Beasley met sandbox: Difference between revisions
New page: left|200px <!-- The line below this paragraph, containing "STRUCTURE_1d66", creates the "Structure Box" on the page. You may change the PDB parameter (which sets the PD... |
No edit summary |
||
(One intermediate revision by the same user not shown) | |||
Line 12: | Line 12: | ||
A specific DNA complex of the 65-residue, N-terminal fragment of the yeast transcriptional activator, GAL4, has been analysed at 2.7 A resolution by X-ray crystallography. The protein binds as a dimer to a symmetrical 17-base-pair sequence. A small <scene name='Beasley_met_sandbox/Zn_binding/1'>Zn(2+)-containing domain </scene> recognizes a conserved CCG triplet at each end of the site through direct contacts with the major groove. A short coiled-coil dimerization element imposes 2-fold symmetry. A segment of extended polypeptide chain links the metal-binding module to the dimerization element and specifies the length of the site. The relatively open structure of the complex would allow another protein to bind coordinately with GAL4. | |||
( | |||
==About this Structure== | ==About this Structure== |