Cell Signaling Technology's Ubiquitin (E6K4Y) XP ® Rabbit mAb (BSA and Azide Free) is a Rabbit monoclonal antibody. The Ubiquitin (E6K4Y) XP ® Rabbit mAb (BSA and Azide Free) Antibody was generated using RPS27A, UBA52, UBB, UBC, and ubiquitin B as the antigen. It reacts with Homo Sapiens, Human, Mouse, Rat, Amoeba/Protozoa, Bacteria/Archaea, Bovine, C. elegans/Worm, Canine, Chicken/Bird, Donkey, Drosophila/Arthropod, Feline, Goat, Guinea Pig, Hamster, Horse, Mollusc, Non-Human Primate, Plant, Porcine, Reptile, Rabbit, Sheep, Virus, Xenopus/Amphibian, Yeast/Fungi, Zebrafish/Fish, Other Invertebrate, and Other Mammalian. This antibody has been shown to work in applications such as: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.