| SpCrossreactivity | ERb15-P peptide sequence is 100% identical in mouse, rat, human, monkey, 94% in ovine, pig, canine, and 88% in bovine ER¿1. The sequence is also conserved in rat ER¿2 and the variants of ER¿1/¿2 (ER¿1¿3 & ER¿2¿3). It is not clear, at present, if all of these ER¿ isoforms can be seen and distinguished by this antibody because of very small size differences in various ER¿ isoforms. Antibody crossreactivity in various species and isoform reactivity has not been established |