title: Model macromolecules for cell-cell recognition: can specificity arise from two independent molecular interactions?
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002118:Calcium / Q000494:pharmacology; D002241:Carbohydrates / Q000032:analysis; D002449:Cell Aggregation; D002450:Cell Communication; D007700:Kinetics; D010446:Peptide Fragments / Q000032:analysis; D011161:Porifera / Q000502:physiology
chemical_list: D000596:Amino Acids; D002241:Carbohydrates; D010446:Peptide Fragments; D002118:Calcium