IEP (IEF, CE): 3.6-4.7
MALDI-TOF MS:
Total molecular weight: 124±10 kD
Molecular weight protein: 104 kD (=84%)
Molecular weight carbohydrate: 20±10 kD (16±6%)
Accessible N-glycosylation sites: 2/subunit
Branching type: Higher branched (hybrid) type GlcNAc, Mannose, no
NeuAc detected
O-glycosylation sites: Not detected
Number of isoenzymes:
Present: 3 (MS)
Based on protein: 1 (MS)
Specification
Appearance: Clear, colorless solution in NaCl, 3 mol/L; MgCl2, 5
mmol/L; ZnCl2, 0.1 mmol/L; Tea, 30 mmol/L, pH approximately 7.6
pH value: 7.0-8.0
Protein (A280, 1 mg/ml=1, against water): 20±1 mg/mL
Specific activity (+37°C, 4-NPP): ≥7,000 U/mg
Alkaline Phosphatase (HPLC): ≥95 area% (HPLC profile added to
certificate)
Amino groups: 5-13 mol/mol
Carbohydrates, n=2: No limit
Stability: At +2 to +8°C within specification range for 12 months.
Marker enzyme for preparation of antibody- / antigen-enzyme
conjugates incorporated in highly sensitive immunoassay reagents for
colorimetric, fluorimetric and luminometric detection. Alkaline
Phosphatase is recommended for conjugation via carbohydrate groups
(content approximately 30%).
EC 3.1.3.1
Used in In Vitro Diagnostic tests and Life Sciences, Research & Development
2-8 °C