4AJL

rat LDHA in complex with 3-(ethylcarbamoylamino)-N-(2-methyl-1,3- benzothiazol-6-yl)propanamide

PDB DOI: https://doi.org/10.2210/pdb4AJL/pdb

Classification: OXIDOREDUCTASE/INHIBITOR
Organism(s): Rattus norvegicus
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2012-02-16 Released: 2012-03-21
Deposition Author(s): Tucker, J.A., Brassington, C., Hassall, G., Vogtherr, M., Ward, R., Tart, J., Davies, G., Addie, M., Ferguson, A.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.77 Å
R-Value Free: 0.183
R-Value Work: 0.142
R-Value Observed: 0.144

Starting Model: other
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.3 of the entry. See complete history.

Literature

The Design and Synthesis of Novel Lactate Dehydrogenase a Inhibitors by Fragment-Based Lead Generation

Ward, R., Brassington, C., Breeze, A.L., Caputo, A., Critchlow, S., Davies, G., Goodwin, L., Hassall, G., Greenwood, R., Holdgate, G., Mrosek, M., Norman, R.A., Pearson, S., Tart, J., Tucker, J.A., Vogtherr, M., Whittaker, D., Wingfield, J., Winter, J., Hudson, K.

(2012) J Med Chem 55: 3285

PubMed: 22417091 Search on PubMed
DOI: https://doi.org/10.1021/jm201734r
Primary Citation of Related Structures:
4AJ1, 4AJ2, 4AJ4, 4AJE, 4AJH, 4AJI, 4AJJ, 4AJK, 4AJL, 4AJN, 4AJO, 4AJP, 4AL4

PubMed Abstract:
Lactate dehydrogenase A (LDHA) catalyzes the conversion of pyruvate to lactate, utilizing NADH as a cofactor. It has been identified as a potential therapeutic target in the area of cancer metabolism. In this manuscript we report our progress using fragment-based lead generation (FBLG), assisted by X-ray crystallography to develop small molecule LDHA inhibitors. Fragment hits were identified through NMR and SPR screening and optimized into lead compounds with nanomolar binding affinities via fragment linking. Also reported is their modification into cellular active compounds suitable for target validation work.

Organizational Affiliation

Oncology and Discovery Sciences iMEDs, AstraZeneca, Mereside, Alderley Park, Macclesfield, Cheshire, SK10 4TG, UK. richard.a.ward@astrazeneca.com

