- helices | _ | _ |
AK(P) | not sequence selective
contacts with sugar-phosphate backbone. | Histone H1 |
Helix-turn-helix | Major groove, orientation within groove is variable | E.coli CAP (440 kb), tet repressor |
Homeodomain | Major groove + a few minor groove contacts | homeobox proteins |
Anfingers (TFIIIA type) | Major groove | TFIIIA |
Zn fingers (steroid receptor type) | Major groove | glucocorticoid receptor |
Zn fingers (GAL4 type) | Major groove | GAL4 |
Bzip (leucine zipper) | Major groove | GCN4, Fos, Jun (293 kb) |
Parallel - helices | Major groove | EcoR I (208 kb monomer) |
- structures | _ | _ |
Anti-parallel strands | +/- sequence selective. Major groove / minor groove contacts | E.coli HU protein |
GR(P) and SPKK | Minor groove | nucleolin |
Other | _ | _ |
Helix-loop-helix | -helical dimerisation, recognition assumed-helical. | scute |
HMG-box | sequence and structure selective, minor groove contacts. | HMG-1 |
Y-box | _ | FRY-1 |
* sequence selective unless otherwise noted.
Adapted from P.54 of DNA-Protein interactions, Andrew Travers
(1993)