ISDA: 6SBU

Deposition Date 2019-07-22

Release Date 2020-06-10

Last Version Date 2024-01-24

Entry Detail

PDB ID:

6SBU

Keywords:

OXIDOREDUCTASE

Title:

X-ray Structure of Human LDHA with an Allosteric Inhibitor (Compound 3)

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.91 Å

R-Value Free:

0.24

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 21 21 21

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:L-lactate dehydrogenase A chain
Gene (Uniprot):LDHA
Chain IDs:A, B, C, D, E, F, G, H
Chain Length:332
Number of Molecules:8
Biological Source:Homo sapiens

UniProt ID:P00338 Pfam ID:PF00056, PF02866 EC:1.1.1.27

Ligand Molecules

L5N

NAI

Primary Citation

Structural Evidence for Isoform-Selective Allosteric Inhibition of Lactate Dehydrogenase A.

Friberg, A, Rehwinkel, H, Nguyen, D, Putter, V, Quanz, M, Weiske, J, Eberspacher, U, Heisler, I, Langer, G.Show

Acs Omega 5 13034 13041 (2020)

PMID: 32548488 DOI: 10.1021/acsomega.0c00715

Abstact

Lactate dehydrogenase A (LDHA) is frequently overexpressed in tumors, thereby sustaining high glycolysis rates, tumor growth, and chemoresistance. High-throughput screening resulted in the identification of phthalimide and dibenzofuran derivatives as novel lactate dehydrogenase inhibitors, selectively inhibiting the activity of the LDHA isoenzyme. Cocrystallization experiments confirmed target engagement in addition to demonstrating binding to a novel allosteric binding site present in all four LDHA subunits of the LDH5 homotetramer.

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Primary Citation of related structures