A unique octameric structure of Axe2, an intracellular acetyl-xylooligosaccharide esterase from Geobacillus stearothermophilus - Lansky, S; Alalouf, O; Solomon, HV; Alhassid, A; Govada, L; Chayen, NE; Belrhali, H; Shoham, Y; Shoham, G (ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY, 2014)