1.1.99.22 expression in Escherichia coli BL21 as His-tag fusion protein 668061 1.1.99.22 expression in Escherichia coli BL21(DE3)pLysS as His-tag fusion protein 674959 1.1.99.22 gene sldBA, DNA and amino acid sequence determination and analysis 721386 1.1.99.22 genes sldB and sldA encoding the small and the large subunit of the enzyme 721867