Description
MA 104 cells inoculated with parainfluenza 2 virus, strain II ALTB cc 2056. The Parainfluenza-2 Virus was grown on monolayer of MA cells. When the cultures showed pronounced c.p.e. virus containing medium was purified from cell fragments by low speed centrifugation (5000 rpm, 40 min). Virus was pelleted by high speed centrifugation at 18000 rpm for 2.5 hours in the SW27 rotor for 20 min at + 4 oC, then the supernatant was collected and protein concentration was determined by Lowry method.

Immunological Activity
Serological studies of Parainfluenza virus, immunogen for antibody production.

Inactivation
Thimerosal and beta propiolactone treatment
This product has been treated in a manner consistent with methods of inactivation. Generally accepted good laboratory practices appropriate to microbiological/viral safe handling practices and techniques are required at work.

Purity
Greater than 90.0% as determined byAnalysis by SDS-PAGE.

Stability
Parainfluenza type-2 although stable 4¡ãC for 4 weeks, should be stored desiccated below -18¡ãC.
Please prevent freeze-thaw cycles.

Usage
TSZGENE's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.