CA 19-9 Human Protein
CA 19-9 human protein, 50 kU
|Description||CA 19-9 human protein, 50 kU|
|Protein Source||Cell culture|
|Concentration||0.331 OD280nm Units|
|Purity||Relative purity ratio: 281,897 Units/ml/OD280nm.|
|Buffer||Presentation State: Purified
State: Liquid (0.2 µm filtered) purified protein
Buffer System: PBS, pH 7.4 ± 0.02 containing 0.09% Sodium Azide as preserative.
|Bioactivity||Specific: 93,380 Units/ml (Centocor RIA 19-9 Assay)|
|Preparation||Liquid (0.2 µm filtered) purified protein|
|Protein Description||Human Cancer Antigen CA19-9 (Gastrointestinal Cancer) Antigen Grade. Known contaminants: 65 Units/ml (< 1%) Centocor CA125 RIA Assay.|
|Note||Caution: The human cell line supernatant tested negative for HIV 1&2 Ab, HIV Ag, HBsAg and HCV Ab. Because no test will guarantee a sample to be non-infective, all material derived from human fluids or tissues should be considered as potentially infectious.|
|Storage||Store the protein undiluted at 2-8°C for one month or (in aliquots) at -20°C for longer.
Avoid repeated freezing and thawing.
|Stability||Shelf life: one year from despatch.|