Anti-HSD17B3 Antibody Picoband® Fluoro488 Conjugated

17β-Hydroxysteroid dehydrogenase 3 (17β-HSD3) is an enzyme that in humans is encoded by the HSD17B3 gene and is involved in androgen steroidogenesis. This isoform of 17 beta-hydroxysteroid dehydrogenase is expressed predominantly in the testis and catalyzes the conversion of androstenedione to testosterone. It preferentially uses NADP as cofactor. Deficiency can result in male pseudohermaphroditism with gynecomastia.

Sodium channel protein type 11 subunit alpha; Peripheral nerve sodium channel 5; PN5; Sensory neuron sodium channel 2; Sodium channel protein type XI subunit alpha; Voltage-gated sodium channel subunit alpha Nav1.9; hNaN; SCN11A; SCN12A, SNS2

A synthetic peptide corresponding to a sequence in the middle region of human HSD17B3, which shares 68.4% amino acid (aa) sequence identity with rat HSD17B3.

Expressed in the dorsal root ganglia and trigeminal ganglia, olfactory bulb, hippocampus, cerebellar cortex, spinal cord, spleen, small intestine and placenta.

This protein mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which sodium ions may pass in accordance with their electrochemical gradient. It is a tetrodotoxin-resistant sodium channel isoform. Also involved, with the contribution of the receptor tyrosine kinase NTRK2, in rapid BDNF-evoked neuronal depolarization.

1. Ademola Akesode, F., Meyer, W. J., III, Migeon, C. J. Male pseudohermaphroditism with gynaecomastia due to testicular 17-ketosteroid reductase deficiency. Clin. Endocr. 7: 443-452, 1977. 2. Andersson, S., Geissler, W. M., Wu, L., Davis, D. L., Grumbach, M. M., New, M. I., Schwarz, H. P., Blethen, S. L., Mendonca, B. B., Bloise, W., Witchel, S. F., Cutler, G. B., Jr., Griffin, J. E., Wilson, J. D., Russell, D. W. Molecular genetics and pathophysiology of 17-beta-hydroxysteroid dehydrogenase 3 deficiency. J. Clin. Endocr. Metab. 81: 130-136, 1996. 3. Bilbao, J. R., Loridan, L., Audi, L., Gonzalo, E., Castano, L. A novel missense (R80W) mutation in 17-beta-hydroxysteroid dehydrogenase type 3 gene associated with male pseudohermaphroditism. Europ. J. Endocr. 139: 330-333, 1998.