E

3-isopropylmalate dehydratase large subunit

Histidinol dehydrogenase

Histidinol-phosphate aminotransferase

Imidazoleglycerol-phosphate dehydratase

Imidazole glycerol phosphate synthase subunit HisF

Imidazole glycerol phosphate synthase subunit HisH

1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase

Phosphoribosyl-AMP cyclohydrolase

Serine hydroxymethyltransferase

Probable glycine dehydrogenase