ISDA

Entry Detail

PDB ID:

7NH6

Keywords:

Title:

Crystal structure of human carbonic anhydrase II with 3-(3-((1-(2-(hydroxymethyl)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl)-1H-1,2,3-triazol-4-yl)methyl)ureido)benzenesulfonamide

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2021-02-10

Release Date:

2022-02-23

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.28 Å

R-Value Free:

0.17

R-Value Work:

0.15

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Carbonic anhydrase 2
Chain IDs:A (auth: AAA)
Chain Length:260
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P00918 Pfam ID:PF00194 EC:4.2.1.1

Ligand Molecules

GOL

UDE

Primary Citation

Mechanisms of the Antiproliferative and Antitumor Activity of Novel Telomerase-Carbonic Anhydrase Dual-Hybrid Inhibitors.

Plyasova, A.A, Berrino, E, Khan, I.I, Veselovsky, A.V, Pokrovsky, V.S, Angeli, A, Ferraroni, M, Supuran, C.T, Pokrovskaya, M.V, Alexandrova, S.S, Gladilina, Y.A, Sokolov, N.N, Hilal, A, Carta, F, Zhdanov, D.D.Show

J.Med.Chem. 64 11432 11444 (2021)

PMID: 34283610 DOI: 10.1021/acs.jmedchem.1c00756

Abstact

Human (h) telomerase (TL; EC 2.7.7.49) plays a key role in sustaining cancer cells by means of elongating telomeric repeats at the 3' ends of chromosomes. Since TL-inhibitor (TI) stand-alone cancer therapy has been proven to be remarkably challenging, a polypharmacological approach represents a valid alternative. Here we consider a series of compounds able to inhibit both hTL and the tumor-associated carbonic anhydrases (CAs; EC 4.2.1.1) IX and XII. Compounds 7 and 9 suppressed hTL activity in both cell lysates and human colon cancer cell lines, and prolonged incubation with either 7 or 9 resulted in telomere shortening, cell cycle arrest, replicative senescence, and apoptosis. Enzyme kinetics showed that 7 and 9 are mixed-type inhibitors of the binding of DNA primers and deoxynucleoside triphosphate (dNTP) to the TL catalytic subunit hTERT, which is in agreement with docking experiments. Compound 9 showed antitumor activity in Colo-205 mouse xenografts and suppressed telomerase activity by telomere reduction.

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Primary Citation of related structures