Biology — Tryptophan (trp) Operon

{
  "elements":[
    {"data":{"id":"trp","label":"Tryptophan present"}},
    {"data":{"id":"rep","label":"Active repressor"}},
    {"data":{"id":"op","label":"Operator blocked"}},
    {"data":{"id":"off","label":"Genes OFF"}},
    {"data":{"id":"low","label":"Tryptophan low"}},
    {"data":{"id":"free","label":"Operator free"}},
    {"data":{"id":"on","label":"Genes ON -> make Trp"}},
    {"data":{"source":"trp","target":"rep","label":"co-repressor"}},
    {"data":{"source":"rep","target":"op"}},
    {"data":{"source":"op","target":"off"}},
    {"data":{"source":"low","target":"free"}},
    {"data":{"source":"free","target":"on"}}
  ],
  "layout":{"name":"breadthfirst","directed":true}
}