Recombinant Human CKM Protein (His Tag)

Beta LifeScience SKU/CAT #: BLPSN-1289

Recombinant Human CKM Protein (His Tag)

Beta LifeScience SKU/CAT #: BLPSN-1289
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Product Overview

Tag His
Host Species Human
Accession AAH07462.1
Synonym CKMM, M-CK
Background CKM, also known as CK-MM, is mainly expressed in skeletal muscle. As the primary CK isoenzyme, it also can be detected in heart muscle. CKM is a subunit of creatine kinase (CK). CK is an enzyme expressed by various tissues and cell types. It catalyses the conversion of creatine and consumes adenosine triphosphate (ATP) to create phosphocreatine and adenosine diphosphate (ADP). In the cells, the cytosolic CK enzymes consist of two subunits, which can be either B (brain type) or M (muscle type).
Description A DNA sequence encoding the human CKM (AAH07462.1) (Met1-Lys381) was expressed with a His tag at the N-terminus.
Source E.coli
Predicted N Terminal His
AA Sequence Met1-Lys381
Molecular Weight The recombinant human CKM consists of 396 a.a. and predicts a molecular mass of 44.9 KDa. It migrates as an approximately 45 KDa band in SDS-PAGE under reducing conditions.
Purity >90% as determined by SDS-PAGE
Endotoxin Please contact us for more information.
Formulation Lyophilized from sterile 100mM HEPES, pH 7.0..
Stability The recombinant proteins are stable for up to 1 year from date of receipt at -70°C.
Usage For Research Use Only
Storage Store the protein under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

Target Details

Target Function Reversibly catalyzes the transfer of phosphate between ATP and various phosphogens (e.g. creatine phosphate). Creatine kinase isoenzymes play a central role in energy transduction in tissues with large, fluctuating energy demands, such as skeletal muscle, heart, brain and spermatozoa.
Subcellular Location Cytoplasm.
Protein Families ATP:guanido phosphotransferase family
Database References

