PMID: 23722859 , Related PDB id: 4IYE

Authors:

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

Title:

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

Journal:

Acta Crystallogr Sect F Struct Biol Cryst Commun. 2013 Jun;69(Pt 6):704-9. doi:, 10.1107/S1744309113011470. Epub 2013 May 29.

Abstract:

rho-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 alpha(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 A, and diffracted to 1.95 A resolution. The structure solved by molecular replacement showed strong similarities to green mamba muscarinic toxins.