O14756 (H17B6_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 110.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: 17-beta-hydroxysteroid dehydrogenase type 6 Short name=17-beta-HSD 6 Short name=17-beta-HSD6 EC=1.1.1.105 EC=1.1.1.239 EC=1.1.1.62 Alternative name(s): 3-alpha->beta-hydroxysteroid epimerase Short name=3-alpha->beta-HSE Oxidative 3-alpha hydroxysteroid dehydrogenase | ||||
| Gene names |
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| Organism | Homo sapiens (Human) [Reference proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 317 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | NAD-dependent oxidoreductase with broad substrate specificity that shows both oxidative and reductive activity (in vitro). Has 17-beta-hydroxysteroid dehydrogenase activity towards various steroids (in vitro). Converts 5-alpha-androstan-3-alpha,17-beta-diol to androsterone and estradiol to estrone (in vitro). Has 3-alpha-hydroxysteroid dehydrogenase activity towards androsterone (in vitro). Has retinol dehydrogenase activity towards all-trans-retinol (in vitro). Can convert androsterone to epi-androsterone. Androsterone is first oxidized to 5-alpha-androstane-3,17-dione and then reduced to epi-andosterone. Can act on both C-19 and C-21 3-alpha-hydroxysteroids. Ref.2 Ref.4 Ref.5 |
| Catalytic activity | 17-beta-estradiol + NAD(P)+ = estrone + NAD(P)H. Testosterone + NAD+ = androstenedione + NADH. All-trans-retinol-[cellular-retinol-binding-protein] + NAD+ = all-trans-retinal-[cellular-retinol-binding-protein] + NADH. |
| Subcellular location | Microsome membrane; Peripheral membrane protein; Lumenal side. Early endosome membrane; Peripheral membrane protein; Lumenal side Potential Ref.4. |
| Tissue specificity | Detected in liver and prostate (at protein level). Detected in adult liver, lung, brain, placenta, prostate, adrenal gland, testis, mammary gland, spleen, spinal cord and uterus. Detected in caudate nucleus, and at lower levels in amygdala, corpus callosum, hippocampus, substantia nigra and thalamus. Detected in fetal lung, liver and brain. Ref.1 Ref.2 |
| Sequence similarities | Belongs to the short-chain dehydrogenases/reductases (SDR) family. |
| Biophysicochemical properties | Kinetic parameters: The kinetic parameters were determined using microsomes from transfected cells. KM=0.19 µM for NAD Ref.2 Ref.4 KM=0.18 µM for NADH KM=54 µM for NADPH KM=940 µM for NADP KM=3.2 µM for all-trans-retinol KM=0.24 µM for allopregnanolone KM=0.13 µM for 3-alpha-androstanediol KM=0.23 µM for androsterone KM=0.13 µM for dehydroepiandrosterone Vmax=1.2 nmol/min/mg enzyme with all-trans-retinol Vmax=14.7 nmol/min/mg enzyme with allopregnanolone Vmax=16.5 nmol/min/mg enzyme with 3-alpha-androstanediol Vmax=35 nmol/min/mg enzyme with androsterone Vmax=0.90 nmol/min/mg enzyme with dehydroepiandrosterone |
| Sequence caution | The sequence AAB88252.1 differs from that shown. Reason: Frameshift at positions 158 and 174. |
Ontologies
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 17 | 17 | Potential | ||||||
| Chain | 18 – 317 | 300 | 17-beta-hydroxysteroid dehydrogenase type 6 | PRO_0000303211 | |||||
Regions | |||||||||
| Nucleotide binding | 33 – 57 | 25 | NAD By similarity | ||||||
Sites | |||||||||
| Active site | 176 | 1 | Proton acceptor By similarity | ||||||
| Binding site | 164 | 1 | Substrate Potential | ||||||
Amino acid modifications | |||||||||
| Glycosylation | 161 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 215 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 256 | 1 | N-linked (GlcNAc...) Potential | ||||||
Experimental info | |||||||||
| Sequence conflict | 63 | 1 | E → D in AAB88252. Ref.1 | ||||||
