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475941

Sigma-Aldrich

Myokinase, Yeast

Synonym(s):

Myokinase, Yeast, Adenylate Kinase, ATP:AMP Phosphotransferase

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About This Item

CAS Number:
9013-02-9
Enzyme Commission number:
2.7.4.3 (BRENDA, IUBMB)
MDL number:
MFCD00131644
UNSPSC Code:
12352202
NACRES:
NA.54

form

lyophilized

Quality Level

100

specific activity

≥10 units/mg solid
≥200 U/mg

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated (hygroscopic)

pI 

5.7

solubility

water: 1 mg/mL

foreign activity

ATPase ≤0.01%
Phosphoglycerate kinase ≤0.1%

shipped in

wet ice

storage temp.

−20°C

General description

Native, yeast myokinase. Myokinase reversibly transfers phosphate from ATP to AMP, thus forming two molecules of ADP. The enzyme is specific for adenine nucleotides and catalyzes the reaction only in the presence of a divalent metal ion (e.g. Mg2+, Ca2+, Co2+, Mn2+, or Ni2+).
Native, yeast myokinase. Myokinase reversibly transfers phosphate from ATP to AMP, thus forming two molecules of ADP. The enzyme is specific for adenine nucleotides and catalyzes the reaction only in the presence of a divalent metal ion (e.g. Mg2+, Ca2+, Co2+, Mn2+, or Ni2+).
Note: 1 KU = 1000 units.

Warning

Toxicity: Standard Handling (A)

Unit Definition

One unit is defined as the amount of enzyme that will convert 1.0 µmol ATP and 1.0 µmol AMP to 2 µmol ADP per min at 25°C, pH 7.5. Note: 1 KU = 1000 units.

Physical form

Lyophilized from potassium phosphate buffer.

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.

Other Notes

Makarchikov, A.F., et al. 2002. Biochem. Biophys. Acta.1592, 117.
Schricker, R., et al. 2002. J. Biol. Chem.277, 28757.
Magdolen, V., et al. 1987. Curr. Genet.12, 405.
Tomasselli, A.G., et al. 1986. Eur. J. Biochem.155, 111.
Ito, Y., et al. 1980. Eur. J. Biochem.105, 85.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

475941-1KU:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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V Magdolen et al.
Current genetics, 12(6), 405-411 (1987-01-01)
The structural gene for yeast adenylate kinase (AKY) has been isolated and analyzed with respect to its nucleotide sequence. Southern and northern analyses imply that the gene is single copy and is transcribed into an mRNA of about 1,100 bases.
Y Ito et al.
European journal of biochemistry, 105(1), 85-92 (1980-03-01)
An improved homogeneous preparation of adenylate kinase (ATP:AMP phosphotransferase, ATP + AMP in equilibrium 2 ADP) from baker's yeast was attained by extraction using ethyl acetate and successive column chromatography on Affi-Gel blue, Sephadex G-100, phosphocellulose and Sephacryl S-200. The
A G Tomasselli et al.
European journal of biochemistry, 155(1), 111-119 (1986-02-17)
The complete amino acid sequence of cytosolic adenylate kinase (MgATP + AMP----MgADP + ADP) from baker's yeast has been determined. Tryptic and clostripaic cleavage of the protein yielded 27 and 10 fragments, respectively. They were sequenced with either a solid-phase
Roland Schricker et al.
The Journal of biological chemistry, 277(32), 28757-28764 (2002-06-05)
Yeast adenylate kinase (Aky2p, Adk1p) occurs simultaneously in cytoplasm and mitochondrial intermembrane space. It has no cleavable mitochondrial targeting sequence, and the signal for mitochondrial import and submitochondrial sorting is largely unknown. The extreme N terminus of Aky2p is able
Alexander F Makarchikov et al.
Biochimica et biophysica acta, 1592(2), 117-121 (2002-10-16)
Thiamine triphosphate (ThTP) is found at low concentrations in most animal tissues and it may act as a phosphate donor for the phosphorylation of proteins, suggesting a potential role in cell signaling. Two mechanisms have been proposed for the enzymatic

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