1kv6

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X-ray structure of the orphan nuclear receptor ERR3 ligand-binding domain in the constitutively active conformation

Structural highlights

1kv6 is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.7Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

ERR3_HUMAN Orphan receptor that acts as transcription activator in the absence of bound ligand. Binds specifically to an estrogen response element and activates reporter genes controlled by estrogen response elements (By similarity).[1] [2] [3]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The crystal structure of the ligand binding domain (LBD) of the estrogen-related receptor 3 (ERR3) complexed with a steroid receptor coactivator-1 (SRC-1) peptide reveals a transcriptionally active conformation in absence of any ligand. The structure explains why estradiol does not bind ERRs with significant affinity. Docking of the previously reported ERR antagonists, diethylstilbestrol and 4-hydroxytamoxifen, requires structural rearrangements enlarging the ligand binding pocket that can only be accommodated with an antagonist LBD conformation. Mutant receptors in which the ligand binding cavity is filled up by bulkier side chains still interact with SRC-1 in vitro and are transcriptionally active in vivo, but are no longer efficiently inactivated by diethylstilbestrol or 4-hydroxytamoxifen. These results provide structural and functional evidence for ligand-independent transcriptional activation by ERR3.

Structural and functional evidence for ligand-independent transcriptional activation by the estrogen-related receptor 3.,Greschik H, Wurtz JM, Sanglier S, Bourguet W, van Dorsselaer A, Moras D, Renaud JP Mol Cell. 2002 Feb;9(2):303-13. PMID:11864604[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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Citations
36 reviews cite this structure
Transcriptional control of mitochondrial biogenesis and function.
Hock et al. (2009)
35 more
118 other articles
No citations found

See Also

References

  1. ↑ Hentschke M, Susens U, Borgmeyer U. Transcriptional ERRgamma2-mediated activation is regulated by sentrin-specific proteases. Biochem J. 2009 Apr 1;419(1):167-76. doi: 10.1042/BJ20081556. PMID:19067653 doi:10.1042/BJ20081556
  2. ↑ Tremblay AM, Wilson BJ, Yang XJ, Giguere V. Phosphorylation-dependent sumoylation regulates estrogen-related receptor-alpha and -gamma transcriptional activity through a synergy control motif. Mol Endocrinol. 2008 Mar;22(3):570-84. Epub 2007 Dec 6. PMID:18063693 doi:me.2007-0357
  3. ↑ Greschik H, Wurtz JM, Sanglier S, Bourguet W, van Dorsselaer A, Moras D, Renaud JP. Structural and functional evidence for ligand-independent transcriptional activation by the estrogen-related receptor 3. Mol Cell. 2002 Feb;9(2):303-13. PMID:11864604
  4. ↑ Greschik H, Wurtz JM, Sanglier S, Bourguet W, van Dorsselaer A, Moras D, Renaud JP. Structural and functional evidence for ligand-independent transcriptional activation by the estrogen-related receptor 3. Mol Cell. 2002 Feb;9(2):303-13. PMID:11864604

Contents


PDB ID 1kv6

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