Macromolecule Content

Total Structure Weight: 148.13 kDa
Atom Count: 11,499
Modelled Residue Count: 1,316
Deposited Residue Count: 1,324
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
L-LACTATE DEHYDROGENASE A CHAIN	A, B, C, D	331	Rattus norvegicus	Mutation(s): 0 EC: 1.1.1.27
UniProt
Find proteins for P04642 (Rattus norvegicus) Explore P04642 Go to UniProtKB: P04642
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P04642
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
88W Query on 88W Download Ideal Coordinates CCD File SDF format, chain F [auth A] SDF format, chain J [auth B] SDF format, chain Q [auth C] SDF format, chain U [auth D] MOL2 format, chain F [auth A] MOL2 format, chain J [auth B] MOL2 format, chain Q [auth C] MOL2 format, chain U [auth D] mmCIF format, chain F [auth A] mmCIF format, chain J [auth B] mmCIF format, chain Q [auth C] mmCIF format, chain U [auth D]	F [auth A], J [auth B], Q [auth C], U [auth D]	N~3~-(ethylcarbamoyl)-N-(2-methyl-1,3-benzothiazol-6-yl)-beta-alaninamide C₁₄ H₁₈ N₄ O₂ S FBTWWPKAGBUCIB-UHFFFAOYSA-N		Interactions Focus chain F [auth A] Focus chain J [auth B] Focus chain Q [auth C] Focus chain U [auth D] Interactions & Density Focus chain F [auth A] Focus chain J [auth B] Focus chain Q [auth C] Focus chain U [auth D]
MLI Query on MLI Download Ideal Coordinates CCD File SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain K [auth B] SDF format, chain L [auth B] SDF format, chain R [auth C] SDF format, chain S [auth C] SDF format, chain V [auth D] SDF format, chain W [auth D] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain K [auth B] MOL2 format, chain L [auth B] MOL2 format, chain R [auth C] MOL2 format, chain S [auth C] MOL2 format, chain V [auth D] MOL2 format, chain W [auth D] mmCIF format, chain G [auth A] mmCIF format, chain H [auth A] mmCIF format, chain K [auth B] mmCIF format, chain L [auth B] mmCIF format, chain R [auth C] mmCIF format, chain S [auth C] mmCIF format, chain V [auth D] mmCIF format, chain W [auth D]	G [auth A] H [auth A] K [auth B] L [auth B] R [auth C] G [auth A], H [auth A], K [auth B], L [auth B], R [auth C], S [auth C], V [auth D], W [auth D]	MALONATE ION C₃ H₂ O₄ OFOBLEOULBTSOW-UHFFFAOYSA-L		Interactions Focus chain G [auth A] Focus chain H [auth A] Focus chain K [auth B] Focus chain L [auth B] Focus chain R [auth C] Focus chain S [auth C] Focus chain V [auth D] Focus chain W [auth D] Interactions & Density Focus chain G [auth A] Focus chain H [auth A] Focus chain K [auth B] Focus chain L [auth B] Focus chain R [auth C] Focus chain S [auth C] Focus chain V [auth D] Focus chain W [auth D]
GOL Query on GOL Download Ideal Coordinates CCD File SDF format, chain E [auth A] SDF format, chain M [auth C] SDF format, chain O [auth C] SDF format, chain P [auth C] SDF format, chain T [auth D] SDF format, chain I [auth B] MOL2 format, chain E [auth A] MOL2 format, chain M [auth C] MOL2 format, chain O [auth C] MOL2 format, chain P [auth C] MOL2 format, chain T [auth D] MOL2 format, chain I [auth B] mmCIF format, chain E [auth A] mmCIF format, chain M [auth C] mmCIF format, chain O [auth C] mmCIF format, chain P [auth C] mmCIF format, chain T [auth D] mmCIF format, chain I [auth B]	E [auth A] I [auth B] M [auth C] O [auth C] P [auth C] E [auth A], I [auth B], M [auth C], O [auth C], P [auth C], T [auth D]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain E [auth A] Focus chain I [auth B] Focus chain M [auth C] Focus chain O [auth C] Focus chain P [auth C] Focus chain T [auth D] Interactions & Density Focus chain E [auth A] Focus chain I [auth B] Focus chain M [auth C] Focus chain O [auth C] Focus chain P [auth C] Focus chain T [auth D]
DMS Query on DMS Download Ideal Coordinates CCD File SDF format, chain N [auth C] MOL2 format, chain N [auth C] mmCIF format, chain N [auth C]	N [auth C]	DIMETHYL SULFOXIDE C₂ H₆ O S IAZDPXIOMUYVGZ-UHFFFAOYSA-N		Interactions Focus chain N [auth C] Interactions & Density Focus chain N [auth C]

Binding Affinity Annotations
ID	Source	Binding Affinity
88W	PDBBind: 4AJL	Kd: 1.60e+5 (nM) from 1 assay(s)
	BindingDB: 4AJL	Kd: 1.60e+5 (nM) from 1 assay(s)
	BindingDB: 4AJL	IC50: 5.00e+5 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.77 Å
R-Value Free: 0.183
R-Value Work: 0.142
R-Value Observed: 0.144
Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.289	α = 90
b = 81.842	β = 96.19
c = 129.023	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
XDS	data reduction
SCALA	data scaling
AMoRE	phasing

Structure Validation

View Full Validation Report

Ligand Structure Quality Assessment

Entry History

Deposition Data

Released Date: 2012-03-21

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2012-03-21
Type: Initial release
Version 1.1: 2012-04-25
Changes: Other
Version 1.2: 2018-04-04
Changes: Data collection
Version 1.3: 2024-05-01
Changes: Data collection, Database references, Derived calculations, Other, Refinement description