美國抗體生產商Southern Biotech於1982年，由UAB細胞免疫專家Dr. Max Cooper與實驗室成員共同創立。SouthernBiotech致力於生產高品質二級抗體，目前除了一般常見的多株與單株二級抗體外，還帶有螢光物質（FITC、Spectral Red、Alexa 488、Alexa 647、Pacific Blue）、酵素（HRP、AP）、Low Endotoxin/Azide Free（LE/AF）等標定，以及F(ab)和F(ab’)2等抗體片段。諸如此類多樣化產品，協助各種實驗進行。

Isotype Controls
Canine IgG Isotype Control	Mouse IgG1 Isotype Control
Chicken IgY Isotype Control	Mouse IgG2a Isotype Control
Donkey IgG Isotype Control	Mouse IgG2b Isotype Control
Goat F(ab’)2 IgG Isotype Control	Mouse IgG2c Isotype Control
Goat IgG Fab Isotype Control	Mouse IgG3 Isotype Control
Goat IgG Fc Isotype Control	Mouse IgM Isotype Control
Goat IgG Isotype Control	Rabbit F(ab’)2 IgG Isotype Control
Hamster IgG Isotype Control	Rabbit IgG Isotype Control
Human IgA Kappa Isotype Control	Rabbit IgM Isotype Control
Human IgA Lambda Isotype Control	Rat IgG Isotype Control
Human IgG Fc Isotype Control	Rat IgG1 Isotype Control
Human IgG Isotype Control	Rat IgG2a Isotype Control
Human IgG1 Kappa Isotype Control	Rat IgG2b Isotype Control
Human IgG1 Lambda Isotype Control	Rat IgG2b Isotype Control
Human IgG3 Lambda Isotype Control	Rat IgG2c Isotype Control
Human IgM Lambda Isotype Control	Rat IgM Isotype Control
Mouse F(ab’)2 IgG1 Isotype Control	Rhesus Monkey IgG Isotype Control
Mouse IgA Isotype Control	Sheep IgG Isotype Control
Mouse IgE Isotype Control	Swine IgG Isotype Control
Mouse IgG Isotype Control