code: def _breakup_gfe(self, gfe):
          
          [locus, feature_accessions] = gfe.split("w")
          accessions = feature_accessions.split("-")
          i = 0
          features = {}
          for feature_rank in self.structures[locus]:
              accession = accessions[i]
              features.update({feature_rank: accession})
              i += 1
  
          return(features)
docs: creates GFE from HLA sequence and locus
  
          :param locus: string containing HLA locus.
          :param sequence: string containing sequence data.
  
          :return: GFEobject.