A. D. McLachlan

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The observation that the acid proteases contain two structurally equivalent lobes related by a dyad through the active centre has been extended to show that in endothiapepsin each lobe contains two similar halves related by a further local dyad. In lobe 1 22 pairs of alpha-carbons are equivalent with a root mean square deviation of 1.92 A. In lobe 2 17(More)
We describe a new method of comparing sequences, based on the Needleman-Wunsch sequence alignment algorithm, which can detect similarities that are interrupted by insertions or deletions in either sequence. The sequences are compared by calculating for each pair of residues a score which represents the best local alignment bringing those residues into(More)
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