. . . "Definition: A pool of molecules that are neither complexes nor are genetically encoded.\n\nRationale: Identity of small molecules are based on structure, rather than sequence as in the case of DNA, RNA or Protein. A small molecule reference is a grouping of several small molecule entities that have the same chemical structure. \n\nUsage : Smalle Molecules can have a cellular location and binding features. They can't have modification features as covalent modifications of small molecules are not considered as state changes but treated as different molecules.\nSome non-genomic macromolecules, such as large complex carbohydrates are currently covered by small molecules despite they lack a static structure. Better coverage for such molecules require representation of generic stoichiometry and polymerization, currently planned for BioPAX level 4.\n\nExamples: glucose, penicillin, phosphatidylinositol"^^ . "Definition: A pool of molecules that are neither complexes nor are genetically encoded.\n\nRationale: Identity of small molecules are based on structure, rather than sequence as in the case of DNA, RNA or Protein. A small molecule reference is a grouping of several small molecule entities that have the same chemical structure. \n\nUsage : Smalle Molecules can have a cellular location and binding features. They can't have modification features as covalent modifications of small molecules are not considered as state changes but treated as different molecules.\nSome non-genomic macromolecules, such as large complex carbohydrates are currently covered by small molecules despite they lack a static structure. Better coverage for such molecules require representation of generic stoichiometry and polymerization, currently planned for BioPAX level 4.\n\nExamples: glucose, penicillin, phosphatidylinositol"^^ . "Definition: A pool of molecules that are neither complexes nor are genetically encoded.\n\nRationale: Identity of small molecules are based on structure, rather than sequence as in the case of DNA, RNA or Protein. A small molecule reference is a grouping of several small molecule entities that have the same chemical structure. \n\nUsage : Smalle Molecules can have a cellular location and binding features. They can't have modification features as covalent modifications of small molecules are not considered as state changes but treated as different molecules.\nSome non-genomic macromolecules, such as large complex carbohydrates are currently covered by small molecules despite they lack a static structure. Better coverage for such molecules require representation of generic stoichiometry and polymerization, currently planned for BioPAX level 4.\n\nExamples: glucose, penicillin, phosphatidylinositol"^^ . . . . . . . . . . . . . . . . . . . . . . . . .