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Courier is used to indicate commands and command options.
Courier italics are used to indicate command parameters, for example, filenames. Courier bold is used to indicate commands that are not displayed. Courier bold italics are used to indicate computer-generated output. Helvetica is used to indicate menu items. Aligns two protein sequences using the Smith- Waterman local alignment algorithm and parameters that William Pearson found to most likely detect sequence homology of proteins, without your having to answer any menu questions.