Fission pathway: beta-ketoadipate pathway: Catechol branch
type: Pathway
id: P00009
name: bketo_catechol
name: 3-oxoadipate pathway: catechol branch
name: 3-ketoadipate pathway: catechol branch
name: catechol ortho-cleavage pathway
funneling branch: beta-ketoadipate branch
pathway component: catechol → cis,cis-muconic acid
pathway component: cis,cis-muconic acid → muconolactone
pathway component: muconolactone → beta-ketoadipate-enol-lactone
pathway order: BiochemicalPathwayStep
  step conversion: catechol → cis,cis-muconic acid
  reac id: R00001
  step order: 1
  next step: cis,cis-muconic acid → muconolactone
pathway order: BiochemicalPathwayStep
  step conversion: cis,cis-muconic acid → muconolactone
  reac id: R00002
  step order: 2
  next step: muconolactone → beta-ketoadipate-enol-lactone
pathway order: BiochemicalPathwayStep
  step conversion: muconolactone → beta-ketoadipate-enol-lactone
  reac id: R00003
  step order: 3
connections: beta-ketoadipate: lower branch
  type: PathwayConnection
  direction: downstream
  id: P00010
  pathway type: Fission
connections: benzoic acid
  type: PathwayConnection
  direction: upstream
  id: P00003
  pathway type: Funneling
  connecting substrate id: S00001
connections: phenol
  type: PathwayConnection
  direction: upstream
  id: P00008
  pathway type: Funneling
  connecting substrate id: S00001
connections: salicylic acid I
  type: PathwayConnection
  direction: upstream
  id: P00020
  pathway type: Funneling
  connecting substrate id: S00001
connections: guaiacol
  type: PathwayConnection
  direction: upstream
  id: P00025
  pathway type: Funneling
  connecting substrate id: S00001
created: 2026-02-28T10:42:00.330706+00:00
elignin note: This file is JSON-LD based on BioPAX Level 3 naming conventions. It is NOT a standards-compliant BioPAX OWL/RDF document. eLignin-specific extensions (elignin_id, connections, genes, …) are mapped to the http://www.elignindatabase.com/ontology# namespace. To convert to canonical BioPAX RDF/XML use pybiopax or a compatible RDF serialiser.

catechol → cis,cis-muconic acid
type: BiochemicalReaction
id: R00001
left: catechol
right: cis,cis-muconic acid
catalysis: Catalysis
  controller: catechol 1,2-dioxygenase
  controlled: catechol → cis,cis-muconic acid

catechol
type: SmallMolecule
id: S00001
chemical formula: C6H6O2
molecular weight: 110.11
xref: UnificationXref
  db: PubChem Compound
  id: 289
xref: UnificationXref
  db: ChEBI
  id: 18135
xref: UnificationXref
  db: KEGG Compound
  id: C00090
xref: UnificationXref
  db: CAS
  id: 120-80-9

cis,cis-muconic acid
type: SmallMolecule
id: S00137
chemical formula: C6H6O4
molecular weight: 142.11
xref: UnificationXref
  db: PubChem Compound
  id: 5280518
xref: UnificationXref
  db: ChEBI
  id: 16508
xref: UnificationXref
  db: KEGG Compound
  id: C02480
xref: UnificationXref
  db: CAS
  id: 505-70-4
xref: UnificationXref
  db: PubChem Compound
  id: 5280518
xref: UnificationXref
  db: ChEBI
  id: 16508
xref: UnificationXref
  db: KEGG Compound
  id: C02480
xref: UnificationXref
  db: CAS
  id: 505-70-4

catechol 1,2-dioxygenase
type: Protein
id: E00001
EC number: 1.13.11.1

cis,cis-muconic acid → muconolactone
type: BiochemicalReaction
id: R00002
left: cis,cis-muconic acid
right: muconolactone
catalysis: Catalysis
  controller: muconate cycloisomerase
  controlled: cis,cis-muconic acid → muconolactone

muconate cycloisomerase
type: Protein
id: E00002
EC number: 5.5.1.1

muconolactone → beta-ketoadipate-enol-lactone
type: BiochemicalReaction
id: R00003
left: muconolactone
right: beta-ketoadipate-enol-lactone
catalysis: Catalysis
  controller: muconolactone isomerase
  controlled: muconolactone → beta-ketoadipate-enol-lactone

muconolactone isomerase
type: Protein
id: E00003
EC number: 5.3.3.4