Holds information for one SCOP domain.

Attributes:

• sid - SCOP identifier. e.g. d1danl2
• residues - The domain definition as a Residues object
• sccs - SCOP concise classification strings. e.g. b.1.2.1
• sunid - SCOP unique identifier for this domain
• hierarchy - A dictionary, keys are nodetype, values are sunid, describing the location of this domain in the SCOP hierarchy. See the Scop module for a description of nodetypes. This used to be a list of (key,value) tuples in older versions of Biopython (see Bug 3109).