FLISA plate was coated with Mouse Anti-Rat IgG1-UNLB (SB Cat. No. 3061-01), Mouse Anti-Rat IgG2a-UNLB (SB Cat. No. 3065-01), Mouse Anti-Rat IgG2b-UNLB (SB Cat. No. 3070-01), Mouse Anti-Rat IgG2c-UNLB (SB Cat. No. 3075-01), and Mouse Anti-Rat IgM-UNLB (SB Cat. No. 3080-01). Serially diluted Rat IgG1-PE (SB Cat. No. 0116-09) was captured and fluorescence intensity quantified.