1q5a is a 2 chain structure with sequence from Mus musculus. The March 2008 RCSB PDB Molecule of the Month feature on Cadherin by David S. Goodsell is 10.2210/rcsb_pdb/mom_2008_3. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Checkto colour the structure by Evolutionary Conservation, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.