ISDA

Entry Detail

PDB ID:

4IYE

Keywords:

TOXIN

Title:

Crystal structure of AdTx1 (rho-Da1a) from eastern green mamba (Dendroaspis angusticeps)

Biological Source:

Source Organism:

Dendroaspis angusticeps

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2013-01-28

Release Date:

2013-05-08

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.95 Å

R-Value Free:

0.25

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 31 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Toxin AdTx1
Mutations:K34A
Chain IDs:A
Chain Length:66
Number of Molecules:1
Biological Source:Dendroaspis angusticeps

UniProt ID:P85092 Pfam ID:PF21947

Ligand Molecules

EDO

PEG

Primary Citation

Crystallization of recombinant green mamba rho-Da1a toxin during a lyophilization procedure and its structure determination.

Maiga, A, Vera, L, Marchetti, C, Lorphelin, A, Bellanger, L, Mourier, G, Servent, D, Gilles, N, Stura, E.A.Show

Acta Crystallogr.,Sect.F 69 704 709 (2013)

PMID: 23722859 DOI: 10.1107/S1744309113011470

Abstact

ρ-Da1a toxin from eastern green mamba (Dendroaspis angusticeps) venom is a polypeptide of 65 amino acids with a strong affinity for the G-protein-coupled α(1A)-adrenoceptor. This neurotoxin has been crystallized from resolubilized lyophilized powder, but the best crystals grew spontaneously during lyophilization. The crystals belonged to the trigonal space group P3(1)21, with unit-cell parameters a = b = 37.37, c = 66.05 Å, and diffracted to 1.95 Å resolution. The structure solved by molecular replacement showed strong similarities to green mamba muscarinic toxins.

Legend

Protein

Chemical

Disease

Primary Citation of related structures