Hmdb loader
Identification
HMDB Protein ID HMDBP09188
Secondary Accession Numbers
  • 14946
Name Polyprenol reductase
Synonyms
  1. 3-oxo-5-alpha-steroid 4-dehydrogenase 3
  2. S5AR 3
  3. SR type 3
  4. Steroid 5-alpha-reductase 2-like
  5. Steroid 5-alpha-reductase 3
Gene Name SRD5A3
Protein Type Enzyme
Biological Properties
General Function Involved in oxidoreductase activity, acting on the CH-CH group of donors
Specific Function Plays a key role in early steps of protein N-linked glycosylation by being required for the conversion of polyprenol into dolichol. Dolichols are required for the synthesis of dolichol-linked monosaccharides and the oligosaccharide precursor used for N-glycosylation. Acts as a polyprenol reductase that promotes the reduction of the alpha-isoprene unit of polyprenols into dolichols in a NADP-dependent mechanism. Also able to convert testosterone (T) into 5-alpha-dihydrotestosterone (DHT).
Pathways
  • protein glycosylation
  • Steroid hormone biosynthesis
Reactions
Ditrans,polycis-dolichol + NADP → ditrans,polycis-polyprenol + NADPH details
A 3-oxo-5-alpha-steroid + NADP → a 3-oxo-Delta(4)-steroid + NADPH details
Androstanedione + Acceptor → Androstenedione + Reduced acceptor details
Dihydrotestosterone + Acceptor → Testosterone + Reduced acceptor details
GO Classification
Biological Process
protein glycosylation
dolichol-linked oligosaccharide biosynthetic process
dolichol metabolic process
polyprenol catabolic process
androgen biosynthetic process
Cellular Component
endoplasmic reticulum membrane
integral to membrane
Component
cell part
intracellular part
cytoplasm
membrane part
intrinsic to membrane
integral to membrane
Function
oxidoreductase activity, acting on the ch-ch group of donors
catalytic activity
oxidoreductase activity
Molecular Function
oxidoreductase activity, acting on the CH-CH group of donors, NAD or NADP as acceptor
3-oxo-5-alpha-steroid 4-dehydrogenase activity
cholestenone 5-alpha-reductase activity
Process
metabolic process
primary metabolic process
lipid metabolic process
Cellular Location
  1. Endoplasmic reticulum membrane
  2. Multi-pass membrane protein (Probable)
Gene Properties
Chromosome Location 4
Locus 4q12
SNPs SRD5A3
Gene Sequence
>957 bp
ATGGCTCCCTGGGCGGAGGCCGAGCACTCGGCGCTGAACCCGCTGCGCGCGGTGTGGCTC
ACGCTGACCGCCGCCTTCCTGCTGACCCTACTGCTGCAGCTCCTGCCGCCCGGCCTGCTC
CCGGGCTGCGCGATCTTCCAGGACCTGATCCGCTATGGGAAAACCAAGTGTGGGGAGCCG
TCGCGCCCCGCCGCCTGCCGAGCCTTTGATGTCCCCAAGAGATATTTTTCCCACTTTTAT
ATCATCTCAGTGCTGTGGAATGGCTTCCTGCTTTGGTGCCTTACTCAATCTCTGTTCCTG
GGAGCACCTTTTCCAAGCTGGCTTCATGGTTTGCTCAGAATTCTCGGGGCGGCACAGTTC
CAGGGAGGGGAGCTGGCACTGTCTGCATTCTTAGTGCTAGTATTTCTGTGGCTGCACAGC
TTACGAAGACTCTTCGAGTGCCTCTACGTCAGTGTCTTCTCCAATGTCATGATTCACGTC
GTGCAGTACTGTTTTGGACTTGTCTATTATGTCCTTGTTGGCCTAACTGTGCTGAGCCAA
GTGCCAATGGATGGCAGGAATGCCTACATAACAGGGAAAAATCTATTGATGCAAGCACGG
TGGTTCCATATTCTTGGGATGATGATGTTCATCTGGTCATCTGCCCATCAGTATAAGTGC
CATGTTATTCTCGGCAATCTCAGGAAAAATAAAGCAGGAGTGGTCATTCACTGTAACCAC
AGGATCCCATTTGGAGACTGGTTTGAATATGTTTCTTCCCCTAACTACTTAGCAGAGCTG
ATGATCTACGTTTCCATGGCCGTCACCTTTGGGTTCCACAACTTAACTTGGTGGCTAGTG
GTGACAAATGTCTTCTTTAATCAGGCCCTGTCTGCCTTTCTCAGCCACCAATTCTACAAA
