5ZD4 image
Deposition Date 2018-02-22
Release Date 2018-08-29
Last Version Date 2023-11-22
Entry Detail
PDB ID:
5ZD4
Keywords:
TRANSCRIPTION
Title:
Crystal structure of MBP-fused BIL1/BZR1 in complex with double-stranded DNA
Biological Source:
Source Organism:
Escherichia coli O157:H7 (Taxon ID: 83334)
Arabidopsis thaliana (Taxon ID: 3702)
synthetic construct (Taxon ID: 32630)
Host Organism:
Escherichia coli BL21(DE3)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.17 Å
R-Value Free:
0.24
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
P 1 21 1
5ZD4 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Maltose-binding periplasmic protein,Protein BRASSINAZOLE-RESISTANT 1
Gene (Uniprot):malE, BZR1
Mutations:D108A,K109A,E198A,N199A,K265A,E385A,K388A,D389A
Chain IDs:A (auth: C), B (auth: D), E (auth: A), F (auth: B)
Chain Length:453
Number of Molecules:4
Biological Source:Escherichia coli O157:H7, Arabidopsis thaliana
UniProt ID:P0AEY0,Q8S307 Pfam ID:PF01547, PF05687 EC:3.5.4.38
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(*TP*TP*CP*AP*CP*AP*CP*GP*TP*GP*TP*GP*AP*AP*A)-3')
Chain IDs:C (auth: G), D (auth: H), G (auth: E), H (auth: F)
Chain Length:15
Number of Molecules:4
Biological Source:synthetic construct
Ligand Molecules
EDO
Peptide-like Molecules
PRD_900001
Primary Citation
Structural basis for brassinosteroid response by BIL1/BZR1.
Nat Plants 4 771 776 (2018)
PMID: 30287951 DOI: 10.1038/s41477-018-0255-1

Abstact

BRZ-INSENSITIVE-LONG HYPOCOTYL 1 (BIL1)/BRASSINAZOLE-RESISTANT 1 (BZR1) is a master transcription factor of brassinosteroid (BR) signalling. The varieties of nucleobase recognition of the NN-BRRE-core motif (NNCGTG), one of variant G-box motifs, distinguish BIL1/BZR1 from basic helix-loop-helix transcription factors, underlying the specific regulation of BR-responsive genes. Here, we show the non-canonical bHLH dimer formation of BIL1/BZR1 to optimize the interaction network with DNA and the orientation of a key residue for NN-BRRE-core motif recognition.

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Disease

Primary Citation of related structures
5ZD4