KEGG   ENZYME: 4.1.1.83Help
Entry
EC 4.1.1.83                 Enzyme                                 

Name
4-hydroxyphenylacetate decarboxylase;
p-hydroxyphenylacetate decarboxylase;
p-Hpd;
4-Hpd;
4-hydroxyphenylacetate carboxy-lyase
Class
Lyases;
Carbon-carbon lyases;
Carboxy-lyases
BRITE hierarchy
Sysname
4-(hydroxyphenyl)acetate carboxy-lyase (4-methylphenol-forming)
Reaction(IUBMB)
(4-hydroxyphenyl)acetate + H+ = 4-methylphenol + CO2 [RN:R07312]
Reaction(KEGG)
Substrate
4-hydroxyphenylacetate [CPD:C00642];
H+ [CPD:C00080]
Product
4-methylphenol [CPD:C01468];
CO2 [CPD:C00011]
Comment
The enzyme, from the strict anaerobe Clostridium difficile, can also use (3,4-dihydroxyphenyl)acetate as a substrate, yielding 4-methylcatechol as a product. The enzyme is a glycyl radical enzyme.
History
EC 4.1.1.83 created 2005
Orthology
K18427  
4-hydroxyphenylacetate decarboxylase large subunit
K18428  
4-hydroxyphenylacetate decarboxylase small subunit
Genes
CBK: 
CBT: 
CSQ: 
CCK: 
CDF: 
PDC: 
CDC: 
CDL: 
CDG: 
PDF: 
SGY: 
PUF: 
OLS: 
TFO: 
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Taxonomy
Reference
1  [PMID:3938267]
  Authors
D'Ari L, Barker HA.
  Title
p-Cresol formation by cell-free extracts of Clostridium difficile.
  Journal
Arch. Microbiol. 143 (1985) 311-2.
Reference
2  [PMID:11231288]
  Authors
Selmer T, Andrei PI.
  Title
p-Hydroxyphenylacetate decarboxylase from Clostridium difficile. A novel glycyl radical enzyme catalysing the formation of p-cresol.
  Journal
Eur. J. Biochem. 268 (2001) 1363-72.
  Sequence
Reference
3  [PMID:15153112]
  Authors
Andrei PI, Pierik AJ, Zauner S, Andrei-Selmer LC, Selmer T.
  Title
Subunit composition of the glycyl radical enzyme p-hydroxyphenylacetate decarboxylase. A small subunit, HpdC, is essential for catalytic activity.
  Journal
Eur. J. Biochem. 271 (2004) 2225-30.
  Sequence
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 
CAS: 
340137-18-0

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