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Literature summary for 2.7.4.3 extracted from

  • Tomasselli, A.G.; Noda, L.H.
    Mitochondrial ATP:AMP phosphotransferase from beef heart: purification and properties (1980), Eur. J. Biochem., 103, 481-491.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
NaCl activation, 0.5-0.8 M Bos taurus

General Stability

General Stability Organism
stable to repeated freeze-thaw cycles, at 5-10 mg/ml Bos taurus

Inhibitors

Inhibitors Comment Organism Structure
AMP substrate inhibition Bos taurus
Butanedione
-
Bos taurus
P1,P5-diadenosine 5'-pentaphosphate strong Bos taurus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.114 0.13 AMP
-
Bos taurus
0.34 0.35 ADP cosubstrate ATP Bos taurus
0.65 0.7 ADP
-
Bos taurus

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol cytosolic and mitochondrial kinases are distinct isozymes Bos taurus 5829
-
mitochondrion cytosolic and mitochondrial kinases are distinct isozymes Bos taurus 5739
-

Metals/Ions

Metals/Ions Comment Organism Structure
Ba2+ not Bos taurus
Ca2+ in decreasing order of efficiency, but not for reaction of ADP + ADP: Mg2+, Co2+, Ca2+, Mn2+, Ni2+ Bos taurus
Co2+ requirement Bos taurus
Mg2+ requirement Bos taurus
Mg2+ in decreasing order of efficiency, but no reaction of ADP + ADP: Mg2+, Co2+, Ca2+, Mn2+, Ni2+ Bos taurus
Mn2+ in decreasing order of efficiency, but not for reaction of ADP + ADP: Mg2+, Co2+, Ca2+, Mn2+, Ni2+ Bos taurus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
additional information
-
comparison of amino acid composition of different sources Bos taurus

Organism

Organism UniProt Comment Textmining
Bos taurus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Bos taurus

Reaction

Reaction Comment Organism Reaction ID
ATP + AMP = 2 ADP mechanism Bos taurus

Source Tissue

Source Tissue Comment Organism Textmining
heart
-
Bos taurus
-

Storage Stability

Storage Stability Organism
0°C, at least 2 days Bos taurus
deep frozen, 10-13% loss of activity within 6 months Bos taurus
room temperature, at least 2 days Bos taurus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ADP + ADP
-
Bos taurus ATP + AMP
-
r
ATP + AMP best substrates Bos taurus ADP + ADP
-
r
ATP + AMP highly specific for AMP Bos taurus ADP + ADP
-
r
ATP + AMP less specific for ATP Bos taurus ADP + ADP
-
r
ATP + dAMP reaction at 30% the rate of AMP Bos taurus ADP + dADP
-
?
CTP + AMP reaction at 12% the rate of ATP Bos taurus ADP + CDP
-
?
dATP + AMP at the same rate as ATP Bos taurus dADP + ADP
-
?
GTP + AMP reaction at 5% the rate of AMP Bos taurus ADP + GDP
-
?
ITP + AMP reaction at 10% the rate of ATP Bos taurus IDP + ADP
-
?
UTP + AMP reaction at 20% the rate of AMP Bos taurus ADP + UDP
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
assay at Bos taurus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.8
-
-
Bos taurus
8
-
ADP + ADP Bos taurus

pH Stability

pH Stability pH Stability Maximum Comment Organism
5 11 1 h stable, 0.1-0.2 mg/ml, at 0°C Bos taurus
8
-
at least 2 days Bos taurus

pI Value

Organism Comment pI Value Maximum pI Value
Bos taurus mitochondrial enzyme, isoelectric focusing
-
9.3
Bos taurus cytosolic enzyme
-
10.1