| Sequence conflict | 105 | 1 | G → R in AAB88252. Ref.1 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Expression cloning and characterization of oxidative 17beta- and 3alpha-hydroxysteroid dehydrogenases from rat and human prostate." Biswas M.G., Russell D.W. J. Biol. Chem. 272:15959-15966(1997) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA], TISSUE SPECIFICITY. Tissue: Prostate. |
| [2] | "Molecular characterization of a first human 3(alpha-->beta)-hydroxysteroid epimerase." Huang X.-F., Luu-The V. J. Biol. Chem. 275:29452-29457(2000) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA], FUNCTION, BIOPHYSICOCHEMICAL PROPERTIES, TISSUE SPECIFICITY. Tissue: Liver. |
| [3] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Lung. |
| [4] | "Further characterization of human microsomal 3alpha-hydroxysteroid dehydrogenase." Chetyrkin S.V., Hu J., Gough W.H., Dumaual N., Kedishvili N.Y. Arch. Biochem. Biophys. 386:1-10(2001) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, BIOPHYSICOCHEMICAL PROPERTIES, SUBCELLULAR LOCATION. |
| [5] | "Gene structure, chromosomal localization and analysis of 3-ketosteroid reductase activity of the human 3(alpha-->beta)-hydroxysteroid epimerase." Huang X.-F., Luu-The V. Biochim. Biophys. Acta 1520:124-130(2001) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | U89281 mRNA. Translation: AAB88252.1. Frameshift. AF016509 mRNA. Translation: AAB67236.1. AF223225 mRNA. Translation: AAF81017.1. BC020710 mRNA. Translation: AAH20710.1. |
| IPI | IPI00099595. |
| RefSeq | NP_003716.2. NM_003725.2. |
| UniGene | Hs.524513. |
3D structure databases | |
| HSSP | HSSP built from PDB template 1FDS based on UniProtKB P14061. |
| ProteinModelPortal | O14756. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | 9606.ENSP00000318631. |
PTM databases | |
| PhosphoSite | O14756. |
Proteomic databases | |
| PaxDb | O14756. |
| PRIDE | O14756. |
Protocols and materials databases | |
| DNASU | 8630. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000322165; ENSP00000318631; ENSG00000025423. ENST00000554150; ENSP00000452273; ENSG00000025423. ENST00000554643; ENSP00000451406; ENSG00000025423. ENST00000555159; ENSP00000450698; ENSG00000025423. ENST00000555805; ENSP00000451753; ENSG00000025423. |
| GeneID | 8630. |
| KEGG | hsa:8630. |
| UCSC | uc001smg.1. human. |
Organism-specific databases | |
| CTD | 8630. |
| GeneCards | GC12P057157. |
| HGNC | HGNC:23316. HSD17B6. |
| MIM | 606623. gene. |
| neXtProt | NX_O14756. |
| PharmGKB | PA142671671. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | COG1028. |
| HOVERGEN | HBG005482. |
| InParanoid | O14756. |
| KO | K13369. |
| OMA | PITLCEW. |
| OrthoDB | EOG4STS56. |
| PhylomeDB | O14756. |
Gene expression databases | |
| ArrayExpress | O14756. |
| Bgee | O14756. |
| CleanEx | HS_HSD17B6. |
| Genevestigator | O14756. |
Family and domain databases | |
| Gene3D | 3.40.50.720. 1 hit. |
| InterPro | IPR002198. DH_sc/Rdtase_SDR. IPR002347. Glc/ribitol_DH. IPR016040. NAD(P)-bd_dom. IPR020904. Sc_DH/Rdtase_CS. [Graphical view] |
| Pfam | PF00106. adh_short. 1 hit. [Graphical view] |
| PRINTS | PR00081. GDHRDH. PR00080. SDRFAMILY. |
| PROSITE | PS00061. ADH_SHORT. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| DrugBank | DB00139. Succinic acid. |
| GenomeRNAi | 8630. |
| NextBio | 32349. |
| SOURCE | Search... |
Entry information
| Entry name | H17B6_HUMAN | ||||||||
| Accession | Primary (citable) accession number: O14756 Secondary accession number(s): O43275 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 12 Human chromosome 12: entries, gene names and cross-references to MIM |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
