5.3.1.13 - 5.3.1.13 expressed in Escherichia coli 5.3.1.13 expressed in Escherichia coli BB-8 cells 5.3.1.13 expressed in Escherichia coli BL21(DE3) cells 5.3.1.13 expression in Escherichia coli 5.3.1.13 GutQ. GutQ is a second copy of D-arabinose 5-phosphate isomerase (API) from the genome of Escherichia coli K-12, with biochemical properties similar to those of KdsD 5.3.1.13 kdsD and gutQ, API is encoded by the two paralogous genes, which may substitute for each other, expression of His-tagged KdsD in Escherichia coli strain BL21(DE3), subcloning in strain DH5alpha 5.3.1.13 overexpression in Escherichia coli