GCA_000018585.1 P9211_05391 definition phosphoribosylanthranilate isomerase GCA_000018585.1 P9211_06921 definition putative Anthranilate synthase component II GCA_000018585.1 P9211_16971 definition Anthranilate synthase component I and chorismate binding enzyme GCA_000018585.1 P9211_18281 definition Anthranilate phosphoribosyltransferase GCA_000018585.1 P9211_11401 gene_symbol thrA