HSD17B11
Function
Can convert androstan-3-alpha,17-beta-diol (3-alpha-diol) to androsterone in vitro, suggesting that it may participate in androgen metabolism during steroidogenesis. May act by metabolizing compounds that stimulate steroid synthesis and/or by generating metabolites that inhibit it. Has no activity toward DHEA (dehydroepiandrosterone), or A-dione (4-androste-3,17-dione), and only a slight activity toward testosterone to A-dione. Tumor-associated antigen in cutaneous T-cell lymphoma.
Sequence Similarities
Belongs to the short-chain dehydrogenases/reductases (SDR) family. 17-beta-HSD 3 subfamily.
Tissue Specificity
Present at high level in steroidogenic cells such as syncytiotrophoblasts, sebaceous gland, Leydig cells, and granulosa cells of the dominant follicle and corpus luteum. In lung, it is detected in the ciliated epithelium and in acini of adult trachea, in bronchioles, but not in alveoli. In the eye, it is detected in the nonpigmented epithelium of the ciliary body and, at lower level, in the inner nuclear layer of the retina (at protein level). Widely expressed. Highly expressed in retina, pancreas, kidney, liver, lung, adrenal, small intestine, ovary and heart.
Cellular localization
- Endoplasmic reticulum
- Lipid droplet
- Redistributed from the endoplasmic reticulum to lipids droplets in the cell upon induction of lipids droplet formation.
Alternative names
DHRS8, PAN1B, SDR16C2, PSEC0029, UNQ207/PRO233, HSD17B11, Estradiol 17-beta-dehydrogenase 11, 17-beta-hydroxysteroid dehydrogenase 11, 17-beta-hydroxysteroid dehydrogenase XI, Cutaneous T-cell lymphoma-associated antigen HD-CL-03, Dehydrogenase/reductase SDR family member 8, Retinal short-chain dehydrogenase/reductase 2, Short chain dehydrogenase/reductase family 16C member 2, 17-beta-HSD 11, 17bHSD11, 17betaHSD11, 17-beta-HSD XI, 17betaHSDXI, CTCL-associated antigen HD-CL-03, retSDR2