Name3-oxo-5-alpha-steroid 4-dehydrogenase 1
Synonyms
  • 1.3.1.22
  • S5AR 1
  • SR type 1
  • Steroid 5-alpha-reductase 1
Gene NameSRD5A1
OrganismHuman
Amino acid sequence
>lcl|BSEQ0010375|3-oxo-5-alpha-steroid 4-dehydrogenase 1
MATATGVAEERLLAALAYLQCAVGCAVFARNRQTNSVYGRHALPSHRLRVPARAAWVVQE
LPSLALPLYQYASESAPRLRSAPNCILLAMFLVHYGHRCLIYPFLMRGGKPMPLLACTMA
IMFCTCNGYLQSRYLSHCAVYADDWVTDPRFLIGFGLWLTGMLINIHSDHILRNLRKPGD
TGYKIPRGGLFEYVTAANYFGEIMEWCGYALASWSVQGAAFAFFTFCFLSGRAKEHHEWY
LRKFEEYPKFRKIIIPFLF
Number of residues259
Molecular Weight29458.18
Theoretical pI9.07
GO Classification
Functions
  • 3-oxo-5-alpha-steroid 4-dehydrogenase activity
  • cholestenone 5-alpha-reductase activity
  • electron carrier activity
Processes
  • androgen biosynthetic process
  • sex determination
  • sex differentiation
  • small molecule metabolic process
  • cell differentiation
  • steroid metabolic process
Components
  • endoplasmic reticulum membrane
  • integral component of membrane
General FunctionElectron carrier activity
Specific FunctionConverts testosterone into 5-alpha-dihydrotestosterone and progesterone or corticosterone into their corresponding 5-alpha-3-oxosteroids. It plays a central role in sexual differentiation and androgen physiology.
Pfam Domain Function
Transmembrane Regions12-29 86-106 111-131 151-171 209-229
GenBank Protein ID177767
UniProtKB IDP18405
UniProtKB Entry NameS5A1_HUMAN
Cellular LocationMicrosome membrane
Gene sequence
>lcl|BSEQ0010376|3-oxo-5-alpha-steroid 4-dehydrogenase 1 (SRD5A1)
ATGGCAACGGCGACGGGGGTGGCGGAGGAGCGCCTGCTGGCCGCGCTCGCCTACCTGCAG
TGCGCCGTGGGCTGCGCGGTCTTCGCGCGCAATCGTCAGACGAACTCAGTGTACGGCCGC
CACGCGCTGCCCAGCCACAGGCTCCGAGTGCCGGCGCGGGCCGCCTGGGTGGTGCAGGAG
CTGCCCTCGCTGGCCCTGCCGCTCTACCAGTACGCCAGCGAGTCCGCCCCGCGTCTCCGC
AGCGCGCCCAACTGCATCCTCCTGGCCATGTTCCTCGTCCACTACGGGCATCGGTGCTTA
ATTTACCCATTTCTGATGCGAGGAGGAAAGCCTATGCCACTGTTGGCGTGTACAATGGCG
ATTATGTTCTGTACCTGTAACGGCTATTTGCAAAGCAGATACTTGAGCCATTGTGCAGTG
TATGCTGATGACTGGGTAACAGATCCCCGTTTTCTAATAGGTTTTGGCTTGTGGTTAACG
GGCATGTTGATAAACATCCATTCAGATCATATCCTAAGGAATCTCAGAAAACCAGGAGAT
ACTGGATACAAAATACCAAGGGGAGGCTTATTTGAATACGTAACTGCAGCCAACTATTTT
GGAGAAATCATGGAGTGGTGTGGCTATGCCCTGGCCAGCTGGTCTGTCCAAGGCGCGGCT
TTTGCTTTCTTCACGTTTTGTTTTTTATCTGGTAGAGCAAAAGAGCATCATGAGTGGTAC
CTCCGGAAATTTGAAGAGTATCCAAAGTTCAGAAAAATTATAATTCCATTTTTGTTTTAA
GenBank Gene IDM32313
GeneCard IDNot Available
GenAtlas IDSRD5A1
HGNC IDHGNC:11284
Chromosome Location5
Locus5p15
References
  1. Andersson S, Russell DW: Structural and biochemical properties of cloned and expressed human and rat steroid 5 alpha-reductases. Proc Natl Acad Sci U S A. 1990 May;87(10):3640-4. 2339109
  2. Jenkins EP, Hsieh CL, Milatovich A, Normington K, Berman DM, Francke U, Russell DW: Characterization and chromosomal mapping of a human steroid 5 alpha-reductase gene and pseudogene and mapping of the mouse homologue. Genomics. 1991 Dec;11(4):1102-12. 1686016
