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Literature summary for 3.6.1.12 extracted from

  • Friese, A.; Kapoor, S.; Schneidewind, T.; Vidadala, S.R.; Sardana, J.; Brause, A.; Foerster, T.; Bischoff, M.; Wagner, J.; Janning, P.; Ziegler, S.; Waldmann, H.
    Chemical genetics reveals a role of dCTP pyrophosphatase 1 in Wnt signaling (2019), Angew. Chem. Int. Ed. Engl., 58, 13009-13013 .
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
gene DCTTP1, recombinant expression in HEK293 cells and of FLAG-tagged dCTPP1 in HCT-116 cells Homo sapiens

Protein Variants

Protein Variants Comment Organism
additional information enzyme downregulation, HEK293T cells are transiently transfected with siRNA targeting dCTPP1 or control siRNA. Wnt-responsive reporter gene assay is performed in HEK293T cells transiently transfected with SuperTOPFlash (STF) plasmid and siRNA targeting dCTPP1 or control siRNA Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
2-methyl-4-(3-phenyl[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)quinoline
-
Homo sapiens
2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethyl 2-(4-methoxyphenyl)-3-methyl-4-oxo-1,2,3,3a,4,9b-hexahydro[1]benzopyrano[3,4-b]pyrrole-1-carboxylate
-
Homo sapiens
benzimidazole
-
Homo sapiens
methyl 2-(4-methoxyphenyl)-3-methyl-4-oxo-3,4-dihydro[1]benzopyrano[3,4-b]pyrrole-1-carboxylate i.e. pyrcoumin, a pyrrolocoumarin, and a competitive inhibitor of dCTP pyrophosphatase 1 (dCTPP1). Pyrcoumin induces thermal stabilization of dCTPP1 with a shift in melting temperature of 6°C with a half-maximal effective concentration (EC50) of 0.0059 mM. 57% inhibition. Pyrcoumin impairs the direct interaction of dCTPP1 and ubiquitin carboxyl-terminal hydrolase (USP7, EC 3.4.19.12) Homo sapiens
additional information no inhibitory activity by methyl 3-benzyl-2-(4-methoxyphenyl)-4-oxo-3,4-dihydro[1]benzopyrano[3,4-b]pyrrole-1-carboxylate Homo sapiens

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information Michaelis-Menten kinetics Homo sapiens
0.019
-
dCTP pH and temperature not specified in the publication, recombinant enzyme Homo sapiens

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
5-methyl-dCTP + H2O Homo sapiens
-
5-methyl-dCMP + diphosphate
-
?
dCTP + H2O Homo sapiens
-
dCMP + diphosphate
-
?

Organism

Organism UniProt Comment Textmining
Homo sapiens Q9H773
-
-

Purification (Commentary)

Purification (Comment) Organism
dCTPP1 co-elutes with USP7 in gel filtration shift assays with recombinant USP7 and dCTPP1 from HCT-116 cell extract Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
HCT-116 cell
-
Homo sapiens
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
5-methyl-dCTP + H2O
-
Homo sapiens 5-methyl-dCMP + diphosphate
-
?
dCTP + H2O
-
Homo sapiens dCMP + diphosphate
-
?

Synonyms

Synonyms Comment Organism
dCTP pyrophosphatase 1
-
Homo sapiens
DCTPP1
-
Homo sapiens

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
additional information
-
additional information inhibition kinetics Homo sapiens

IC50 Value

IC50 Value IC50 Value Maximum Comment Organism Inhibitor Structure
0.000044
-
pH and temperature not specified in the publication, recombinant enzyme Homo sapiens benzimidazole
0.0011
-
pH and temperature not specified in the publication, recombinant enzyme Homo sapiens 2-methyl-4-(3-phenyl[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)quinoline
0.0033
-
pH and temperature not specified in the publication, recombinant enzyme Homo sapiens methyl 2-(4-methoxyphenyl)-3-methyl-4-oxo-3,4-dihydro[1]benzopyrano[3,4-b]pyrrole-1-carboxylate
0.0148
-
pH and temperature not specified in the publication, recombinant enzyme Homo sapiens 2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethyl 2-(4-methoxyphenyl)-3-methyl-4-oxo-1,2,3,3a,4,9b-hexahydro[1]benzopyrano[3,4-b]pyrrole-1-carboxylate

General Information

General Information Comment Organism
metabolism dCTPP1 plays a role in regulation of Wnt/bcatenin signaling most likely through a direct interaction with USP7. Canonical Wnt/beta-catenin signaling is a fundamental growth control pathway essential for, for example, embryonic development, stem cell maintenance, cell proliferation and tissue homeostasis, pathway regulation, overview. Upon activation the central Wnt pathway component beta-catenin is no longer phosphorylated and degraded by the so-called destruction complex, but rather stabilized and translocated to the nucleus, where it activates the expression of Wnt target genes Homo sapiens
physiological function the canonical Wnt pathway is essential for normal embryonic development and tissue homeostasis, and its deregulation plays a crucial role in carcinogenesis. dCTP pyrophosphatase 1 (dCTPP1) is a positive regulator of canonical Wnt signaling, interacts with ubiquitin carboxyl-terminal hydrolase (USP7, EC 3.4.19.12) in Wnt signal-dependent manner, and this interaction is weakened by dCTPP1 inhibitors, e.g. pyrcoumin. Analysis of interaction between dCTPP1 and USP7 and the role for dCTPP1 in the Wnt/beta-catenin pathway, overview Homo sapiens