You can search for samples based on organism
http://xtuition.ccr.buffalo.edu/search?query=human
You can search for samples based on organism species
http://xtuition.ccr.buffalo.edu/search?query=%22Clostridium+difficile%22
You can search for samples based on the target id from the Spine NESG database
http://xtuition.ccr.buffalo.edu/search?query=SfR275
You can search for samples based on the structure id from the PDB
http://xtuition.ccr.buffalo.edu/search?query=3DKZ
Search for samples that have crystals
http://xtuition.ccr.buffalo.edu/search?query=crystals
Search for samples that been classified
http://xtuition.ccr.buffalo.edu/search?query=classified
Search for samples with PDB ID
http://xtuition.ccr.buffalo.edu/search?query=%2Bpdb
Search for samples without a PDB ID
http://xtuition.ccr.buffalo.edu/search?query=-pdb