ISDA

Entry Detail

PDB ID:

5HZV

Keywords:

SIGNALING PROTEIN

Title:

Crystal structure of the zona pellucida module of human endoglin/CD105

Biological Source:

Source Organism:

Escherichia coli (strain K12), Homo sapiens

Host Organism:

Homo sapiens

PDB Version:

Deposition Date:

2016-02-03

Release Date:

2017-06-07

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.70 Å

R-Value Free:

0.27

R-Value Work:

0.23

R-Value Observed:

0.23

Space Group:

P 65

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Maltose-binding periplasmic protein,Endoglin
Mutations:D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N,D449A, K450A, E539A, N540A, A582H, K586H, K606A, A679V, I684V, E726A, E729A, D730A AND R734N
Chain IDs:A
Chain Length:626
Number of Molecules:1
Biological Source:Escherichia coli (strain K12), Homo sapiens

UniProt ID:P0AEX9 Pfam ID:PF01547 EC:7.5.2.1

Ligand Molecules

GOL

Peptide-like Molecules

PRD_900001

Primary Citation

Structural Basis of the Human Endoglin-BMP9 Interaction: Insights into BMP Signaling and HHT1.

Saito, T, Bokhove, M, Croci, R, Zamora-Caballero, S, Han, L, Letarte, M, de Sanctis, D, Jovine, L, Gougos, A, Letarte, M, Bork, P, Sander, C, Jovine, L, Darie, C.C, Litscher, E.S, Wassarman, P.M, Han, L, Monne, M, Okumura, H, Schwend, T, Cherry, A.L, Flot, D, Matsuda, T, Jovine, L, Bokhove, M, Nishimura, K, Brunati, M, Han, L, de Sanctis, D, Rampoldi, L, Jovine, L.Show

Cell Rep 19 1917 1928 (2017)

PMID: 28564608 DOI: 10.1016/j.celrep.2017.05.011

Abstact

Endoglin (ENG)/CD105 is an essential endothelial cell co-receptor of the transforming growth factor β (TGF-β) superfamily, mutated in hereditary hemorrhagic telangiectasia type 1 (HHT1) and involved in tumor angiogenesis and preeclampsia. Here, we present crystal structures of the ectodomain of human ENG and its complex with the ligand bone morphogenetic protein 9 (BMP9). BMP9 interacts with a hydrophobic surface of the N-terminal orphan domain of ENG, which adopts a new duplicated fold generated by circular permutation. The interface involves residues mutated in HHT1 and overlaps with the epitope of tumor-suppressing anti-ENG monoclonal TRC105. The structure of the C-terminal zona pellucida module suggests how two copies of ENG embrace homodimeric BMP9, whose binding is compatible with ligand recognition by type I but not type II receptors. These findings shed light on the molecular basis of the BMP signaling cascade, with implications for future therapeutic interventions in this fundamental pathway.

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Primary Citation of related structures