AGCAAATTTGTCTCTTACCCGAAGCATAGGAAAGCTTTCCTACCATTTTTGTTTTAA
Protein Properties
Number of Residues 318
Molecular Weight 36521.005
Theoretical pI 9.391
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Probable polyprenol reductase
MAPWAEAEHSALNPLRAVWLTLTAAFLLTLLLQLLPPGLLPGCAIFQDLIRYGKTKCGEP
SRPAACRAFDVPKRYFSHFYIISVLWNGFLLWCLTQSLFLGAPFPSWLHGLLRILGAAQF
QGGELALSAFLVLVFLWLHSLRRLFECLYVSVFSNVMIHVVQYCFGLVYYVLVGLTVLSQ
VPMDGRNAYITGKNLLMQARWFHILGMMMFIWSSAHQYKCHVILGNLRKNKAGVVIHCNH
RIPFGDWFEYVSSPNYLAELMIYVSMAVTFGFHNLTWWLVVTNVFFNQALSAFLSHQFYK
SKFVSYPKHRKAFLPFLF
GenBank ID Protein 13375785
UniProtKB/Swiss-Prot ID Q9H8P0
UniProtKB/Swiss-Prot Entry Name PORED_HUMAN
PDB IDs Not Available
GenBank Gene ID NM_024592.3
GeneCard ID SRD5A3
GenAtlas ID SRD5A3
HGNC ID HGNC:25812
References
General References
  1. 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. [PubMed:14702039 ]
  2. Hillier LW, Graves TA, Fulton RS, Fulton LA, Pepin KH, Minx P, Wagner-McPherson C, Layman D, Wylie K, Sekhon M, Becker MC, Fewell GA, Delehaunty KD, Miner TL, Nash WE, Kremitzki C, Oddy L, Du H, Sun H, Bradshaw-Cordum H, Ali J, Carter J, Cordes M, Harris A, Isak A, van Brunt A, Nguyen C, Du F, Courtney L, Kalicki J, Ozersky P, Abbott S, Armstrong J, Belter EA, Caruso L, Cedroni M, Cotton M, Davidson T, Desai A, Elliott G, Erb T, Fronick C, Gaige T, Haakenson W, Haglund K, Holmes A, Harkins R, Kim K, Kruchowski SS, Strong CM, Grewal N, Goyea E, Hou S, Levy A, Martinka S, Mead K, McLellan MD, Meyer R, Randall-Maher J, Tomlinson C, Dauphin-Kohlberg S, Kozlowicz-Reilly A, Shah N, Swearengen-Shahid S, Snider J, Strong JT, Thompson J, Yoakum M, Leonard S, Pearman C, Trani L, Radionenko M, Waligorski JE, Wang C, Rock SM, Tin-Wollam AM, Maupin R, Latreille P, Wendl MC, Yang SP, Pohl C, Wallis JW, Spieth J, Bieri TA, Berkowicz N, Nelson JO, Osborne J, Ding L, Meyer R, Sabo A, Shotland Y, Sinha P, Wohldmann PE, Cook LL, Hickenbotham MT, Eldred J, Williams D, Jones TA, She X, Ciccarelli FD, Izaurralde E, Taylor J, Schmutz J, Myers RM, Cox DR, Huang X, McPherson JD, Mardis ER, Clifton SW, Warren WC, Chinwalla AT, Eddy SR, Marra MA, Ovcharenko I, Furey TS, Miller W, Eichler EE, Bork P, Suyama M, Torrents D, Waterston RH, Wilson RK: Generation and annotation of the DNA sequences of human chromosomes 2 and 4. Nature. 2005 Apr 7;434(7034):724-31. [PubMed:15815621 ]
  3. 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. [PubMed:15489334 ]
  4. Uemura M, Tamura K, Chung S, Honma S, Okuyama A, Nakamura Y, Nakagawa H: Novel 5 alpha-steroid reductase (SRD5A3, type-3) is overexpressed in hormone-refractory prostate cancer. Cancer Sci. 2008 Jan;99(1):81-6. Epub 2007 Nov 6. [PubMed:17986282 ]
  5. Cantagrel V, Lefeber DJ, Ng BG, Guan Z, Silhavy JL, Bielas SL, Lehle L, Hombauer H, Adamowicz M, Swiezewska E, De Brouwer AP, Blumel P, Sykut-Cegielska J, Houliston S, Swistun D, Ali BR, Dobyns WB, Babovic-Vuksanovic D, van Bokhoven H, Wevers RA, Raetz CR, Freeze HH, Morava E, Al-Gazali L, Gleeson JG: SRD5A3 is required for converting polyprenol to dolichol and is mutated in a congenital glycosylation disorder. Cell. 2010 Jul 23;142(2):203-17. doi: 10.1016/j.cell.2010.06.001. Epub 2010 Jul 15. [PubMed:20637498 ]