Pipecolic acid

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Pipecolic acid
Piperidine-2-carboxylic acid.png
IUPAC name
piperidine-2-carboxylic acid
3D model (JSmol)
ECHA InfoCard 100.007.835
EC Number
  • 217-024-4
MeSH C031345
Molar mass 129.15704
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is ☑Y☒N ?)
Infobox references

Pipecolic acid (piperidine-2-carboxylic acid) is a small organic molecule which accumulates in pipecolic acidemia. It is a carboxylic acid of piperidine.

Biochemical effects[edit]

Pipecolic acid can be associated with some forms of epilepsy.[1]

CRYM, a taxon-specific crystallin protein that also binds thyroid hormones, is involved in the pipecolic acid pathway.

Environmental abundance and relevance[edit]

Pipecolic acid was identified in the Murchison meteorite.[2] It also occurs in the leaves of the genus Myroxylon, a tree from South America.[3]


Pipecolic acid, like many other α-amino acids, has a chiral stereocenter at the α carbon.

See also[edit]


  1. ^ Plecko B, Hikel C, Korenke GC, et al. (2005). "Pipecolic acid as a diagnostic marker of pyridoxine-dependent epilepsy". Neuropediatrics. 36 (3): 200–5. doi:10.1055/s-2005-865727. PMID 15944906.
  2. ^ Kvenholden, Keith A.; Lawless, James G.; Ponnamperuma, Cyril (February 1971). "Nonprotein Amino Acids in the Murchison Meteorite". Proceedings of the National Academy of Sciences. 68 (2): 486–490. doi:10.1073/pnas.68.2.486. PMC 388966. PMID 16591908.
  3. ^ Kite GC, Cardoso D, Lewis GP, Zartman CE, de Queiroz LP, Veitch NC (2015). "Monomethyl ethers of 4,5-dihydroxypipecolic acid from Petaladenium urceoliferum: Enigmatic chemistry of an enigmatic legume". Phytochemistry. 116: 198–202. doi:10.1016/j.phytochem.2015.02.026. PMID 25817832.