ISDA

Deposition Date 2017-03-03

Release Date 2017-06-07

Last Version Date 2023-11-22

Entry Detail

PDB ID:

5X8W

Keywords:

TRANSCRIPTION/INHIBITOR

Title:

Crystal Structure of the mutant Human ROR gamma Ligand Binding Domain.

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.30 Å

R-Value Free:

0.22

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

P 41 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Nuclear receptor ROR-gamma
Mutations:K469A,R473A
Chain IDs:A
Chain Length:258
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:G1RH57 Pfam ID:PF00104

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Nuclear receptor coactivator 1
Gene (Uniprot):NCOA1
Chain IDs:B
Chain Length:15
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:Q15788 EC:2.3.1.48

Primary Citation

Ternary complex of human ROR gamma ligand-binding domain, inverse agonist and SMRT peptide shows a unique mechanism of corepressor recruitment

Noguchi, M, Nomura, A, Murase, K, Doi, S, Yamaguchi, K, Hirata, K, Shiozaki, M, Hirashima, S, Kotoku, M, Yamaguchi, T, Katsuda, Y, Steensma, R, Li, X, Tao, H, Tse, B, Fenn, M, Babine, R, Bradley, E, Crowe, P, Thacher, S, Adachi, T, Kamada, M.Show

Genes Cells 22 535 551 (2017)

PMID: 28493531 DOI: 10.1111/gtc.12494

Abstact

Retinoid-related orphan receptor gamma (RORγ) directly controls the differentiation of Th17 cell and the production of interleukin-17, which plays an integral role in autoimmune diseases. To obtain insight into RORγ, we have determined the first crystal structure of a ternary complex containing RORγ ligand-binding domain (LBD) bound with a novel synthetic inhibitor and a repressor peptide, 22-mer peptide from silencing mediator of retinoic acid and thyroid hormone receptor (SMRT). Comparison of a binary complex of nonliganded (apo) RORγ-LBD with a nuclear receptor co-activator (NCoA-1) peptide has shown that our inhibitor displays a unique mechanism different from those caused by natural inhibitor, ursolic acid (UA). The compound unprecedentedly induces indirect disruption of a hydrogen bond between His479 on helix 11 (H11) and Tyr502 on H12, which is crucial for active conformation. This crystallographic study will allow us to develop novel synthetic compounds for autoimmune disease therapy.

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Primary Citation of related structures