Abstract
We present preliminary structural results of the non-structural protein 3 (nsP3) macro domain from the Mayaro virus (MAYV), an emerging virus of South American tropic regions, by means of synchrotron X-ray powder diffraction. Indexing of the diffraction patterns indicate a trigonal/hexagonal lattice (a = 61.60 Å, c = 94.61 Å), analogous to the known lattice of the sequence homologous nsP3 macro domain from the Chikungunia virus (CHIKV), though MAYV must have looser molecular packing: the cell dimensions of MAYV are significantly altered in comparison to CHIKV and the unit cell comprises 6 molecules and 58% solvent. The results are discussed in terms of their methodological and biological importance.
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