Errors preparing a cadidate GT list: GT search error: structure Array is not a dimer. <br>Only one inter-residue bond should be specified. If your 'dimer' contains sugar modifiers, such as N-acetyl groups, specify them as constraints on donor or substrate. <br>For example, use <tt>DIMER: aDGlcp(1-3)bDGlcpN</tt> and <tt>SUBSTRATE Ac(1-2)bDGlcpN (AS FRAGMENT)</tt> to find a GT that transfers aDGlcp to position 3 of N-acetyl-bDGlcpN