title: A tale of two synthetases.
authors.forename: P J
authors.initials: PJ
authors.lastname: Artymiuk
authors.forename: D W
authors.initials: DW
authors.lastname: Rice
authors.forename: A R
authors.initials: AR
authors.lastname: Poirrette
authors.forename: P
authors.initials: P
authors.lastname: Willet
mesh_terms: D001426:Bacterial Proteins / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D001665:Binding Sites; D005075:Biological Evolution; D019731:Carbon-Nitrogen Ligases; D003196:Computer Graphics; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism; D029968:Escherichia coli Proteins; D011487:Protein Conformation; D012097:Repressor Proteins / Q000737:chemistry* / Q000378:metabolism; D012714:Serine-tRNA Ligase / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D014157:Transcription Factors
chemical_list: D001426:Bacterial Proteins; D004268:DNA-Binding Proteins; D029968:Escherichia coli Proteins; D012097:Repressor Proteins; D014157:Transcription Factors; D012714:Serine-tRNA Ligase; D019731:Carbon-Nitrogen Ligases; C058125:birA protein, E coli