... 168–174are missing; in chain F, residues 1 and 168–175 are missing.All amino acid residues were present in the E chain, and part of the His-tag was observed in the B chain. A fewamino acid residues ... carried out in o [29] and coot [30]. In chain A, residues 1 and 169–176 are missing; in chain B, residues 167–172 are missing; in chain C, residues1, 2 and 169–174are missing; in chain D, residues ... residues are found in disallowed regions in the Ramachandran plot; these are A4, A165, A167, B3, B4 and F165, all of which are found at either the beginning or the end of a chain. The structure has...