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Profile analysis is a method for detecting distantly related proteins by sequence comparison. The basis for comparison is not only the customary Dayhoff mutational-distance matrix but also the results of structural studies and information implicit in the alignments of the sequences of families of similar proteins. This information is expressed in a(More)
The amino acid sequence of the rod portion of nematode myosin, deduced for the sequence of the unc-54 heavy chain gene of Caenorhabditis elegans, is highly repetitive and has the characteristics of an alpha-helical coiled coil. The molecular surface contains alternate clusters of positive and negative charge. Interactions between charge clusters on adjacent(More)
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)