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由来生物
bovine heart
品質水準
詳細
Contains primarily isozyme MM
タイプ
Type III
フォーム
salt-free, lyophilized powder
比活性
≥30 units/mg protein
分子量
80 kDa
保管温度
−20°C
詳細
Research area: Cell Signaling
Creatine phosphokinase (CPK) is an intracellular enzyme found predominantly in skeletal muscle, brain, and myocardium. CPK consists of two polypeptide subunits, namely M (muscle type) and B (brain type). The lighter subunit is present in larger amounts. The genes encoding these subunits are on distinct chromosomes, with B on 14q32 and M on 19q13. These subunits facilitate the development of three tissue-specific isoenzymes: CPK-MB (cardiac muscle), CPK-MM (skeletal muscle), and CPK-BB (brain).
Creatine phosphokinase (CPK) is an intracellular enzyme found predominantly in skeletal muscle, brain, and myocardium. CPK consists of two polypeptide subunits, namely M (muscle type) and B (brain type). The lighter subunit is present in larger amounts. The genes encoding these subunits are on distinct chromosomes, with B on 14q32 and M on 19q13. These subunits facilitate the development of three tissue-specific isoenzymes: CPK-MB (cardiac muscle), CPK-MM (skeletal muscle), and CPK-BB (brain).
アプリケーション
Creatine Phosphokinase from bovine heart has been used:
- in the reaction mix for the import of in vitro synthesized wild-type FLAG/MYC-tagged LYR Motif Containing 7 (LYRM7-F/M) or the LFK tripeptide replaced with alanine (LFK-AAA) mutant into isolated mitochondria
- in autoubiquitination assay
- in the preparation of premix buffer for adenylyl cyclase activity
- in the preparation of E-mix for in vitro nuclear assembly and isolation
- in in vitro vesicular fusion assay.
- in ATP regeneration system, to facilitate the reactivation of nonmotile axonemes.
- in subcellular in vitro fusion assay of autophagosome with lysosome.
- in in vitro protein translation assay.
- for tATPase assay of myofibrillar protein isolated from rabbit. This assay evaluated the kinetic influence of bound creatine kinase (CK) on Ca2+-activated myosin ATPase.
- for the enzymatic hydrolysis of protein samples during tryptophan estimation by pyrolysis gas chromatography.
Creatine phosphokinase from bovine heart has been used to investigate whether endothelial cell growth is stimulated by ischemic hearts. Creatine phosphokinase from bovine heart has also been used to evaluate the effect of high but nontoxic dietary intake of copper and selenium on metabolism in calves.
生物化学的/生理学的作用
Creatine kinase plays a key role in the energy metabolism of cells with intermittently high and fluctuating energy requirements. Examples of such cells include cardiac or skeletal muscle cells and neural tissues of brain and retina. The enzyme catalyzes the reversible transfer of the phosphoryl group from phosphorylcreatine to ADP, in order to generate ATP. The molecular mass of the protein is found to be approximately 80,000 Da. It is made up of 2 subunits, each having a molecular weight of 40,000 ± 2000. The lighter subunit is present in larger amounts.CPK is released from the cellular cytosol into the systemic circulation due to disruption of cell membranes caused by hypoxia or other injuries. Furthermore, it serves as a diagnostic indicator for rhabdomyolysis and acute myocardial infarction (AMI), along with other medical disorders such as acute muscle injury, arrhythmias, and congestive cardiac failure.
注意
希釈による不活性化を避けるため、反応バッファ-には0.1%アルブミンを添加することをお勧めします。
単位の定義
1ユニットは、pH 7.4、30°C、1分間で、1.0 μmolのリン酸をホスホクレアチニンからADPへと転移させる酵素量です。
アナリシスノート
タンパク質はBiuret法で測定。
保管分類コード
11 - Combustible Solids
WGK
WGK 3
引火点(°F)
Not applicable
引火点(℃)
Not applicable
個人用保護具 (PPE)
Eyeshields, Gloves, type N95 (US)
適用法令
試験研究用途を考慮した関連法令を主に挙げております。化学物質以外については、一部の情報のみ提供しています。 製品を安全かつ合法的に使用することは、使用者の義務です。最新情報により修正される場合があります。WEBの反映には時間を要することがあるため、適宜SDSをご参照ください。
Jan Code
C7886-500UN:
C7886-3.5KU:
C7886-1KU:
C7886-VAR:
C7886-35KU:
C7886-17.5KU:
C7886-BULK:
最新バージョンのいずれかを選択してください:
試験成績書(COA)
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Clinical chemistry, 30(9), 1555-1557 (1984-09-01)
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