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.

5,10-Methenyltetrahydrofolate
Skeletal formula of 5,10-methenyltetrahydrofolate
Space-filling model of the 5,10-methenyltetrahydrofolate cation
Names
IUPAC name
N-[4-(3-amino-1-oxo-1,4,5,6,6a,7-hexahydro-8H-imidazo[1,5-f]pteridin-10-ium-8-yl)benzoyl]-L-glutamic acid
Other names
5,10-CH=THF
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
MeSH 5,10-methenyltetrahydrofolate
  • InChI=1S/C20H21N7O6/c21-20-24-16-15(18(31)25-20)27-9-26(8-12(27)7-22-16)11-3-1-10(2-4-11)17(30)23-13(19(32)33)5-6-14(28)29/h1-4,9,12-13H,5-8H2,(H6-,21,22,23,24,25,28,29,30,31,32,33)/p 1 checkY
    Key: MEANFMOQMXYMCT-UHFFFAOYSA-O checkY
  • InChI=1/C20H21N7O6/c21-20-24-16-15(18(31)25-20)27-9-26(8-12(27)7-22-16)11-3-1-10(2-4-11)17(30)23-13(19(32)33)5-6-14(28)29/h1-4,9,12-13H,5-8H2,(H6-,21,22,23,24,25,28,29,30,31,32,33)/p 1
    Key: MEANFMOQMXYMCT-IKLDFBCSAN
  • O=C(O)C(NC(=O)c1ccc(cc1)N4/C=[N ]3/C2=C(/N\C(=N/C2=O)N)NCC3C4)CCC(=O)O
Properties
C20H21N7O6
Molar mass 455.42 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

It is produced from 5,10-methylenetetrahydrofolate by either a NAD dependent methylenetetrahydrofolate dehydrogenase, or a NADP dependent dehydrogenase.[1] 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

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Click on genes, proteins and metabolites below to link to respective articles.[§ 1]

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|alt=Fluorouracil (5-FU) Activity edit]]
Fluorouracil (5-FU) Activity edit
  1. ^ The interactive pathway map can be edited at WikiPathways: "FluoropyrimidineActivity_WP1601".

References

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  1. ^ Fowler B (February 2001). "The folate cycle and disease in humans". Kidney Int. Suppl. 78: S221–9. doi:10.1046/j.1523-1755.2001.07851.x. PMID 11169015.