8FG8

Catalytic domain of GtfB in complex with inhibitor 2-[(2,4,5-Trihydroxyphenyl)methylidene]-1-benzofuran-3-one

PDB DOI: https://doi.org/10.2210/pdb8FG8/pdb

Classification: TRANSFERASE/INHIBITOR
Organism(s): Streptococcus mutans
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2022-12-12 Released: 2023-06-14
Deposition Author(s): Schormann, N., Deivanayagam, C., Velu, S.
Funding Organization(s): National Institutes of Health/National Institute of Dental and Craniofacial Research (NIH/NIDCR)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.35 Å
R-Value Free: 0.233
R-Value Work: 0.205
R-Value Observed: 0.207

wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.2 of the entry. See complete history.

Literature

Hydrogel-Encapsulated Biofilm Inhibitors Abrogate the Cariogenic Activity of Streptococcus mutans .

Ahirwar, P., Kozlovskaya, V., Nijampatnam, B., Rojas, E.M., Pukkanasut, P., Inman, D., Dolmat, M., Law, A.C., Schormann, N., Deivanayagam, C., Harber, G.J., Michalek, S.M., Wu, H., Kharlampieva, E., Velu, S.E.

(2023) J Med Chem 66: 7909-7925

PubMed: 37285134 Search on PubMed
DOI: https://doi.org/10.1021/acs.jmedchem.3c00272
Primary Citation of Related Structures:
8FG8

PubMed Abstract:
We designed and synthesized analogues of a previously identified biofilm inhibitor IIIC5 to improve solubility, retain inhibitory activities, and to facilitate encapsulation into pH-responsive hydrogel microparticles. The optimized lead compound HA5 showed improved solubility of 120.09 μg/mL, inhibited Streptococcus mutans biofilm with an IC ₅₀ value of 6.42 μM, and did not affect the growth of oral commensal species up to a 15-fold higher concentration. The cocrystal structure of HA5 with GtfB catalytic domain determined at 2.35 Å resolution revealed its active site interactions. The ability of HA5 to inhibit S. mutans Gtfs and to reduce glucan production has been demonstrated. The hydrogel-encapsulated biofilm inhibitor ( HEBI ), generated by encapsulating HA5 in hydrogel, selectively inhibited S. mutans biofilms like HA5 . Treatment of S. mutans -infected rats with HA5 or HEBI resulted in a significant reduction in buccal, sulcal, and proximal dental caries compared to untreated, infected rats.

Organizational Affiliation

Department of Integrative Biomedical and Diagnostic Sciences, Oregon Health and Science University, Portland, Oregon 97239, United States.

Macromolecule Content

Total Structure Weight: 198.41 kDa
Atom Count: 13,759
Modelled Residue Count: 1,659
Deposited Residue Count: 1,738
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glucosyltransferase-I	A, B	869	Streptococcus mutans	Mutation(s): 0 Gene Names: gtfB, SMU_1004 EC: 2.4.1.5
UniProt
Find proteins for P08987 (Streptococcus mutans serotype c (strain ATCC 700610 / UA159)) Explore P08987 Go to UniProtKB: P08987
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P08987
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
XV5 (Subject of Investigation/LOI) Query on XV5 Download Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain Q [auth B] MOL2 format, chain D [auth A] MOL2 format, chain Q [auth B]	D [auth A], Q [auth B]	(2Z)-2-[(2,4,5-trihydroxyphenyl)methylidene]-1-benzofuran-3(2H)-one C₁₅ H₁₀ O₅ VVYKSKJYFAOSBP-UHFFFAOYSA-N		Interactions Focus chain D [auth A] Focus chain Q [auth B] Interactions & Density Focus chain D [auth A] Focus chain Q [auth B]
BTB (Subject of Investigation/LOI) Query on BTB Download Ideal Coordinates CCD File SDF format, chain E [auth A] SDF format, chain R [auth B] MOL2 format, chain E [auth A] MOL2 format, chain R [auth B]	E [auth A], R [auth B]	2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C₈ H₁₉ N O₅ OWMVSZAMULFTJU-UHFFFAOYSA-N		Interactions Focus chain E [auth A] Focus chain R [auth B] Interactions & Density Focus chain E [auth A] Focus chain R [auth B]
SO4 (Subject of Investigation/LOI) Query on SO4 Download Ideal Coordinates CCD File SDF format, chain AA [auth B] SDF format, chain BA [auth B] SDF format, chain CA [auth B] SDF format, chain DA [auth B] SDF format, chain EA [auth B] SDF format, chain F [auth A] SDF format, chain FA [auth B] SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain I [auth A] SDF format, chain J [auth A] SDF format, chain K [auth A] SDF format, chain L [auth A] SDF format, chain M [auth A] SDF format, chain N [auth A] SDF format, chain O [auth A] SDF format, chain S [auth B] SDF format, chain T [auth B] SDF format, chain U [auth B] SDF format, chain V [auth B] SDF format, chain W [auth B] SDF format, chain X [auth B] SDF format, chain Y [auth B] SDF format, chain Z [auth B] MOL2 format, chain AA [auth B] MOL2 format, chain BA [auth B] MOL2 format, chain CA [auth B] MOL2 format, chain DA [auth B] MOL2 format, chain EA [auth B] MOL2 format, chain F [auth A] MOL2 format, chain FA [auth B] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain I [auth A] MOL2 format, chain J [auth A] MOL2 format, chain K [auth A] MOL2 format, chain L [auth A] MOL2 format, chain M [auth A] MOL2 format, chain N [auth A] MOL2 format, chain O [auth A] MOL2 format, chain S [auth B] MOL2 format, chain T [auth B] MOL2 format, chain U [auth B] MOL2 format, chain V [auth B] MOL2 format, chain W [auth B] MOL2 format, chain X [auth B] MOL2 format, chain Y [auth B] MOL2 format, chain Z [auth B]	AA [auth B] BA [auth B] CA [auth B] DA [auth B] EA [auth B] AA [auth B], BA [auth B], CA [auth B], DA [auth B], EA [auth B], F [auth A], FA [auth B], G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A], M [auth A], N [auth A], O [auth A], S [auth B], T [auth B], U [auth B], V [auth B], W [auth B], X [auth B], Y [auth B], Z [auth B]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain AA [auth B] Focus chain BA [auth B] Focus chain CA [auth B] Focus chain DA [auth B] Focus chain EA [auth B] Focus chain F [auth A] Focus chain FA [auth B] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A] Focus chain S [auth B] Focus chain T [auth B] Focus chain U [auth B] Focus chain V [auth B] Focus chain W [auth B] Focus chain X [auth B] Focus chain Y [auth B] Focus chain Z [auth B] Interactions & Density Focus chain AA [auth B] Focus chain BA [auth B] Focus chain CA [auth B] Focus chain DA [auth B] Focus chain EA [auth B] Focus chain F [auth A] Focus chain FA [auth B] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A] Focus chain S [auth B] Focus chain T [auth B] Focus chain U [auth B] Focus chain V [auth B] Focus chain W [auth B] Focus chain X [auth B] Focus chain Y [auth B] Focus chain Z [auth B]
CA (Subject of Investigation/LOI) Query on CA Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain GA [auth B] SDF format, chain P [auth B] MOL2 format, chain C [auth A] MOL2 format, chain GA [auth B] MOL2 format, chain P [auth B]	C [auth A], GA [auth B], P [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain GA [auth B] Focus chain P [auth B] Interactions & Density Focus chain C [auth A] Focus chain GA [auth B] Focus chain P [auth B]