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Cystathionine-β-lyase

Cystathionine-β-lyase is a diagnostic grade reagent from a microorganism host. This enzyme is useful for enzymatic determination of L-homocysteine when coupled with cystathionine β-synthase and lactate dehydrogenase in clinical analysis.

CY02D1-E311H
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Storage and Stability:

Product can be stored at 2–8°C for transportation process up to ten days but long-term storage should be at -20°C


Activity:

≥ 30U/mg solid


Unit Definition:

One unit hydrolyzes one micromole of cystathionine per minute at pH 8.0 and 37°C.


Grade:

Diagnostic Reagent


EC No.:

EC 4.4.1.13


Appearance:

Yellowish amorphous powder, lyophilized


Stabilizers:

Pyridoxal phosphate (PLP)


Molecular Weight:

44.5 kDa


Isoelectric Point:

6.3


Michaelis Constant:

3.74 ×10-4 M (L-Cystathionine)


Inhibitors:

Metal ions, NEM, SDS


Optimum pH:

8.0 ~ 8.5


Optimum Temperature:

37°C


pH Stability:

pH 6.5–8.5 (25°C, 20 hr)


Thermal Stability:

Below 40°C (pH 7.5, 30 min)




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