Anti-SENP1 Antibody Picoband® (monoclonal, 5F4)

Sentrin-specific protease 1 is a protein that in human is encoded by the SENP1 gene. This gene is mapped to 12q13.11. This gene encodes a cysteine protease that specifically targets members of the small ubiquitin-like modifier (SUMO) protein family. This protease regulates SUMO pathways by deconjugating sumoylated proteins. This protease also functions to process the precursor SUMO proteins into their mature form. Alternate splicing results in multiple transcript variants.

Expressed in a defined zone of basal keratinocytes in the deep outer root sheath of hair follicles. Also observed in sweat gland and mammary gland ductal and secretory cells, bile ducts, gastrointestinal tract, bladder urothelium, oral epithelia, esophagus, ectocervical epithelium (at protein level) . Expressed in epidermal basal cells, in nipple epidermis and a defined region of the hair follicle. Also seen in a subset of vascular wall cells in both the veins and artery of human umbilical cord, and in umbilical cord vascular smooth muscle. Observed in muscle fibers accumulating in the costameres of myoplasm at the sarcolemma in structures that contain dystrophin and spectrin.

Involved in the organization of myofibers. Together with KRT8, helps to link the contractile apparatus to dystrophin at the costameres of striated muscle.

1. Veltman, I. M., Vreede, L. A., Cheng, J., Looijenga, L. H. J., Janssen, B., Schoenmakers, E. F. P. M., Yeh, E. T. H., Geurts van Kessel, A. Fusion of the SUMO/sentrin-specific protease 1 gene SENP1 and the embryonic polarity-related mesoderm development gene MESDC2 in a patient with an infantile teratoma and a constitutional t (12;15) (q13; q25) . Hum. Molec. Genet. 14: 1955-1963, 2005. 2. Yamaguchi, T., Sharma, P., Athanasiou, M., Kumar, A., Yamada, S., Kuehn, M. R. Mutation of SENP1/SuPr-2 reveals an essential role for desumoylation in mouse development. Molec. Cell. Biol. 25: 5171-5182, 2005. 3. Yu, L., Ji, W., Zhang, H., Renda, M. J., He, Y., Lin, S., Cheng, E., Chen, H., Krause, D. S., Min, W. SENP1-mediated GATA1 deSUMOylation is critical for definitive erythropoiesis. J. Exp. Med. 207: 1183-1195, 2010.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.