Fig. 1From: Production of l-alanyl-l-glutamine by immobilized Pichia pastoris GS115 expressing α-amino acid ester acyltransferaseCodon usage bias adjustment of SsAET gene. Colors of codons indicated the frequency in host P. pastoris. Rarely used codons were shown in cyan and frequently used codons were shown in red. A codon with more red indicated higher frequency in P. pastoris for enhanced expressionBack to article page