1bsx
From Proteopedia
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|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1bsx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bsx OCA], [http://www.ebi.ac.uk/pdbsum/1bsx PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1bsx RCSB]</span> | ||
}} | }} | ||
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==Overview== | ==Overview== | ||
Combinatorial regulation of transcription implies flexible yet precise assembly of multiprotein regulatory complexes in response to signals. Biochemical and crystallographic analyses revealed that hormone binding leads to the formation of a hydrophobic groove within the ligand binding domain (LBD) of the thyroid hormone receptor that interacts with an LxxLL motif-containing alpha-helix from GRIP1, a coactivator. Residues immediately adjacent to the motif modulate the affinity of the interaction; the motif and the adjacent sequences are employed to different extents in binding to different receptors. Such interactions of amphipathic alpha-helices with hydrophobic grooves define protein interfaces in other regulatory complexes as well. We suggest that these common structural elements impart flexibility to combinatorial regulation, whereas side chains at the interface impart specificity. | Combinatorial regulation of transcription implies flexible yet precise assembly of multiprotein regulatory complexes in response to signals. Biochemical and crystallographic analyses revealed that hormone binding leads to the formation of a hydrophobic groove within the ligand binding domain (LBD) of the thyroid hormone receptor that interacts with an LxxLL motif-containing alpha-helix from GRIP1, a coactivator. Residues immediately adjacent to the motif modulate the affinity of the interaction; the motif and the adjacent sequences are employed to different extents in binding to different receptors. Such interactions of amphipathic alpha-helices with hydrophobic grooves define protein interfaces in other regulatory complexes as well. We suggest that these common structural elements impart flexibility to combinatorial regulation, whereas side chains at the interface impart specificity. | ||
| - | |||
| - | ==Disease== | ||
| - | Known diseases associated with this structure: Thyroid hormone resistance OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=190160 190160]], Thyroid hormone resistance, autosomal recessive OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=190160 190160]] | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: Wagner, R L.]] | [[Category: Wagner, R L.]] | ||
[[Category: Yamamoto, K R.]] | [[Category: Yamamoto, K R.]] | ||
| - | [[Category: T3]] | ||
[[Category: coactivator]] | [[Category: coactivator]] | ||
[[Category: grip1]] | [[Category: grip1]] | ||
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[[Category: specificity interaction site]] | [[Category: specificity interaction site]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:07:37 2008'' |
Revision as of 16:07, 30 March 2008
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| , resolution 3.7Å | |||||||
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| Sites: | and | ||||||
| Ligands: | |||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE AND SPECIFICITY OF NUCLEAR RECEPTOR-COACTIVATOR INTERACTIONS
Overview
Combinatorial regulation of transcription implies flexible yet precise assembly of multiprotein regulatory complexes in response to signals. Biochemical and crystallographic analyses revealed that hormone binding leads to the formation of a hydrophobic groove within the ligand binding domain (LBD) of the thyroid hormone receptor that interacts with an LxxLL motif-containing alpha-helix from GRIP1, a coactivator. Residues immediately adjacent to the motif modulate the affinity of the interaction; the motif and the adjacent sequences are employed to different extents in binding to different receptors. Such interactions of amphipathic alpha-helices with hydrophobic grooves define protein interfaces in other regulatory complexes as well. We suggest that these common structural elements impart flexibility to combinatorial regulation, whereas side chains at the interface impart specificity.
About this Structure
1BSX is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structure and specificity of nuclear receptor-coactivator interactions., Darimont BD, Wagner RL, Apriletti JW, Stallcup MR, Kushner PJ, Baxter JD, Fletterick RJ, Yamamoto KR, Genes Dev. 1998 Nov 1;12(21):3343-56. PMID:9808622
Page seeded by OCA on Sun Mar 30 19:07:37 2008
