1xq3: Difference between revisions
From Proteopedia
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| Line 4: | Line 4: | ||
==Overview== | ==Overview== | ||
The androgen receptor (AR) is required for male sex development and | The androgen receptor (AR) is required for male sex development and contributes to prostate cancer cell survival. In contrast to other nuclear receptors that bind the LXXLL motifs of coactivators, the AR ligand binding domain is preferentially engaged in an interdomain interaction with the AR FXXLF motif. Reported here are crystal structures of the ligand-activated AR ligand binding domain with and without bound FXXLF and LXXLL peptides. Key residues that establish motif binding specificity are identified through comparative structure-function and mutagenesis studies. A mechanism in prostate cancer is suggested by a functional AR mutation at a specificity-determining residue that recovers coactivator LXXLL motif binding. An activation function transition hypothesis is proposed in which an evolutionary decline in LXXLL motif binding parallels expansion and functional dominance of the NH(2)-terminal transactivation domain in the steroid receptor subfamily. | ||
==Disease== | ==Disease== | ||
| Line 18: | Line 18: | ||
[[Category: An, G.]] | [[Category: An, G.]] | ||
[[Category: He, B.]] | [[Category: He, B.]] | ||
[[Category: Hnat, A | [[Category: Hnat, A T.]] | ||
[[Category: Jr., R | [[Category: Jr., R T.Gampe.]] | ||
[[Category: Kalman, R | [[Category: Kalman, R I.]] | ||
[[Category: Kole, A | [[Category: Kole, A J.]] | ||
[[Category: Minges, J | [[Category: Minges, J T.]] | ||
[[Category: Stanley, T | [[Category: Stanley, T B.]] | ||
[[Category: Stewart, E | [[Category: Stewart, E L.]] | ||
[[Category: Wilson, E | [[Category: Wilson, E M.]] | ||
[[Category: R18]] | [[Category: R18]] | ||
[[Category: crystal structure; human androgen receptor ligand binding domain; r1881]] | [[Category: crystal structure; human androgen receptor ligand binding domain; r1881]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:57:27 2008'' | ||