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Literature summary extracted from

  • Bartkiewicz, M.; Grzybowska, E.; Sierakowska, H.; Shugar, D.
    Reassociable dimer subunit of potato nucleotide pyrophosphatase; specificity and stability (1985), Biochim. Biophys. Acta, 830, 313-319.
No PubMed abstract available

General Stability

EC Number General Stability Organism
3.6.1.9 tetrameric form stored at 4°C for longer periods remains active, but in aqueous solution higher insoluble aggregates formed Solanum tuberosum

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.6.1.9 74000
-
4 * 74000, SDS-PAGE Solanum tuberosum
3.6.1.9 74000
-
2 * 74000, SDS-PAGE, alkali-treated preparation, different substrate specificity compared to the tetrameric form Solanum tuberosum
3.6.1.9 346000
-
sucrose density gradient centrifugation Solanum tuberosum

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.6.1.9 2',3'-cAMP + H2O Solanum tuberosum low activity for the tetramer adenosine monophosphate
-
?
3.6.1.9 NAD+ + H2O Solanum tuberosum tetramer 4fold more active than dimer NMN + AMP
-
?

Organism

EC Number Organism UniProt Comment Textmining
3.6.1.9 Solanum tuberosum
-
potato
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.6.1.9 tuber
-
Solanum tuberosum
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.6.1.9 2',3'-cAMP + H2O low activity for the tetramer Solanum tuberosum adenosine monophosphate
-
?
3.6.1.9 bis(p-nitrophenyl)phosphate + H2O dimer nearly 4fold more active than tetramer Solanum tuberosum p-nitrophenol + p-nitrophenylphosphate
-
?
3.6.1.9 NAD+ + H2O tetramer 4fold more active than dimer Solanum tuberosum NMN + AMP
-
?
3.6.1.9 p-nitrophenyl phenylphosphonate + H2O dimer 8fold more active than tetramer Solanum tuberosum p-nitrophenol + phenylphosphonate
-
?
3.6.1.9 P1,P2-di(adenosine-5') diphosphate + H2O tetramer 3fold more active than dimer Solanum tuberosum ?
-
?
3.6.1.9 P1,P2-di(thymidine-3') diphosphate + H2O very low activity for both dimer and tetramer Solanum tuberosum ?
-
?
3.6.1.9 P1,P2-di(thymidine-5') diphosphate + H2O low activity for both dimer and tetramer Solanum tuberosum ?
-
?
3.6.1.9 P1,P3-di(adenosine-5') triphosphate + H2O tetramer 2fold more active than dimer Solanum tuberosum ?
-
?
3.6.1.9 thymidine 3'-monophosphate p-nitrophenyl ester + H2O dimer 10fold more active than tetramer Solanum tuberosum thymidine 3'-monophosphate + p-nitrophenol
-
?
3.6.1.9 thymidine 5'-monophosphate p-nitrophenyl ester + H2O equal activity for dimer and tetramer Solanum tuberosum thymidine 5'-monophosphate + p-nitrophenol
-
?

Subunits

EC Number Subunits Comment Organism
3.6.1.9 dimer 2 * 74000, SDS-PAGE, alkali-treated preparation, different substrate specificity compared to the tetrameric form Solanum tuberosum
3.6.1.9 tetramer 4 * 74000, SDS-PAGE Solanum tuberosum

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.6.1.9 45
-
rapid loss of activity for the dimeric form, tetrameric form remains fully stable Solanum tuberosum
3.6.1.9 55
-
full stability for the tetramer up to 1 h Solanum tuberosum