ISDA

Entry Detail

PDB ID:

2LBD

Keywords:

NUCLEAR RECEPTOR

Title:

LIGAND-BINDING DOMAIN OF THE HUMAN RETINOIC ACID RECEPTOR GAMMA BOUND TO ALL-TRANS RETINOIC ACID

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Escherichia coli BL21(DE3)

PDB Version:

Deposition Date:

1997-08-19

Release Date:

1997-11-12

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.06 Å

R-Value Free:

0.31

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)
Description:RETINOIC ACID RECEPTOR GAMMA
Chain IDs:A
Chain Length:267
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P13631 Pfam ID:PF00104

Ligand Molecules

REA

Primary Citation

Crystal structure of the RAR-gamma ligand-binding domain bound to all-trans retinoic acid.

Renaud, J.P, Rochel, N, Ruff, M, Vivat, V, Chambon, P, Gronemeyer, H, Moras, D, Bourguet, W, Ruff, M, Chambon, P, Gronemeyer, H, Moras, D.Show

Nature 378 681 689 (1995)

PMID: 7501014 DOI: 10.1038/378681a0

Abstact

The 2.0-A crystal structure of the ligand-binding domain (LBD) of the human retinoic acid receptor (RAR)-gamma bound to all-trans retinoic acid reveals the ligand-binding interactions and suggests an electrostatic guidance mechanism. The overall fold is similar to that of the human RXR-alpha apo-LBD, except for the carboxy-terminal part which folds back towards the LBD core, contributing to the hydrophobic ligand pocket and 'sealing' its entry site. We propose a 'mouse trap' mechanism whereby a ligand-induced conformational transition repositions the amphipathic alpha-helix of the AF-2 activating domain and forms a transcriptionally active receptor.

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Protein

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Primary Citation of related structures