Q9WUP4 (PORED_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 74.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Polyprenol reductase EC=1.3.1.94 Alternative name(s): 3-oxo-5-alpha-steroid 4-dehydrogenase 3 EC=1.3.1.22 Steroid 5-alpha-reductase 2-like Steroid 5-alpha-reductase 3 Short name=S5AR 3 Short name=SR type 3 | ||||
| Gene names |
| ||||
| Organism | Mus musculus (Mouse) [Reference proteome] | ||||
| Taxonomic identifier | 10090 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus › Mus![]() |
Protein attributes
| Sequence length | 330 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at transcript level |
General annotation (Comments)
| 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). Ref.5 |
| Catalytic activity | Ditrans,polycis-dolichol + NADP+ = ditrans,polycis-polyprenol + NADPH. A 3-oxo-5-alpha-steroid + NADP+ = a 3-oxo-Delta(4)-steroid + NADPH. |
| Pathway | |
| Subcellular location | Endoplasmic reticulum membrane; Multi-pass membrane protein By similarity. |
| Disruption phenotype | Death by E12.5. At E10.5, embryos are smaller and fail to undergo axial rotation observed at E8.5 in wild-types and present dilated hearts and open neural tubes. Ref.5 |
| Sequence similarities | Belongs to the steroid 5-alpha reductase family. Polyprenol reductase subfamily. |
Ontologies
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q9WUP4-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q9WUP4-2) The sequence of this isoform differs from the canonical sequence as follows: 200-330: VYVLGKNLLI...HRKAFLPFLF → GKWPCQ | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 330 | 330 | Polyprenol reductase | PRO_0000317704 | |||||
Regions | |||||||||
| Topological domain | 1 – 16 | 16 | Cytoplasmic Potential | ||||||
| Transmembrane | 17 – 37 | 21 | Helical; Potential | ||||||
| Topological domain | 38 – 80 | 43 | Lumenal Potential | ||||||
| Transmembrane | 81 – 101 | 21 | Helical; Potential | ||||||
| Topological domain | 102 – 132 | 31 | Cytoplasmic Potential | ||||||
| Transmembrane | 133 – 153 | 21 | Helical; Potential | ||||||
| Topological domain | 154 – 169 | 16 | Lumenal Potential | ||||||
| Transmembrane | 170 – 190 | 21 | Helical; Potential | ||||||
| Topological domain | 191 – 206 | 16 | Cytoplasmic Potential | ||||||
| Transmembrane | 207 – 227 | 21 | Helical; Potential | ||||||
| Topological domain | 228 – 277 | 50 | Lumenal Potential | ||||||
| Transmembrane | 278 – 298 | 21 | Helical; Potential | ||||||
| Topological domain | 299 – 330 | 32 | Cytoplasmic Potential | ||||||
Natural variations | |||||||||
| Alternative sequence | 200 – 330 | 131 | VYVLG…LPFLF → GKWPCQ in isoform 2. | VSP_039779 | |||||
Experimental info | |||||||||
| Sequence conflict | 109 | 1 | S → G in AAD30567. Ref.1 | ||||||
| Sequence conflict | 109 | 1 | S → G in AAI45648. Ref.4 | ||||||
| Sequence conflict | 298 | 1 | S → F in AAD30567. Ref.1 | ||||||
| Sequence conflict | 298 | 1 | S → F in AAI45648. Ref.4 | ||||||
Sequences
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References
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AF146793 Genomic DNA. Translation: AAD30567.1. AK040198 mRNA. Translation: BAC30537.1. AK075635 mRNA. Translation: BAC35871.1. AK138681 mRNA. Translation: BAE23745.1. AK139290 mRNA. Translation: BAE23944.1. AK162527 mRNA. Translation: BAE36955.1. AC147239 Genomic DNA. No translation available. BC145647 mRNA. Translation: AAI45648.1. |
| IPI | IPI00221584. IPI00885969. |
| RefSeq | NP_065636.2. NM_020611.4. |
| UniGene | Mm.289446. |
3D structure databases | |
| ProteinModelPortal | Q9WUP4. |
| ModBase | Search... |
PTM databases | |
| PhosphoSite | Q9WUP4. |
Proteomic databases | |
| PaxDb | Q9WUP4. |
| PRIDE | Q9WUP4. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000031143; ENSMUSP00000031143; ENSMUSG00000029233. |
| GeneID | 57357. |
| KEGG | mmu:57357. |
| UCSC | uc008xun.1. mouse. uc008xuo.1. mouse. |
Organism-specific databases | |
| CTD | 79644. |
| MGI | MGI:1930252. Srd5a3. |
Phylogenomic databases | |
| eggNOG | NOG330066. |
| GeneTree | ENSGT00500000044920. |
| HOGENOM | HOG000018885. |
| HOVERGEN | HBG057797. |
| InParanoid | Q3UU82. |
| KO | K12345. |
| OMA | THKWYLQ. |
Enzyme and pathway databases | |
| UniPathway | UPA00378. |
Gene expression databases | |
| ArrayExpress | Q9WUP4. |
| Bgee | Q9WUP4. |
| CleanEx | MM_SRD5A3. |
| Genevestigator | Q9WUP4. |
Family and domain databases | |
| InterPro | IPR001104. 3-oxo-5_a-steroid_4-DH_C. [Graphical view] |
| Pfam | PF02544. Steroid_dh. 1 hit. [Graphical view] |
| PROSITE | PS50244. S5A_REDUCTASE. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 313740. |
| SOURCE | Search... |
Entry information
| Entry name | PORED_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q9WUP4 Secondary accession number(s): D3YZB6 Q8BGE3 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| PATHWAY comments Index of metabolic and biosynthesis pathways |
| SIMILARITY comments Index of protein domains and families |

Clusters with
