2-Carboxy-D-arabitinol 1-phosphate

2-Carboxy-D-arabitinol 1-phosphate
Names
	IUPAC name 2-C-[(phosphonooxy)methyl]-D-ribonic acid
	Other names CA1P
Identifiers
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:17541;
ChemSpider	114616;
PubChem CID	129417;
CompTox Dashboard (EPA)	DTXSID80147765 ;
	InChI InChI=1S/C6H13O10P/c7-1-3(8)4(9)6(12,5(10)11)2-16-17(13,14)15/h3-4,7-9,12H,1-2H2,(H,10,11)(H2,13,14,15)/t3-,4-,6-/m1/s1 Key: UJTMIRNFEXKGMS-ZMIZWQJLSA-N;
	SMILES OC[C@@H](O)[C@@H](O)[C@](O)(COP(O)(O)=O)C(O)=O;
Properties
Chemical formula	C6H13O10P
Molar mass	276.134 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

2-Carboxy-D-arabitinol 1-phosphate (or CA1P) is a molecule produced in plants that inhibits the production of RuBisCO, a key enzyme in the Calvin cycle and carbon fixation. In dark conditions, this molecule binds to RuBisCO, preventing it from participating in chemical reactions. As the amount of light present increases, CA1P levels decrease, freeing RuBisCO's reactive ends, allowing more of the molecules to participate in chemical reactions. It can be broken down by the enzyme 2-carboxy-D-arabinitol-1-phosphatase into 2-carboxy-D-arabinitol.^[1]

References

^ Servaites JC (1990). "Inhibition of ribulose 1,5-bisphosphate carboxylase/oxygenase by 2-carboxyarabinitol-1-phosphate". Plant Physiol. 92 (4): 867–70. PMC 1062388. PMID 16667398.

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[pmid16667398-1] Servaites JC (1990). "Inhibition of ribulose 1,5-bisphosphate carboxylase/oxygenase by 2-carboxyarabinitol-1-phosphate". Plant Physiol. 92 (4): 867–70. PMC 1062388. PMID 16667398.

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