Crystallization and preliminary X-ray analysis of arabinofuranosidase C from Aspergillus niger strain 3M43.

Crystals of arabinofuranosidase C purified from Aspergillus niger strain 3M43 have been obtained by vapour diffusion. The crystal belongs to the space group P2(1) with cell parameters a = 44.28, b = 71.99, c = 45.27 A and beta = 105.98 degrees with one molecule in the asymmetric unit. The X-ray diffraction pattern of these crystals extends to at least 2.20 A resolution with the use of synchrotron radiation. These crystals are stable on exposure to radiation and are suitable for structure determination.