title: 5,10-Methenyltetrahydrofolate
text: # 5,10-Methenyltetrahydrofolate
  
  5,10-Methenyltetrahydrofolate (5,10-CH=THF) is a form of tetrahydrofolate that is an intermediate in metabolism. 5,10-CH=THF is a coenzyme that accepts and donates methenyl (CH=) groups.
  
  It is produced from 5,10-methylenetetrahydrofolate by either a NAD+ dependent methylenetetrahydrofolate dehydrogenase, or a NADP+ dependent dehydrogenase. It can also be produced as an intermediate in histidine catabolism, by formiminotransferase cyclodeaminase, from 5-formiminotetrahydrofolate.
  
  5,10-CH=THF is a substrate for methenyltetrahydrofolate cyclohydrolase, which converts it into 10-formyltetrahydrofolate.
  
  ## Interactive pathway map
  
  Click on genes, proteins and metabolites below to link to respective articles.
  
  * ↑ The interactive pathway map can be edited at WikiPathways: "FluoropyrimidineActivity_WP1601".
  