6A4L

Experimental Data Snapshot

wwPDB Validation 3D Report Full Report

This is version 1.1 of the entry. See complete history.

Literature

(2019) FEBS Open Bio 9: 1713-1725

PubMed Abstract:
Transcriptional regulator proteins are closely involved in essential survival strategies in bacteria. AcrR is a one-component allosteric repressor of the genes associated with lipid transport and antibiotic resistance. When fatty acid ligands bind to the C-terminal ligand-binding cavity of AcrR, a conformational change in the N-terminal operator-binding region of AcrR is triggered, which releases the repressed DNA and initiates transcription. This paper focuses on the structural transition mechanism of AcrR of Mycobacterium tuberculosis upon DNA and ligand binding. AcrR loses its structural integrity upon ligand-mediated structural alteration and bends toward the promoter DNA in a more compact form, initiating a rotational motion. Our functional characterization of AcrR and description of the ligand- and DNA-recognition mechanism may facilitate the discovery of new therapies for tuberculosis.

Organizational Affiliation

The Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea.

Macromolecule Content

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TetR family transcriptional regulator	A, B	230	Mycobacterium tuberculosis	Mutation(s): 0 Gene Names: acrR, ERS007657_03305, ERS007663_01106, ERS007670_02655, ERS007672_02023, ERS007679_02277, ERS007681_02293, ERS007688_01622, ERS007703_02625, ERS007722_01260... acrR, ERS007657_03305, ERS007663_01106, ERS007670_02655, ERS007672_02023, ERS007679_02277, ERS007681_02293, ERS007688_01622, ERS007703_02625, ERS007722_01260, ERS023446_03575, ERS027646_00827, ERS027651_03158, ERS027653_04028, ERS027654_02941, ERS027659_02538, ERS027661_02360, ERS031537_01877, ERS124361_02153, SAMEA2682864_00974, SAMEA2683035_01767
UniProt
Find proteins for O07229 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Explore O07229 Go to UniProtKB: O07229
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	O07229
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
SO4 Query on SO4 Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain G [auth B] SDF format, chain H [auth B] SDF format, chain I [auth B] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain G [auth B] MOL2 format, chain H [auth B] MOL2 format, chain I [auth B]	C [auth A], D [auth A], G [auth B], H [auth B], I [auth B]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain C [auth A] Focus chain D [auth A] Focus chain G [auth B] Focus chain H [auth B] Focus chain I [auth B] Interactions & Density Focus chain C [auth A] Focus chain D [auth A] Focus chain G [auth B] Focus chain H [auth B] Focus chain I [auth B]
NA Query on NA Download Ideal Coordinates CCD File SDF format, chain E [auth A] SDF format, chain F [auth A] SDF format, chain J [auth B] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] MOL2 format, chain J [auth B]	E [auth A], F [auth A], J [auth B]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N		Interactions Focus chain E [auth A] Focus chain F [auth A] Focus chain J [auth B] Interactions & Density Focus chain E [auth A] Focus chain F [auth A] Focus chain J [auth B]