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Key Documents

I0879

Sigma-Aldrich

Inosine 5′-triphosphate trisodium salt

≥95%

Synonym(s):

ITP

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About This Item

Empirical Formula (Hill Notation):
C10H12Na3N4O14P3
CAS Number:
Molecular Weight:
574.11
MDL number:
UNSPSC Code:
41106305
PubChem Substance ID:
NACRES:
NA.51

Assay

≥95%

shipped in

dry ice

storage temp.

−20°C

SMILES string

[Na].OC1C(O)C(OC1COP(O)(=O)OP(O)(=O)OP(O)(O)=O)n2cnc3C(=O)N=CNc23

InChI

1S/C10H15N4O14P3.Na.H/c15-6-4(1-25-30(21,22)28-31(23,24)27-29(18,19)20)26-10(7(6)16)14-3-13-5-8(14)11-2-12-9(5)17;;/h2-4,6-7,10,15-16H,1H2,(H,21,22)(H,23,24)(H,11,12,17)(H2,18,19,20);;

InChI key

RIERCUPIZLBNFQ-UHFFFAOYSA-N

Gene Information

human ... HRAS(3265)

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Application

Inosine 5′-triphosphate (ITP) is used in studies on the impact of deamination of ATP and GTP by various enzymes and chemical processes. ITP may be used as a substrate to study the specificity and kinetics of nucleoside-5′-triphosphatase and ATPase. ITP is also used to study activation of various ATPases and GTPases.
Inosine 5′-triphosphate trisodium salt has been used to investigate its influence on the chromosome aberration rate, the mitotic rate, sister-chromatid exchange (SCE) frequency, the proportion of first (X1), second (X2) and third (X3) division metaphases of human peripheral lymphocytes.

Biochem/physiol Actions

Inosine 5′-triphosphate (ITP) has the ability to support the initiation of effector system. It can prevent guanosine 5′-triphosphate (GTP) hydrolysis, that is catalysed by transducin (TD). ITP can proficiently induce secretion in permeabilized cells than GTP. Instead of GTP, ITP can be used for the initiation and the elongation steps of reovirus transcription. ITP can also replace GTP in the activation of G-protein.

Preparation Note

Prepared from Bacterial ATP

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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T Toyo-oka
Circulation research, 49(6), 1350-1355 (1981-12-01)
The contraction of cardiac muscle that has been treated with glycerol requires Ca2+ (pCa 8-5), when MgATP is used as a substrate. In contrast, this preparation contracts, even in the absence of Ca2+ (pCa 8-10), when ATP is replaced by
Hui-Yu Liu et al.
Biochemical pharmacology, 64(4), 583-593 (2002-08-09)
The G(s)-proteins G(salpha-short) (G(salphaS)) and G(salpha-long) (G(salphaL)), and the olfactory G(s) protein (G(alphaolf)) mediate activation of adenylyl cyclase by the beta(2)-adrenoceptor (beta(2)AR). Early studies showed that the purine nucleotides GTP, ITP, and XTP differentially support receptor-mediated adenylyl cyclase activation in
R Rao et al.
The Journal of biological chemistry, 263(12), 5569-5573 (1988-04-25)
The stoichiometry of nucleotide binding to the isolated alpha- and beta-subunits of Escherichia coli F1-ATPase was investigated using two experimental techniques: (a) titration with fluorescent trinitrophenyl (TNP) derivatives of AMP, ADP, and ATP and (b) the centrifuge column procedure using
H J Wieker et al.
Biochimica et biophysica acta, 806(1), 35-41 (1985-01-23)
The hydrolysis of MgATP and MgITP by mitochondrial F1-ATPase from Saccharomyces cerevisiae is competitively inhibited by alpha, beta-CrADP, alpha, beta, gamma-CrATP and beta, gamma-CrATP. The apparent K1 values of the three complexes are in the range of the half-saturating MgATP
Jimin Zheng et al.
Structure (London, England : 1993), 13(10), 1511-1520 (2005-10-12)
Inosine triphosphate (ITP) and xanthosine triphosphate (XTP) are formed upon deamination of ATP and GTP as a result of exposure to chemical mutagens and oxidative damage. Nucleic acid synthesis requires safeguard mechanisms to minimize undesired lethal incorporation of ITP and

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