Crystal Structure of IscR bound to its promoter

Studies of IscR reveal a unique mechanism for metal-dependent regulation of DNA binding specificity.

MRLTSKGRYAVTAMLDVALNSEAGPVPLADISERQGISLSYLEQLFSRLRKNGLVSSVRGPGGGYLLGKDASSIAVGEVI
SAVDESVDATRAQGKGGAQGGDKALTHALWRDLSDRLTGFLNNITLGELVNNQEVLDVSGRQHTHDAPRTRTQDAIDVKL
RAGGHHHHHH

(DA)(DT)(DA)(DA)(DA)(DT)(DC)(DC)(DA)(DC)(DA)(DC)(DA)(DG)(DT)(DT)(DT)(DG)(DT)(DA)
(DT)(DT)(DG)(DT)(DT)(DT)(DT)(DG)(DT)

(DA)(DC)(DA)(DA)(DA)(DA)(DC)(DA)(DA)(DT)(DA)(DC)(DA)(DA)(DA)(DC)(DT)(DG)(DT)(DG)
(DT)(DG)(DG)(DA)(DT)(DT)(DT)(DA)(DT)

0.2-0.3M Ammonium Phosphate, 20% glycerol, pH 7, VAPOR DIFFUSION, HANGING DROP, temperature 298K

wHTH, Protein-DNA Complex, Iron-Sulfur Cluster, winged Helix-turn-Helix, Transcriptional Regulator, Redox sensor, DNA Binding, Transcription-DNA complex

MRLTSKGRYAVTAMLDVALNSEAGPVPLADISERQGISLSYLEQLFSRLRKNGLVSSVRGPGGGYLLGKDASSIAVGEVI
SAVDESVDATRCQGKGGCQGGDKCLTHALWRDLSDRLTGFLNNITLGELVNNQEVLDVSGRQHTHDAPRTRTQDAIDVKL
RA