ISDA: 8VTT

Deposition Date 2024-01-27

Release Date 2024-02-14

Last Version Date 2024-09-11

Entry Detail

PDB ID:

8VTT

Keywords:

DNA BINDING PROTEIN

Title:

Meis1 homeobox domain bound to neomycin fragment

Biological Source:

Source Organism:

Mus musculus (Taxon ID: 10090)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.45 Å

R-Value Free:

0.25

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

P 32 1 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Homeobox protein Meis1
Gene (Uniprot):Meis1
Chain IDs:A, B, C, D, E, F, G, H
Chain Length:67
Number of Molecules:8
Biological Source:Mus musculus

UniProt ID:Q60954 Pfam ID:PF05920

Ligand Molecules

RIO

SO4

Primary Citation

Identification of FDA-approved drugs that induce heart regeneration in mammals.

Ahmed, M.S, Nguyen, N.U.N, Nakada, Y, Hsu, C.C, Farag, A, Lam, N.T, Wang, P, Thet, S, Menendez-Montes, I, Elhelaly, W.M, Lou, X, Secco, I, Tomczyk, M, Zentilin, L, Pei, J, Cui, M, Dos Santos, M, Liu, X, Liu, Y, Zaha, D, Walcott, G, Tomchick, D.R, Xing, C, Zhang, C.C, Grishin, N.V, Giacca, M, Zhang, J, Sadek, H.A.Show

Nat Cardiovasc Res 3 372 388 (2024)

PMID: 39183959 DOI: 10.1038/s44161-024-00450-y

Abstact

Targeting Meis1 and Hoxb13 transcriptional activity could be a viable therapeutic strategy for heart regeneration. In this study, we performd an in silico screening to identify FDA-approved drugs that can inhibit Meis1 and Hoxb13 transcriptional activity based on the resolved crystal structure of Meis1 and Hoxb13 bound to DNA. Paromomycin (Paro) and neomycin (Neo) induced proliferation of neonatal rat ventricular myocytes in vitro and displayed dose-dependent inhibition of Meis1 and Hoxb13 transcriptional activity by luciferase assay and disruption of DNA binding by electromobility shift assay. X-ray crystal structure revealed that both Paro and Neo bind to Meis1 near the Hoxb13-interacting domain. Administration of Paro-Neo combination in adult mice and in pigs after cardiac ischemia/reperfusion injury induced cardiomyocyte proliferation, improved left ventricular systolic function and decreased scar formation. Collectively, we identified FDA-approved drugs with therapeutic potential for induction of heart regeneration in mammals.

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