  3. Hu RM, Han ZG, Song HD, Peng YD, Huang QH, Ren SX, Gu YJ, Huang CH, Li YB, Jiang CL, Fu G, Zhang QH, Gu BW, Dai M, Mao YF, Gao GF, Rong R, Ye M, Zhou J, Xu SH, Gu J, Shi JX, Jin WR, Zhang CK, Wu TM, Huang GY, Chen Z, Chen MD, Chen JL: Gene expression profiling in the human hypothalamus-pituitary-adrenal axis and full-length cDNA cloning. Proc Natl Acad Sci U S A. 2000 Aug 15;97(17):9543-8. 10931946
  4. Ota T, Suzuki Y, Nishikawa T, Otsuki T, Sugiyama T, Irie R, Wakamatsu A, Hayashi K, Sato H, Nagai K, Kimura K, Makita H, Sekine M, Obayashi M, Nishi T, Shibahara T, Tanaka T, Ishii S, Yamamoto J, Saito K, Kawai Y, Isono Y, Nakamura Y, Nagahari K, Murakami K, Yasuda T, Iwayanagi T, Wagatsuma M, Shiratori A, Sudo H, Hosoiri T, Kaku Y, Kodaira H, Kondo H, Sugawara M, Takahashi M, Kanda K, Yokoi T, Furuya T, Kikkawa E, Omura Y, Abe K, Kamihara K, Katsuta N, Sato K, Tanikawa M, Yamazaki M, Ninomiya K, Ishibashi T, Yamashita H, Murakawa K, Fujimori K, Tanai H, Kimata M, Watanabe M, Hiraoka S, Chiba Y, Ishida S, Ono Y, Takiguchi S, Watanabe S, Yosida M, Hotuta T, Kusano J, Kanehori K, Takahashi-Fujii A, Hara H, Tanase TO, Nomura Y, Togiya S, Komai F, Hara R, Takeuchi K, Arita M, Imose N, Musashino K, Yuuki H, Oshima A, Sasaki N, Aotsuka S, Yoshikawa Y, Matsunawa H, Ichihara T, Shiohata N, Sano S, Moriya S, Momiyama H, Satoh N, Takami S, Terashima Y, Suzuki O, Nakagawa S, Senoh A, Mizoguchi H, Goto Y, Shimizu F, Wakebe H, Hishigaki H, Watanabe T, Sugiyama A, Takemoto M, Kawakami B, Yamazaki M, Watanabe K, Kumagai A, Itakura S, Fukuzumi Y, Fujimori Y, Komiyama M, Tashiro H, Tanigami A, Fujiwara T, Ono T, Yamada K, Fujii Y, Ozaki K, Hirao M, Ohmori Y, Kawabata A, Hikiji T, Kobatake N, Inagaki H, Ikema Y, Okamoto S, Okitani R, Kawakami T, Noguchi S, Itoh T, Shigeta K, Senba T, Matsumura K, Nakajima Y, Mizuno T, Morinaga M, Sasaki M, Togashi T, Oyama M, Hata H, Watanabe M, Komatsu T, Mizushima-Sugano J, Satoh T, Shirai Y, Takahashi Y, Nakagawa K, Okumura K, Nagase T, Nomura N, Kikuchi H, Masuho Y, Yamashita R, Nakai K, Yada T, Nakamura Y, Ohara O, Isogai T, Sugano S: Complete sequencing and characterization of 21,243 full-length human cDNAs. Nat Genet. 2004 Jan;36(1):40-5. Epub 2003 Dec 21. 14702039
  5. Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. 15489334
  6. Eminovic I, Liovic M, Prezelj J, Kocijancic A, Rozman D, Komel R: New steroid 5alpha-reductase type I (SRD5A1) homologous sequences on human chromosomes 6 and 8. Pflugers Arch. 2001;442(6 Suppl 1):R187-9. 11678334
  7. Van Damme P, Lasa M, Polevoda B, Gazquez C, Elosegui-Artola A, Kim DS, De Juan-Pardo E, Demeyer K, Hole K, Larrea E, Timmerman E, Prieto J, Arnesen T, Sherman F, Gevaert K, Aldabe R: N-terminal acetylome analyses and functional insights of the N-terminal acetyltransferase NatB. Proc Natl Acad Sci U S A. 2012 Jul 31;109(31):12449-54. doi: 10.1073/pnas.1210303109. Epub 2012 Jul 18. 22814378