4IYE image
Entry Detail
PDB ID:
4IYE
Keywords:
Title:
Crystal structure of AdTx1 (rho-Da1a) from eastern green mamba (Dendroaspis angusticeps)
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2013-01-28
Release Date:
2013-05-08
Method Details:
Experimental Method:
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
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Toxin AdTx1
Mutations:K34A
Chain IDs:A
Chain Length:66
Number of Molecules:1
Biological Source:Dendroaspis angusticeps
Primary Citation
Crystallization of recombinant green mamba rho-Da1a toxin during a lyophilization procedure and its structure determination.
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.

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