This product was assayed by immunoblot and found to be reactive against Frequenin at a dilution of 1:5000 followed by reaction with Peroxidase conjugated Affinity Purified anti-Rabbit IgG [H&L] (Goat) code #611-1302. Anti-Frequenin is suitable for the detection by immunoblot of human, mouse and rat Frequenin. Anti-Frequenin has also been tested for use in IF using Hippocampal neurons of 17 day old NMRI mice.