Native UchL1/PGP9.5 protein isolated from human brain was used as the immunogen for this anti-UchL1 antibody.
This mAb reacts with a protein of 20-30kDa, identified as PGP9.5, also known as ubiquitin carboxyl-terminal hydrolase-1 (UchL1). Initially, UchL1 expression in normal tissues was reported in neurons and neuroendocrine cells but later it was found in distal renal tubular epithelium, spermatogonia, Leydig cells, oocytes, melanocytes, prostatic secretory epithelium, ejaculatory duct cells, epididymis, mammary epithelial cells, Merkel cells, and dermal fibroblasts. Furthermore, immunostaining for UchL1 has been shown in a wide variety of mesenchymal neoplasms as well. A mutation in the gene is believed to cause a form of Parkinsons disease.