Record Information
Version1.0
Creation Date2016-07-13 19:47:40 UTC
Update Date2016-07-20 20:59:58 UTC
LmdbLMDB00340
Secondary Accession NumbersNone
Metabolite Identification
Common NamePhosphocreatine
DescriptionPhosphocreatine undergoes irreversible cyclization and dehydration to form creatinine at a fractional rate of 0.026 per day, thus forming approximately 2 g creatinine/day in an adult male. This is the amount of creatine that must be provided either from dietary sources or by endogenous synthesis to maintain the body pool of (creatine and) phosphocreatine. Creatine is an amino acid that plays a vital role as phosphocreatine in regenerating adenosine triphosphate in skeletal muscle to energize muscle contraction. Creatine is phosphorylated to phosphocreatine in muscle in a reaction that is catalyzed by the enzyme creatine kinase. This enzyme is in highest concentration in muscle and nerve. Oral administration increases muscle stores. During the past decade, creatine has assumed prominence as an ergogenic (and legal) aid for professional and elite athletes. Most (~ 95%) of the total body creatine-phosphocreatine pool is in muscle (more in skeletal muscle than in smooth muscle) and amounts to 120 g (or 925 mmol) in a 70 kg adult male. Approximately 60-67% of the content in resting muscle is in the phosphorylated form. This generates enough ATP at the myofibrillar apparatus to power about 4 seconds of muscle contraction in exercise. Phosphocreatine reacts with ADP to yield ATP and creatine; the reversible reaction is catalyzed by creatine kinase. phosphocreatine is the chief store of high-energy phosphates in muscle. Thus, this reaction, which permits the rephosphorylation of ADP to ATP, is the immediate source of energy in muscle contraction. During rest, metabolic processes regenerate phosphocreatine stores. In normal muscle, ATP that is broken down to ADP is immediately rephosphorylated to ATP. Thus, phosphocreatine serves as a reservoir of ATP-synthesizing potential. phosphocreatine is the only fuel available to precipitously regenerate ATP during episodes of rapid fluctuations in demand. The availability of phosphocreatine likely limits muscle performance during brief, high-power exercise, i.e., maximal exercise of short duration. With near maximal isometric contraction, the rate of utilization of phosphocreatine declines after 1-2 seconds of contraction, prior to the glycolysis peak at approximately 3 seconds. (PMID: 10079702 , Nutr Rev. 1999 Feb;57(2):45-50.).
Structure
Thumb
Synonyms
ValueSource
Creatine phosphateChEBI
Creatine phosphic acidChEBI
N-(N-Phosphonoamido)sarcosineChEBI
N-(Phosphonoamidino)sarcosineChEBI
N-PhosphorylcreatineChEBI
N(Omega)-phosphonocreatineChEBI
PhosphorylcreatineChEBI
{[imino(phosphonoamino)methyl](methyl)amino}acetic acidChEBI
N-PhosphocreatineKegg
Creatine phosphoric acidGenerator
{[imino(phosphonoamino)methyl](methyl)amino}acetateGenerator
Creatine-pHMDB
Creatine-phosphateHMDB
Creatinephosphoric acidHMDB
N-(Phosphonoamidino)-sarcosineHMDB
N-PhosphorocreatineHMDB
N-[Imino(phosphonoamino)methyl]-N-methyl-glycineHMDB
Neo-tonHMDB
p-CreatineHMDB
Chemical FormulaC4H10N3O5P
Average Molecular Weight211.1131
Monoisotopic Molecular Weight211.035806957
IUPAC Name2-(N-methyl-N'-phosphonocarbamimidamido)acetic acid
Traditional Namecreatine-phosphate
CAS Registry Number67-07-2
SMILES
CN(CC(O)=O)C(=N)NP(O)(O)=O
InChI Identifier
InChI=1S/C4H10N3O5P/c1-7(2-3(8)9)4(5)6-13(10,11)12/h2H2,1H3,(H,8,9)(H4,5,6,10,11,12)
InChI KeyDRBBFCLWYRJSJZ-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as alpha amino acids and derivatives. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon), or a derivative thereof.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentAlpha amino acids and derivatives
Alternative Parents
Substituents
  • Alpha-amino acid or derivatives
  • Organic phosphoric acid derivative
  • Guanidine
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
StatusDetected but not Quantified
OriginNot Available
BiofunctionNot Available
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP-2ALOGPS
logP-2.3ChemAxon
