《英文msh词典》Motif,AT-Hook
[入口词] Motif,AT-Hook
[主题词] AT-Hook Motifs
[英文释义] DNA-binding motifs,first described in one of the HMGA PROTEINS,HMG-I(Y). They consist of positively charged sequences of nine amino acids centered on the invariant tripeptide glycine-arginine-proline. They act to fasten the protein to an AT RICH SEQUENCE in the DNA.