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Reviewed, UniProtKB/Swiss-Prot P50171 (DHB8_MOUSE)

Last modified November 25, 2008. Version 75. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (3) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Alternative products · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    Estradiol 17-beta-dehydrogenase 8
    EC=1.1.1.62
Alternative name(s):
    Testosterone 17-beta-dehydrogenase 8
    EC=1.1.1.63
    17-beta-hydroxysteroid dehydrogenase 8
      Short name=17-beta-HSD 8
    Protein Ke6
      Short name=Ke-6
Gene names
Name: Hsd17b8
Synonyms: H2-Ke6, Hke6
OrganismMus musculus (Mouse)
Taxonomic identifier10090 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeMus

Protein attributes

Sequence length260 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is not processed.
Protein existenceEvidence at protein level.

General annotation (Comments)

Function

Uses estradiol as its preferred substrate.

Catalytic activity

Estradiol-17-beta + NAD(P)(+) = estrone + NAD(P)H.

Testosterone + NAD(+) = androst-4-ene-3,17-dione + NADH.

Pathway

Steroid biosynthesis; estrogen biosynthesis.

Tissue specificity

Kidney, liver, testis, ovary, oviduct, uterus, mammary gland, vagina, prostate, clitoral gland and moderately in spleen, heart, dorsal skin, brain and lung.

Sequence similarities

Belongs to the short-chain dehydrogenases/reductases (SDR) family.

Biophysicochemical properties

Kinetic parameters:

KM=0.110 µM for estradiol

KM=0.422 µM for testosterone

KM=0.368 µM for estrone

KM=0.360 µM for dihydrotestosterone

Vmax=0.405 nmol/min/mg enzyme for estradiol as substrate

Vmax=0.123 nmol/min/mg enzyme for testosterone as substrate

Vmax=0.186 nmol/min/mg enzyme for estrone as substrate

Vmax=0.081 nmol/min/mg enzyme for dihydrotestosterone as substrate

Alternative products

This entry describes 2 isoforms produced by alternative splicing. [Align] [Select]
Isoform Short (identifier: P50171-1)

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 Long (identifier: P50171-2)

The sequence of this isoform differs from the canonical sequence as follows:
     257-260: GLFM → MRPSWGGGQENRTQVVMRK

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 260260Estradiol 17-beta-dehydrogenase 8
PRO_0000054599

Regions

Nucleotide binding13 – 3826NAD By similarity

Sites

Active site1681Proton acceptor By similarity
Binding site1551Substrate By similarity

Amino acid modifications

Modified residue671N6-acetyllysine

Natural variations

Alternative sequence257 – 2604GLFM → MRPSWGGGQENRTQVVMRK in isoform Long.
VSP_006030

Experimental info

Sequence conflict161G → GSGVPSQ in AAC69902. Ref.3
Sequence conflict171Missing in AAC53573 and AAC53574. Ref.1
Sequence conflict2301E → EG in AAC53573 and AAC53574. Ref.1

Sequences

Sequence LengthMass (Da)Tools
Isoform Short [UniParc].

Last modified October 1, 1996. Version 1.
Checksum: 19C712FCDD168B08

FASTA26026,645
        10         20         30         40         50         60 
MASQLRLRSA LALVTGGAGS GIGRAISVRL AAEGAAVAAC DLDGAAAQDT VRLLGSPGSE 

        70         80         90        100        110        120 
DGAPRGKHAA FQADVSQGPA ARRLLEEVQA CFSRPPSVVV SCAGITRDEF LLHMSEEDWD 

       130        140        150        160        170        180 
RVIAVNLKGT FLVTQAAAQA LVSSGGRGSI INISSIIGKV GNIGQTNYAS SKAGVIGLTQ 

       190        200        210        220        230        240 
TAARELGRHG IRCNSVLPGF IATPMTQKMP EKVKDKVTAM IPLGHMGDPE DVADVVAFLA 

       250        260 
SEDSGYITGA SVEVSGGLFM 

« Hide

Isoform Long [UniParc].

