ISDA

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, Arabidopsis thaliana, synthetic construct

Host Organism:

Escherichia coli BL21(DE3)

PDB Version:

Deposition Date:

2018-02-22

Release Date:

2018-08-29

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

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Maltose-binding periplasmic protein,Protein BRASSINAZOLE-RESISTANT 1
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 Pfam ID:PF01547 EC:3.5.4.38

Polymer Type:polydeoxyribonucleotide
Description: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.

Nosaki, S, Miyakawa, T, Xu, Y, Nakamura, A, Hirabayashi, K, Asami, T, Nakano, T, Tanokura, M.Show

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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Primary Citation of related structures