Xanthosine monophosphate

Xanthosine monophosphate (xanthylate) is an intermediate in purine metabolism.^[1] It is a ribonucleoside monophosphate. It is formed from IMP via the action of IMP dehydrogenase, and it forms GMP via the action of GMP synthase. Also, XMP can be released from XTP by enzyme deoxyribonucleoside triphosphate pyrophosphohydrolase containing (d)XTPase activity.^[2]

Xanthosine monophosphate

Names
IUPAC name 5'-xanthylic acid
Other names xanthine ribotide, XMP
Identifiers
CAS Number	523-98-8 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:15652 N
ChemSpider	66054 N
KEGG	C00655 N
MeSH	Xanthosine+monophosphate
PubChem CID	122280
UNII	Y29K672ETF Y
CompTox Dashboard (EPA)	DTXSID20966674
InChI InChI=1S/C10H13N4O9P/c15-5-3(1-22-24(19,20)21)23-9(6(5)16)14-2-11-4-7(14)12-10(18)13-8(4)17/h2-3,5-6,9,15-16H,1H2,(H2,19,20,21)(H2,12,13,17,18)/t3-,5-,6-,9-/m1/s1 N Key: DCTLYFZHFGENCW-UUOKFMHZSA-N N InChI=1/C10H13N4O9P/c15-5-3(1-22-24(19,20)21)23-9(6(5)16)14-2-11-4-7(14)12-10(18)13-8(4)17/h2-3,5-6,9,15-16H,1H2,(H2,19,20,21)(H2,12,13,17,18)/t3-,5-,6-,9-/m1/s1 Key: DCTLYFZHFGENCW-UUOKFMHZBH
SMILES C1=NC2=C(N1[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O)O)O)O)NC(=O)NC2=O
Properties
Chemical formula	C10H13N4O9P
Molar mass	364.206 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 YN ?) Infobox references

It is abbreviated XMP.^[3]

See also

• Xanthosine

References

1. McMurry, John (2007). Organic chemistry: a biological approach. Cengage Learning. pp. 1007–. ISBN 9780495015253. Retrieved 26 March 2012.
2. Davies O, Mendes P, Smallbone K, Malys N (2012). "Characterisation of multiple substrate-specific (d)ITP/(d)XTPase and modelling of deaminated purine nucleotide metabolism" (PDF). BMB Reports. 45 (4): 259–64. doi:10.5483/BMBRep.2012.45.4.259. PMID 22531138.
3. Gogia, S.; Balaram, H.; Puranik, M. (May 2011). "Hypoxanthine guanine phosphoribosyltransferase distorts the purine ring of nucleotide substrates and perturbs the pKa of bound xanthosine monophosphate". Biochemistry. 50 (19): 4184–93. doi:10.1021/bi102039b. PMID 21486037.

Further reading

• Sigel, H; Operschall, BP; Griesser, R (2009). "Xanthosine 5'-monophosphate (XMP). Acid-base and metal ion-binding properties of a chameleon-like nucleotide" (PDF). Chemical Society Reviews. 38 (8): 2465–94. doi:10.1039/b902181g. PMID 19623361. S2CID 205726340. Archived from the original (PDF) on 2020-01-01.
• Egli, M; Pallan, PS (2010). "Crystallographic studies of chemically modified nucleic acids: A backward glance". Chemistry & Biodiversity. 7 (1): 60–89. doi:10.1002/cbdv.200900177. PMC 2905155. PMID 20087997.