Checksum: 2351D3A8847F7459
Show »

27528,396

References

« Hide 'large scale' references
[1]"Downregulation of Ke 6, a novel gene encoded within the major histocompatibility complex, in murine polycystic kidney disease."
Aziz N., Maxwell M.M., St Jacques B., Brenner B.M.
Mol. Cell. Biol. 13:1847-1853(1993) [PubMed: 8441417] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
Strain: DBA/2J.
Tissue: Kidney.
[2]Erratum
Aziz N., Maxwell M.M., St Jacques B., Brenner B.M.
Mol. Cell. Biol. 13:6614-6614(1993)
[3]"Ke 6 gene. Sequence and organization and aberrant regulation in murine polycystic kidney disease."
Maxwell M.M., Nearing J., Aziz N.
J. Biol. Chem. 270:25213-25219(1995) [PubMed: 7559658] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
Strain: C57BL/6.
[4]"Sequence of the mouse major histocomaptibility locus class II region."
Rowen L., Qin S., Madan A., Loretz C., James R., Dors M., Mix L., Hall J., Lasky S., Hood L.
Submitted (OCT-1998) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: 129/SvJ.
[5]"Characterization of Ke 6, a new 17beta-hydroxysteroid dehydrogenase, and its expression in gonadal tissues."
Fomitcheva J., Baker M.E., Anderson E., Lee G.Y., Aziz N.
J. Biol. Chem. 273:22664-22671(1998) [PubMed: 9712896] [Abstract]
Cited for: CATALYTIC ACTIVITY, BIOPHYSICOCHEMICAL PROPERTIES.
[6]"Localization of type 8 17beta-hydroxysteroid dehydrogenase mRNA in mouse tissues as studied by in situ hybridization."
Pelletier G., Luu-The V., Li S., Labrie F.
J. Histochem. Cytochem. 53:1257-1271(2005) [PubMed: 15923359] [Abstract]
Cited for: SUBCELLULAR LOCATION.
[7]"Substrate and functional diversity of lysine acetylation revealed by a proteomics survey."
Kim S.C., Sprung R., Chen Y., Xu Y., Ball H., Pei J., Cheng T., Kho Y., Xiao H., Xiao L., Grishin N.V., White M., Yang X.-J., Zhao Y.
Mol. Cell 23:607-618(2006) [PubMed: 16916647] [Abstract]
Cited for: ACETYLATION [LARGE SCALE ANALYSIS] AT LYS-67, MASS SPECTROMETRY.
Tissue: Liver.
+Additional computationally mapped references.

Cross-references

Sequence databases

U34072 Genomic DNA. Translation: AAC53573.1.
U34072 Genomic DNA. Translation: AAC53574.1.
AF100956 Genomic DNA. Translation: AAC69902.1.
PIRA48154.
UniGeneMm.275452

3D structure databases

HSSPHSSP built from PDB template 1GZ6 based on UniProtKB P97852.
ModBaseSearch...

PTM databases

PhosphoSiteP50171.

2-D gel databases

REPRODUCTION-2DPAGEP50171.

Genome annotation databases

EnsemblENSMUSG00000073422. Mus musculus. [Contig view]

Organism-specific databases

MGIMGI:95911. H2-Ke6.

Phylogenomic databases

HOGENOMP50171.
HOVERGENP50171.

Gene expression databases

CleanExMM_H2-KE6.
GermOnlineENSMUSG00000073422. Mus musculus.

Family and domain databases

InterProIPR002198. DHase_sc/Rdtase_SDR.
IPR002347. Glc/ribitol_DHase.
IPR016040. NAD(P)-bd.
[Graphical view]
Gene3DG3DSA:3.40.50.720. NAD(P)-bd. 1 hit.
PANTHERPTHR19410. ADH_short_C2. 1 hit.
PfamPF00106. adh_short. 1 hit.
[Graphical view]
PRINTSPR00081. GDHRDH.
PR00080. SDRFAMILY.
PROSITEPS00061. ADH_SHORT. 1 hit.
[Graphical view]
ProtoNetSearch...

Other Resources

SOURCESearch...

Entry information

Entry nameDHB8_MOUSE
AccessionPrimary (citable) accession number: P50171
Secondary accession number(s): Q60958, Q60959, Q9Z1W2
Entry history
Integrated into UniProtKB/Swiss-Prot: October 1, 1996
Last sequence update: October 1, 1996
Last modified: November 25, 2008
This is version 75 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHPI (Human Proteome Initiative)

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

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Alternative products · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents