggtcctg-3¢; Y1 10F(+): 5¢-ccgactcctttggcgttacc-3¢, Y1 10F(–): 5¢-ggtaacgccaaaggagtcgg-3¢; R354A(+):5¢-cgttatgctctggctacctctcc-3¢, ... 5¢-ggtggtaacgcccaggggac-3¢, F400A(–):5¢-gtc ccctgggcgttaccacc-3¢; L138H(+): 5¢-gatccgcttccacaacgctg-3¢, L138H(–): 5¢-cagcgttgtggaagcggatc-3.The mutations were verified by sequence analysis usingthe...