Immunogen: A synthetic peptide made to residues 170-185 [VTLIHSQVALADKELL] of the 41 kD human PRG3 protein. This sequence is 87% identical in mouse. Percent identity by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Elephant, Dog (100%); Marmoset, Bat, Horse, Rabbit (94%); Mouse, Rat, Hamster, Bovine, Pig, Platypus (88%); Turkey, Chicken, Stickleback (81%).