logS-1.8ALOGPS
pKa (Strongest Acidic)-1.1ChemAxon
pKa (Strongest Basic)13.53ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count5ChemAxon
Polar Surface Area133.95 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity53.18 m³·mol⁻¹ChemAxon
Polarizability16.82 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00xu-8900000000-629042926c139865eee8Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-00y0-9450000000-df5020cc675b212f021dSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-03di-3690000000-d78c9794110f04d1d633Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-004i-9000000000-da3c0dcb3f5eaa623db1Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-004i-9000000000-0b9440fbeacd93f8e2c6Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Positivesplash10-0002-0910000000-fcb05b7d59cf907f4d6bSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Positivesplash10-0002-1900000000-1901e001fedfc2ec7b4bSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Positivesplash10-000b-2900000000-12f13784032f6e791b0bSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Positivesplash10-02a9-6900000000-946c0f3e6d7108360bdfSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Positivesplash10-00lr-9300000000-722ca5d041fac0c0f953Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-IT (LC/MSD Trap XCT, Agilent Technologies) , Positivesplash10-03dl-0900000000-6b9000773d9aa9ba1496Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-IT (LC/MSD Trap XCT, Agilent Technologies) , Positivesplash10-03di-0900000000-02aa21f28669c4667876Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-IT (LC/MSD Trap XCT, Agilent Technologies) , Positivesplash10-000i-9200000000-1372c766f644a9c6d8fdSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0002-0910000000-fcb05b7d59cf907f4d6bSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0002-1900000000-1e02029e1cea569106e3Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-000b-2900000000-b5cede82b0440338b1eaSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-02a9-6900000000-946c0f3e6d7108360bdfSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-00lr-9300000000-d6c9bf7b75ad1b890b8eSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-IT , positivesplash10-03dl-0900000000-90e746baee0981214042Spectrum
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-03dl-6930000000-d778a54d1b16d7bf961aSpectrum
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-03dl-6940000000-fce4c19798ec230e0704Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-3590000000-34c39ac175e1138311dfSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00lu-5900000000-026fce60f9dbc70cfa3fSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00di-9200000000-4b05eb4ed02e14eb6029Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-03di-3980000000-c662d51968748ca689d8Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0409-9630000000-6983e9fb7f6307837b6bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00ba-9300000000-e548628e02490258e375Spectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
2D NMR[1H,1H] 2D NMR SpectrumNot AvailableSpectrum
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableSpectrum
Biological Properties
Cellular LocationsNot Available
Biofluid Locations and Tissue Locations
  • Milk
  • Serum
Concentrations
BiofluidStatusValueConditionSpeciesReferenceDetails
MilkDetected but not QuantifiedNot ApplicableNot AvailableBovine details
SerumDetected but not QuantifiedNot ApplicableNot AvailableBovine details
SerumDetected but not QuantifiedNot ApplicableNot AvailableBovine details
SerumDetected but not QuantifiedNot ApplicableNot AvailableBovine details
DrugBank IDDB13191
HMDB IDHMDB0001511
FooDB IDFDB022665
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG ID1594794
BioCyc IDCREATINE-P
METLIN ID6288
PDB IDNot Available
Wikipedia LinkPhosphocreatine
Chemspider ID567
ChEBI ID17287
PubChem Compound ID587
Kegg Compound IDC02305
YMDB IDNot Available
ECMDB IDECMDB01511
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Feldman EB: Creatine: a dietary supplement and ergogenic aid. Nutr Rev. 1999 Feb;57(2):45-50. [10079702 ]