Gene Functions References

  1. The formation of insoluble aggregates would decrease levels of active Creatine kinase (CK) which may provide clues in CK deficiency disease. Moreover, these results indicated that the degree of synergism had closely relationship to the conformational changes of CK PMID: 28916380
  2. Low CK-MB expression is associated with ST-Segment Elevation Myocardial Infarction. PMID: 28100880
  3. On admission, high-sensitivity troponin T/creatine kinase-MB ratio was significantly higher in takotsubo syndrome patients compared to myocardial infarction patients. PMID: 28595746
  4. A genetic factor known to be associated with constitutive creatine kinase levels is also associated with creatine kinase variability and inducibility and the variant has an impact on inducibility of creatine kinase by trauma through a homozygous carrier. PMID: 28790154
  5. Marathoners with a lower CKMM response after the race had a more favorable polygenic profile than runners with high serum CKMM concentrations. This might suggest a significant role of genetic polymorphisms in the levels of exertional muscle damage and rhabdomyolysis. PMID: 28257486
  6. Myocardial Creatine Kinase is a significant independent predictor of 6-month left ventricle remodeling in myocardial infarction patients. PMID: 28138312
  7. A positive association was found between PANSS-total and sCK [serum creatine kinase] in SzA [schizoaffective disorder] and BP-I; however, PANSS-positive scores correlated with sCK only in SzA. Serum CK may serve as a biomarker for affective exacerbation rather than psychosis. PMID: 27086253
  8. These results demonstrate an association between physical performance measures and genetic variation in the muscle-specific creatine kinase gene (rs8111989). PMID: 26327553
  9. Muscle pain induced by simvastatin resulted in increased levels of creatine kinase compared to non-treated patients. PMID: 26874453
  10. Data show that a low serum creatine kinase activity is more common in female than male, and is associated with older age. PMID: 26738403
  11. CK-MB mass is more significant criteria of myocardial injury. PMID: 25802449
  12. troponin T and creatinine kinase isoenzyme (CK-MB) have roles in combined renal and myocardial injuries in asphyxiated infants PMID: 24625749
  13. The serum expression levels of myocardial creatine kinase and of galectin-3 reflect the physiopathology state of children with congenital heart defects after surgical correction. PMID: 26118042
  14. The variant rs11559024 in the CKM gene (Glu83Gly) was significantly associated with CK levels of statin users. PMID: 25214527
  15. elderly women classified as high response experienced greater serum response to eccentric resistance exercise PMID: 24189370
  16. Based on the obtained results, it may be speculated that the CKM A/G polymorphism is not an important determinant of endurance performance level in Polish and Russian rowers. PMID: 26027379
  17. Substantive creatine phosphokinase increases and rhabdomyolysis with statin use were particularly seen in patients starting treatment, those on large daily doses or interacting drugs or with larger numbers of concomitant drugs PMID: 24602118
  18. serum CK-MB elevated in underweight hemodialysis patients PMID: 24846126
  19. Asymptomatic hyper-CKemia is an uncommon association with hyponatremia of various etiologies. PMID: 24673369
  20. Cardiac enzyme elevations post-cardiac bypass or post-percutaneous coronary intervention are associated with an adverse long-term mortality; the causes of which are multifactorial. PMID: 23993326
  21. 3D mapping of the CK reaction rates and metabolic fluxes can be achieved in the skeletal muscle in vivo at relatively high spatial resolution and with acquisition times well tolerated by patients. PMID: 23436474
  22. High levels of blood creatine-kinase MB are associated with embolism source during acute phase of ischemic stroke. PMID: 22592287
  23. This study explored the relationship of cardiac function examined by echocardiography and serum creatine kinase (CK) and CK-MB levels with myocardial ischemia-reperfusion injury in a cohort of Chinese acute myocardial infarction patients. PMID: 21873942
  24. The crystal structure of CK indicates that the E79 and K138 interaction plays key roles in sustaining the recognition between N-terminal and C-terminal domains of muscle creatine kinase. PMID: 23274523
  25. The current enzymatic definition of procedural myocardial infarct (MI) (CK-myocardial band more than 3 times the upper limit of normal) used in clinical trials is less strongly associated with death than that of spontaneous MI. PMID: 23122801
  26. Creatine kinase MM TaqI and methylenetetrahydrofolate reductase C677T and A1298C gene polymorphisms influence exercise-induced C-reactive protein levels. PMID: 21706313
  27. Results indicate that these polymorphisms can indirectly influence performance, contribute to higher susceptibility to exercise-induced inflammation or protection against it, and perhaps affect future risks of CVD in athletes. PMID: 21516340
  28. Common variants of MSTN and CKM genes don't play a role in attaining high level endurance performance in Caucasians. PMID: 20536908
  29. Elevated creatine kinase-MB is associated with elevated white blood cell count and atherosclerotic plaque in patients with elective stent implantation. PMID: 20591515
  30. Cardiac troponin T and creatine kinase have roles in infarct size and left ventricular function after acute myocardial infarction PMID: 21448949
  31. Muscle-type creatine kinase physically interacts with the slow skeletal muscle-type MyBPC1 (myosin-binding protein C1). PMID: 21426302
  32. The overall efficacy of IMA [ischemia modified albumin]in differentiating AMI[Acute Myocardial Infarction] from Non-AMI cases appears to be comparable to that of CK-MB and cTnI PMID: 21456469
  33. two residues close to the dimer interface of MMCK were crucial for species-specific thermal stability PMID: 20558199
  34. The researchers found no association between the CK response after exercise and the presence of the CK-MM NcoI polymorphism. PMID: 20157874
  35. percutaneous coronary intervention induces temporal changes of P-selectin, Mg, and CK-MB, which may be involved in restenosis and ischemia-reperfusion injury, but not PAI-1 PMID: 20669347
  36. Elevated CK-MB values after elective angioplasty predicts reduced long-term event-free survival. PMID: 19670037
  37. The Dimension Vista cTnI, CK-MB, MYO, NTproBNP, and hsCRP methods demonstrate acceptable performance characteristics for use as an aid in the diagnosis and risk assessment of patients presenting with suspected acute coronary syndromes. PMID: 19523464
  38. A short version of the muscle creatine kinase promoter(MCK1350) allows for sustained dystrophin expression in skeletal muscle of newborn mdx mice. PMID: 11922612
  39. Results identify muscle-type creatine kinase as a binding partner of a central portion of myomesin and the closely related M-protein. PMID: 12972258
  40. The roles of Ile-69 and Val-325 are discussed in the delivery of both substrate specificity and catalysis of human muscle creatine kinase isozyme. PMID: 15504039
  41. In top-level professional cyclists capable of completing a classic 3-wk tour race, the frequency distribution of the D allele and the DD genotype seems to be higher than in other endurance athletes such as elite runners. PMID: 16037885
  42. Creatinine kinase-MB levels are elevated after adverse outcomes following percutaneous coronary interventions PMID: 16087811
  43. Elevated levels of creatinine kinase-MB after percutaneous coronary intervention are not a predictor of adverse outcomes PMID: 16092153
  44. first monomeric intermediate captured during refolding of muscle-type creatine kinase; authors propose that aggregation is caused by interaction between such monomeric intermediates. PMID: 16373479
  45. CK-MM autoantibodies can modulate the rate of CK clearance from the circulation in myositis PMID: 16810680
  46. The results show conclusively that, Cys283 is not responsible for the pKa of 5.4 observed in the WT V/K(creatine) pH profile. PMID: 16981706
  47. generation of O-CK is a negative regulation of R-CK and O-CK might play essential roles in the molecular turnover of MM-CK PMID: 17303563
  48. CK-MM AA genotype and percent body fat may be part of the constellation of mechanisms that explain susceptibility to exertional rhabdomyolysis. PMID: 17478608
  49. Indicate a positive association of the ACE ID genotype with creatine kinase response to strenuous exercise. Genotype may determine risk for developing muscle damage. PMID: 17885020
  50. Muscle type CK elevation in hypertrabeculation/noncompaction suggests neuromuscular disorder and prompts neurological investigations. PMID: 18055044


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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.

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