Project Background

CK-MB (Creatine Kinase MB) is one of the three isoenzymes of creatine kinase (CK), alongside CK-BB and CK-MM. CK serves as a key enzyme in muscle metabolism, facilitating the reversible phosphorylation of creatinine through adenosine triphosphate (ATP). CK-MB, composed of two subunits (MW=40,000 each), features subunit M for muscle and subunit B for brain.

Originally, immunoassay techniques were employed to measure CK-MB activity and compare it to total CK activity, expressed as the CK-MB/CK ratio. However, challenges arose with the presence of CK-BB, adenylyl cyclase (AK), and atypical CK (large CK), which could not be neutralized by anti-M antibodies, potentially leading to excessively high CK-MB results.

Currently, many enzyme immunoassay techniques for quantifying CK-MB levels (ng/mL) are closely aligned with CK-MB activity measurement and are not interfered by CK-BB, atypical CK, and AK.

Performance

Chemiluminescence (Acridinium Ester) Platform:

Combination 1: Creatine Kinase Isoenzyme (CK-MB) Antibody (Cat. No.: EKY0095J) coated carboxyl magnetic beads + Creatine Kinase Isoenzyme (CK-MB) Antibody (Cat. No.: EKY0095K) labeled acridinium ester;

Linear range: 0.3ng/mL-300ng/mL;

Combination 2: Creatine Kinase Isoenzyme (CK-MB) Antibody (Cat. No.: EKY0095K) coated carboxyl magnetic beads + Creatine Kinase Isoenzyme (CK-MB) Antibody (Cat. No.: EKY0095J) labeled acridinium ester;

Linear range: 0.3ng/mL-300ng/mL;

Fluorescence Immunochromatography (Lanthanide Eu Chelate Filling) Platform:

Combination:Creatine Kinase Isoenzyme (CK-MB) Antibody (Cat. No.: EKY0095J) labeled fluorescent microspheres + Creatine Kinase Isoenzyme (CK-MB) Antibody (Cat. No.: EKY0095K) for streaking;

Linear range: 0.5ng/mL-100ng/mL.

Clinical Relevance

Chemiluminescence (Acridinium Ester) Platform:

The clinical correlation between the high-value part and R brand CK-MB reagent R2>0.98;

The correlation between the low-value part (≤15ng/mL) and R brand CK-MB reagent R2>0.96.

Fluorescence Immunochromatography (Lanthanide Eu Chelate Filling) Platform:

The clinical correlation between the high-value part and R brand CK-MB reagent R2>0.97;

The correlation between the low-value part (≤20ng/mL) and R brand CK-MB reagent R2>0.95.

Test Program

Chemiluminescence (Acridinium Ester) Platform:

Combination 1:

Antigen to be tested:CK-MB antigen (Cat. No.: EDD0408B), sample/standard adding volume: 20ul;

Reagent 1: Creatine Kinase Isoenzyme (CK-MB) Antibody (Cat. No.: EKY0095J) coated-magnetic bead dilution, dosage 50ul/test;

Reagent 2: Creatine Kinase Isoenzyme (CK-MB) Antibody (Cat. No.: EKY0095K) labeled-acridinate dilution, dosage 50ul/test;

Combination 2:

Antigen to be tested: CK-MB antigen (Cat. No.: EDD0408B), sample/standard adding volume: 20ul;

Reagent 1: Creatine Kinase Isoenzyme (CK-MB) Antibody (Cat. No.: EKY0095K) coated-magnetic bead dilution, dosage 50ul/test;

Reagent 2: Creatine Kinase Isoenzyme (CK-MB) Antibody (Cat. No.: EKY0095J) labeled-acridinate dilution, dosage 50ul/test;

Luminescence instrument used in the test: Cosmai SMART 500S; a chemiluminescence instrument compatible with various acridinium ester systems (such as Sichuan Mike, Shenzhen Yahuilong, Shandong Kanghua Bio, Getein Bio, Nanjing Norman, etc.).

Fluorescence Immunochromatography (Lanthanide Eu Chelate Filling) Platform:

Antigen to be tested:CK-MB antigen (Cat. No.: EDD0408B), sample/standard adding volume: 10ul;

Reaction conditions: mix sample + fluorescent solution, load sample, reaction time (10min-15min);

Fluorescence instrument used for testing: Hemai FIC-S100; an instrument compatible with various fluorescence systems (excitation wavelength 365nm, emission wavelength 615nm) (such as Guangzhou Labsim, etc.).

Product Information

Product	Item number	Recommended pairing
Creatine kinase isoenzyme (CK-MB) antibody	EKY0095J	Creatine kinase isoenzyme (CK-MB) antibody (Cat. No.: EKY0095J) coated carboxyl magnetic beads + Creatine kinase isoenzyme (CK-MB) antibody (Cat. No.: EKY0095K) labeled acridinium ester（Luminous Pairing Set1） Creatine kinase isoenzyme (CK-MB) antibody (Cat. No.: EKY0095K) coated carboxyl magnetic beads + Creatine kinase isoenzyme (CK-MB) antibody (Cat. No.: EKY0095J) labeled acridinium ester（Luminous Pairing Set2） Creatine kinase isoenzyme (CK-MB) antibody (Cat. No.: EKY0095J) labeled fluorescent microspheres + Creatine kinase isoenzyme (CK-MB) antibody (Cat. No.: EKY0095K) streaking（Fluorescence pair combination）
Creatine kinase isoenzyme (CK-MB) antibody	EKY0095K
Creatine kinase isozyme (CK-MB) antigen	EDD0408B
Creatine kinase isoenzyme (CK-MB) antibody (Cat. No.: EKY0095J)-Carboxyl Magnetic Bead Concentrate	DKY1312A
Creatine kinase isoenzyme (CK-MB) antibody (Cat. No.: EKY0095K) - Acridinium Ester Concentrate	DKY1312B
Creatine kinase isoenzyme (CK-MB) antibody (Cat. No.: EKY0095K)-Carboxyl Magnetic Bead Concentrate	DKY1312C
Creatine kinase isoenzyme (CK-MB) antibody (Cat. No.: EKY0095J) - Acridinium Ester Concentrate	DKY1312D
Creatine kinase isoenzyme (CK-MB) antibody (Cat. No.: EKY0095J) labeled fluorescent microsphere concentrate	DKY1312E
Carboxy magnetic beads (superparamagnetic), 1um	DEG0091B-1-100mg
Carboxy magnetic beads (superparamagnetic), 3um	DEG0091A-3-100mg
Time-resolved fluorescent microspheres, carboxyl (200nm）	AEG0786B

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