|
|
| Line 1: |
Line 1: |
| [[Image:1g2n.gif|left|200px]] | | {{Seed}} |
| | [[Image:1g2n.png|left|200px]] |
|
| |
|
| <!-- | | <!-- |
| Line 9: |
Line 10: |
| {{STRUCTURE_1g2n| PDB=1g2n | SCENE= }} | | {{STRUCTURE_1g2n| PDB=1g2n | SCENE= }} |
|
| |
|
| '''CRYSTAL STRUCTURE OF THE LIGAND BINDING DOMAIN OF THE ULTRASPIRACLE PROTEIN USP, THE ORTHOLOG OF RXRS IN INSECTS'''
| | ===CRYSTAL STRUCTURE OF THE LIGAND BINDING DOMAIN OF THE ULTRASPIRACLE PROTEIN USP, THE ORTHOLOG OF RXRS IN INSECTS=== |
|
| |
|
|
| |
|
| ==Overview==
| | <!-- |
| The major postembryonic developmental events happening in insect life, including molting and metamorphosis, are regulated and coordinated temporally by pulses of ecdysone. The biological activity of this steroid hormone is mediated by two nuclear receptors: the ecdysone receptor (EcR) and the Ultraspiracle protein (USP). The crystal structure of the ligand-binding domain from the lepidopteran Heliothis virescens USP reported here shows that the loop connecting helices H1 and H3 precludes the canonical agonist conformation. The key residues that stabilize this unique loop conformation are strictly conserved within the lepidopteran USP family. The presence of an unexpected bound ligand that drives an unusual antagonist conformation confirms the induced-fit mechanism accompanying the ligand binding. The ligand-binding pocket exhibits a retinoid X receptor-like anchoring part near a conserved arginine, which could interact with a USP ligand functional group. The structure of this receptor provides the template for designing inhibitors, which could be utilized as a novel type of environmentally safe insecticides. | | The line below this paragraph, {{ABSTRACT_PUBMED_11053444}}, adds the Publication Abstract to the page |
| | (as it appears on PubMed at http://www.pubmed.gov), where 11053444 is the PubMed ID number. |
| | --> |
| | {{ABSTRACT_PUBMED_11053444}} |
|
| |
|
| ==About this Structure== | | ==About this Structure== |
| Line 31: |
Line 35: |
| [[Category: Structural genomic]] | | [[Category: Structural genomic]] |
| [[Category: Structural proteomics in europe]] | | [[Category: Structural proteomics in europe]] |
| ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Apr 13 08:06:36 2008'' | | |
| | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 04:19:13 2008'' |
