Octopine

Octopine
Names

IUPAC name 2-[[1-Carboxyethyl]amino]-5-(diaminomethylideneamino)pentanoic acid^{[citation needed]}
Identifiers
CAS Number	34522-32-2 (2S)-2-{[(1R)-1-Carboxyethyl]amino}^N
3D model (JSmol)	Interactive image
3DMet	B05112
ChEBI	CHEBI:15805^Y
ChemSpider	414^N 389221 (2S)-2-Amino^N 97253 (2S)-2-{[(1R)-1-Carboxyethyl]amino}^N
KEGG	C04137^Y
MeSH	octopine
PubChem CID	427 440237 (2S)-2-Amino 12313676 (2S)-2-{[(1S)-1-Carboxyethyl]amino} 108172 (2S)-2-{[(1R)-1-Carboxyethyl]amino}
CompTox Dashboard (EPA)	DTXSID70946103
InChI InChI=1S/C9H18N4O4/c1-5(7(14)15)13-6(8(16)17)3-2-4-12-9(10)11/h5-6,13H,2-4H2,1H3,(H,14,15)(H,16,17)(H4,10,11,12)^N Key: IMXSCCDUAFEIOE-UHFFFAOYSA-N^N
SMILES CC(NC(CCCNC(N)=N)C(O)=O)C(O)=O
Properties
Chemical formula	C₉H₁₈N₄O₄
Molar mass	246.267 g·mol⁻¹
Related compounds
Related alkanoic acids	Daminozide Nopaline
Related compounds	Bis-tris propane Pantetheine
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references

Octopine is a derivative of the amino acids arginine and alanine. It was the first member of the class of chemical compounds known as opines to be discovered. Octopine gets its name from Octopus octopodia from which it was first isolated in 1927.^[1]

Octopine has been isolated from the muscle tissue of invertebrates such as octopus, Pecten maximus and Sipunculus nudus where it functions as an analog of lactic acid.^[2] Plants may also produce this compound after infection by Agrobacterium tumefaciens and transfer of the octopine synthesis gene from the bacterium to the plant. ^[3]

Octopine is formed by reductive condensation of pyruvic acid and arginine through the action of the NADH-dependent enzyme octopine dehydrogenase (ODH).^[4] The reaction is reversible so that pyruvic acid and arginine can be regenerated.

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References

^ Morizawa, Kiyoshi (1927). "The extractive substances in Octopus octopodia". Acta Scholae Medicinalis Universitatis Imperialis in Kioto. 9: 285–298.
^ Hockachka, P.; Hartline, P.; Fields, J. (1977). "Octopine as an end product of anaerobic glycolysis in the chambered nautilus". Science. 195 (4273): 72–4. Bibcode:1977Sci...195...72H. doi:10.1126/science.831256. PMID 831256.
^ Hooykaas, Paul J. J.; Schilperoort, Rob A. (1 May 1992). "Agrobacterium and plant genetic engineering". Plant Molecular Biology. 19 (1): 15–38. doi:10.1007/BF00015604. PMID 1600167. S2CID 36172990.
^ Smits, Sander H.J.; Mueller, Andre; Schmitt, Lutz; Grieshaber, Manfred K. (2008). "A Structural Basis for Substrate Selectivity and Stereoselectivity in Octopine Dehydrogenase from Pecten maximus". Journal of Molecular Biology. 381 (1): 200–11. doi:10.1016/j.jmb.2008.06.003. PMID 18599075.

This page was last edited on 17 September 2023, at 17:24

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References