* Since the publication of this book in 2003, the SWISS-PROT database has become the UniProt Knowledgebase. The underlying data are the same, but the scope and user interface for the database have been updated. Thus, some of the exact instructions of the chapter have to be changed to reflect the change to UniProt. These changes are noted below by page number.

* Page 123:

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Stack trace:
#0 /apps/xmlpipedb/biodb/fall2013/includes/diff/DairikiDiff.php(480): _DiffEngine->_diag()
#1 /apps/xmlpipedb/biodb/fall2013/includes/diff/DairikiDiff.php(291): _DiffEngine->_compareseq()
#2 /apps/xmlpipedb/biodb/fall2013/includes/diff/DairikiDiff.php(175): _DiffEngine->diff_local()
#3 /apps/xmlpipedb/biodb/fall2013/includes/diff/DairikiDiff.php(653): _DiffEngine->diff()
#4 /apps/xmlpipedb/biodb/fall2013/includes/diff/DairikiDiff.php(820): Diff->__construct()
#5 /apps/xmlpipedb/biodb/fall2013/includes/diff/DairikiDiff.php(1240): MappedDiff->__construct()
#6 /apps/xmlpipedb/biodb/fall2013/includes/diff/DairikiDiff.php(1458): WordLevelDiff->__construct()
#7 /apps/xmlpipedb/biodb/fall2013/includes/diff/DairikiDiff.php(952): TableDiffFormatter->_changed()
#8 /apps/xmlpipedb/biodb/fall2013/includes/diff/DairikiDiff.php(895): DiffFormatter->_block()
#9 /apps/xmlpipedb/biodb/fall2013/includes/diff/DifferenceEngine.php(765): DiffFormatter->format()
#10 /apps/xmlpipedb/biodb/fall2013/includes/diff/DifferenceEngine.php(655): DifferenceEngine->generateDiffBody()
#11 /apps/xmlpipedb/biodb/fall2013/includes/diff/DifferenceEngine.php(593): DifferenceEngine->getDiffBody()
#12 /apps/xmlpipedb/biodb/fall2013/includes/diff/DifferenceEngine.php(566): DifferenceEngine->getDiff()
#13 /apps/xmlpipedb/biodb/fall2013/includes/diff/DifferenceEngine.php(409): DifferenceEngine->showDiff()
#14 /apps/xmlpipedb/biodb/fall2013/includes/Article.php(725): DifferenceEngine->showDiffPage()
#15 /apps/xmlpipedb/biodb/fall2013/includes/Article.php(478): Article->showDiffPage()
#16 /apps/xmlpipedb/biodb/fall2013/includes/actions/ViewAction.php(37): Article->view()
#17 /apps/xmlpipedb/biodb/fall2013/includes/Wiki.php(427): ViewAction->show()
#18 /apps/xmlpipedb/biodb/fall2013/includes/Wiki.php(304): MediaWiki->performAction()
#19 /apps/xmlpipedb/biodb/fall2013/includes/Wiki.php(536): MediaWiki->performRequest()
#20 /apps/xmlpipedb/biodb/fall2013/includes/Wiki.php(446): MediaWiki->main()
#21 /apps/xmlpipedb/biodb/fall2013/index.php(59): MediaWiki->run()
#22 {main}