The evolving story of AtzT, a periplasmic binding protein

MGSSHHHHHHSSGLVPRGSHMQEPLKVAFVYAGPVSDAGYTYAHDQGRLAMEKNLGAKVKSSYVENVPEGADAERVIRKL
AADGNKLIFTTSFGFMNPTERVAKAFPNVVFEHATGVKLAKNLGVYESRQYEGTYLQGVLAAKMTKTGVIGFVGSFPVPE
VIRNINAYTLGAQSVNPKIKTKVIWVSTWYDPAKERQAAETLIAQGADVLTQNTNSPATLQVAQEKGKYAFGCDADMSKF
APKAHLTASISNWGDFYTKTAQAVMAGTWKSEEVHWGMAEGMVKMAPLNAAVPPDAAKLFEEKKAAMVSGKIKPFQGPLK
DQSGAVKVAAGSDLPLASLKGMNWYVQGVEGTIPK

Protein at 20 mg/mL in SD2 plates incubated at 20 C. Crystallisation conditions contained 6-8% Jeffamine M600 with 2-7% MPD and trisodium citrate at 1.1-1.2 M

HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS

SAD phasing, periplasmic binding protein, evolution from purine binding to atrazine binding, TRANSPORT PROTEIN

QEPLKVAFVYAGPVSDAGYTYAHDQGRLAMEKNLGAKVKSSYVENVPEGADAERVIRKLAADGNKLIFTTSFGFMNPTER
VAKAFPNVVFEHATGVKLAKNLGVYESRQYEGTYLQGVLAAKMTKTGVIGFVGSFPVPEVIRNINAYTLGAQSVNPKIKT
KVIWVSTWYDPAKERQAAETLIAQGADVLTQNTNSPATLQVAQEKGKYAFGCDADMSKFAPKAHLTASISNWGDFYTKTA
QAVMAGTWKSEEVHWGMAEGMVKMAPLNAAVPPDAAKLFEEKKAAMVSGKIKPFQGPLKDQSGAVKVAAGSDLPLASLKG
MNWYVQGVEGTIPK