ISDA

Deposition Date 2013-07-28

Release Date 2013-12-25

Last Version Date 2023-09-20

Entry Detail

PDB ID:

4LWW

Keywords:

TRANSFERASE/TRANSFERASE INHIBITOR

Title:

Discovery of Potent and Efficacious Cyanoguanidine-containing Nicotinamide Phosphoribosyltransferase (Nampt) Inhibitors

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.64 Å

R-Value Free:

0.17

R-Value Work:

0.15

R-Value Observed:

0.15

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Nicotinamide phosphoribosyltransferase
Gene (Uniprot):NAMPT
Chain IDs:A, B
Chain Length:501
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P43490 Pfam ID:PF18127, PF04095 EC:2.4.2.12

Ligand Molecules

EDO

LWW

PO4

Primary Citation

Discovery of potent and efficacious cyanoguanidine-containing nicotinamide phosphoribosyltransferase (Nampt) inhibitors.

Zheng, X, Baumeister, T, Buckmelter, A.J, Caligiuri, M, Clodfelter, K.H, Han, B, Ho, Y.C, Kley, N, Lin, J, Reynolds, D.J, Sharma, G, Smith, C.C, Wang, Z, Dragovich, P.S, Oh, A, Wang, W, Zak, M, Wang, Y, Yuen, P.W, Bair, K.W.Show

Bioorg.Med.Chem.Lett. 24 337 343 (2014)

PMID: 24279990 DOI: 10.1016/j.bmcl.2013.11.006

Abstact

A co-crystal structure of amide-containing compound (4) in complex with the nicotinamide phosphoribosyltransferase (Nampt) protein and molecular modeling were utilized to design and discover a potent novel cyanoguanidine-containing inhibitor bearing a sulfone moiety (5, Nampt Biochemical IC50=2.5nM, A2780 cell proliferation IC50=9.7nM). Further SAR exploration identified several additional cyanoguanidine-containing compounds with high potency and good microsomal stability. Among these, compound 15 was selected for in vivo profiling and demonstrated good oral exposure in mice. It also exhibited excellent in vivo antitumor efficacy when dosed orally in an A2780 ovarian tumor xenograft model. The co-crystal structure of this compound in complex with the NAMPT protein was also determined.

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Primary Citation of related structures