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. 2011 Aug;79(8):3388–3396. doi: 10.1128/IAI.00166-11

Table 1.

Codon usage is compared for BoNT/A Hc gene fragments

Amino acid Codon No. of times codon occursa
WT Y SF
Ala GCG 0 1 0
Ala GCA 5 0 3
Ala GCT 5 9 3
Ala GCC 0 0 4
Cys TGT 2 1 1
Cys TGC 2 3 3
Asp GAT 22 5 7
Asp GAC 2 19 17
Glu GAG 1 1 12
Glu GAA 17 17 6
Phe TTT 17 0 6
Phe TTC 0 17 11
Gly GGG 3 0 0
Gly GGA 8 0 4
Gly GGT 10 22 11
Gly GGC 2 1 8
His CAT 4 0 1
His CAC 0 4 3
Ile ATA 24 0 6
Ile ATT 22 0 15
Ile ATC 3 49 28
Lys AAG 4 8 23
Lys AAA 29 25 10
Leu TTG 3 1 5
Leu TTA 23 0 0
Leu CTG 1 33 17
Leu CTA 4 0 0
Leu CTT 3 0 3
Leu CTC 0 0 9
Met ATG 9 9 9
Asn AAT 53 25 19
Asn AAC 4 32 38
Pro CCG 0 9 0
Pro CCA 5 0 3
Pro CCT 4 0 2
Pro CCC 0 0 4
Gln CAG 4 15 10
Gln CAA 11 0 5
Arg AGG 5 0 5
Arg AGA 14 0 2
Arg CGG 0 0 0
Arg CGA 0 0 0
Arg CGT 1 13 6
Arg CGC 0 7 7
Ser AGT 15 0 3
Ser AGC 2 0 9
Ser TCG 0 0 0
Ser TCA 11 0 5
Ser TCT 6 20 6
Ser TCC 0 14 11
Thr ACG 0 0 1
Thr ACA 6 0 4
Thr ACT 10 7 4
Thr ACC 0 9 7
Val GTG 0 0 12
Val GTA 19 9 3
Val GTT 3 13 2
Val GTC 1 1 6
Trp TGG 9 9 9
Tyr TAT 26 0 5
Tyr TAC 2 28 23
End TGA 0 0 0
End TAG 0 0 0
End TAA 0 0 0
a

WT, wild-type C. botulinum (GenBank accession no. X52066); Y, optimized for expression in yeast (GenBank Accession no. U22962); SF, optimized for expression in SF9 cells.