ISDA

Deposition Date 2016-03-23

Release Date 2016-09-14

Last Version Date 2023-09-27

Entry Detail

PDB ID:

5IXS

Keywords:

OXIREDUCTASE/OXIREDUCTASE INHIBITOR

Title:

Lactate Dehydrogenase in complex with hydroxylactam inhibitor compound 9: (6R)-3-[(2-chlorophenyl)sulfanyl]-4-hydroxy-6-(3-hydroxyphenyl)-6-(thiophen-3-yl)-5,6-dihydropyridin-2(1H)-one

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.05 Å

R-Value Free:

0.22

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:L-lactate dehydrogenase A chain
Gene (Uniprot):LDHA
Chain IDs:A, B, C, D
Chain Length:331
Number of Molecules:4
Biological Source:Homo sapiens

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

Ligand Molecules

6EY

EPE

NAI

SO4

TXD

Primary Citation

Cell Active Hydroxylactam Inhibitors of Human Lactate Dehydrogenase with Oral Bioavailability in Mice.

Purkey, H.E, Robarge, K, Chen, J, Chen, Z, Corson, L.B, Ding, C.Z, DiPasquale, A.G, Dragovich, P.S, Eigenbrot, C, Evangelista, M, Fauber, B.P, Gao, Z, Ge, H, Hitz, A, Ho, Q, Labadie, S.S, Lai, K.W, Liu, W, Liu, Y, Li, C, Ma, S, Malek, S, O'Brien, T, Pang, J, Peterson, D, Salphati, L, Sideris, S, Ultsch, M, Wei, B, Yen, I, Yue, Q, Zhang, H, Zhou, A.Show

Acs Med.Chem.Lett. 7 896 901 (2016)

PMID: 27774125 DOI: 10.1021/acsmedchemlett.6b00190

Abstact

A series of trisubstituted hydroxylactams was identified as potent enzymatic and cellular inhibitors of human lactate dehydrogenase A. Utilizing structure-based design and physical property optimization, multiple inhibitors were discovered with <10 μM lactate IC50 in a MiaPaca2 cell line. Optimization of the series led to 29, a potent cell active molecule (MiaPaca2 IC50 = 0.67 μM) that also possessed good exposure when dosed orally to mice.

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Primary Citation of related structures