10LG | pdb_000010lg

Crystal structure of Streptococcus thermophilus SHP pheromone receptor Rgg3 in complex with Rgg3bp13

PDB DOI: https://doi.org/10.2210/pdb10LG/pdb

Classification: DNA BINDING PROTEIN
Organism(s): Streptococcus thermophilus LMG 18311, synthetic construct
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2026-01-26 Released: 2026-02-04
Deposition Author(s): Guarnaccia, A.M., Neiditch, M.B.
Funding Organization(s): Not funded

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.87 Å
R-Value Free:
0.218 (Depositor), 0.218 (DCC)
R-Value Work:
0.183 (Depositor), 0.183 (DCC)
R-Value Observed:
0.186 (Depositor)

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

Crystal structure of Streptococcus thermophilus SHP pheromone receptor Rgg3 in complex with Rgg3bp13

Guarnaccia, A.M., Neiditch, M.B.

To be published.

Macromolecule Content

Total Structure Weight: 36.06 kDa
Atom Count: 2,533
Modeled Residue Count: 286
Deposited Residue Count: 301
Unique protein chains: 2

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Positive transcriptional regulator MutR family	A	284	Streptococcus thermophilus LMG 18311	Mutation(s): 0 Gene Names: stu1044
UniProt
Find proteins for Q5M4D0 (Streptococcus thermophilus (strain ATCC BAA-250 / LMG 18311)) Explore Q5M4D0 Go to UniProtKB: Q5M4D0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q5M4D0
Sequence Annotations Expand
Reference Sequence

Find similar proteins by: Sequence | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Rgg3bp13 peptide	B	17	synthetic construct	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
TRS Query on TRS Download Ideal Coordinates CCD File SDF format, chain I [auth A] MOL2 format, chain I [auth A] mmCIF format, chain I [auth A]	I [auth A]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C₄ H₁₂ N O₃ LENZDBCJOHFCAS-UHFFFAOYSA-O		Interactions Focus chain I [auth A] Interactions & Density Focus chain I [auth A]
SO4 Query on SO4 Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain F [auth A] SDF format, chain G [auth A] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] mmCIF format, chain C [auth A] mmCIF format, chain D [auth A] mmCIF format, chain E [auth A] mmCIF format, chain F [auth A] mmCIF format, chain G [auth A]	C [auth A], D [auth A], E [auth A], F [auth A], G [auth A]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Interactions & Density Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A]
GOL Query on GOL Download Ideal Coordinates CCD File SDF format, chain H [auth A] MOL2 format, chain H [auth A] mmCIF format, chain H [auth A]	H [auth A]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain H [auth A] Interactions & Density Focus chain H [auth A]