\name{int.didDDI}
\alias{int.didDDI}
\title{Domain-Domain interaction}
\description{
  int.didDDI gives domain-domain interactions from 3DID database.
}
\details{
  Domain identifier is given as Pfam identifier.
  
  Mappings were based on data provided by: 3DID (\url{http://gatealoy.pcb.ub.es/3did/download/3did_flat.gz}) on
  08-Mar-2009 
}

\examples{
     # Convert to a list
     xx <- as.list(int.didDDI)     
     if(length(xx) > 0){
         # Gets the first five interaction list
         xx[1:5]
         # Get the first one
         xx[[1]]
     }
}