VMD User's Guide

esname ’A 1’More importantly, ribose atoms can be given names like C5’ or C5* (depending on the age ofthe PDB record). The lexer in VMD has been modified so that C5’, O", andN’’ can be usedwithout quotes, but it cannot handle an unquoted asterisk (* conflicts with multiplication and theparser is not able to resolve the difference). Some examples are:name ’O5*’segname ’A *’name O5’Quotes may also be used to get around a reserved selection word, like x. The selection commandsegname x will give an error because x is another keyword. Instead, use segname ’x’. Thereisanescape mechanism for including single quotes inside a single quoted string which uses a backslash(’\’) before the single quote. This allows unusual names like C ’ to be quoted as ’C \’’.segname xsegname ’x’name ’O5\’’