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1.3.99.5: 3-oxo-5alpha-steroid 4-dehydrogenase (acceptor)

This is an abbreviated version!
For detailed information about 3-oxo-5alpha-steroid 4-dehydrogenase (acceptor), go to the full flat file.

Word Map on EC 1.3.99.5

Reaction

a 3-oxo-5alpha-steroid
+
acceptor
=
a 3-oxo-DELTA4-steroid
 +
reduced acceptor

Synonyms

3-keto-DELTA4-steroid-5 alpha-reductase, 3-ketosteroid-DELTA4(5alpha)-dehydrogenase, 3-oxo-5alpha-steroid DELTA4-dehydrogenase, 3-oxo-steroid-4-ene dehydrogenase, 3-oxosteroid DELTA4-dehydrogenase, 4-ene-3-ketosteroid-5alpha-oxidoreductase, 5 alpha-SR2, 5-alpha reductase II, 5alpha reductase, 5alpha-R, 5alpha-R1, 5alpha-reductase, 5alpha-reductase II, 5alpha-reductase type 1, 5alpha-reductase type 2, 5alpha-reductase type II, 5alpha-reductase type1, 5alpha-reductase type2, 5alphaR1, 5alphaR2, 5AR2, dehydrogenase, 3-oxo-5alphasteroid DELTA4-, DELTA4(5alpha)DH, DELTA4-3-keto steroid 5alpha-reductase, DELTA4-3-ketosteroid 5alpha-oxidoreductase, DELTA4-3-oxo steroid reductase, DELTA4-3-oxosteroid-5alpha-reductase, DELTA4-5alpha-dehydrogenase, NADPH-dependent 5alpha-reductase enzyme, r5alphaR1, S5alphaRI, S5alphaRII, S5AR, SRD5A1, SRD5A2, SRD5alpha, steroid 5-alpha reductase type 2, steroid 5-alpha-reductase type 2, steroid 5alpha-reductase, steroid 5alpha-reductase type 1, steroid 5alpha-reductase type 2, steroid DELTA4-5alpha-reductase, steroid-5alpha-reductase, testosterone 5alpha-reductase, type 1 5alpha-reductase, type 2 5alpha-reductase, type I 5alpha-reductase, type II 5alpha-reductase

ECTree

     1 Oxidoreductases
         1.3 Acting on the CH-CH group of donors
             1.3.99 With unknown physiological acceptors
                1.3.99.5 3-oxo-5alpha-steroid 4-dehydrogenase (acceptor)

Cloned

Cloned on EC 1.3.99.5 - 3-oxo-5alpha-steroid 4-dehydrogenase (acceptor)

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CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
expression in Escherichia coli JM109 carrying pXE25, activity is maximal 18times higher than the activity expressed by induced cells of Comamonas testosteroni. Overexpression in Pseudomonas putida KT2440 using pMMB208 as expression vector, activity is maximaly 264times higher than the activity expressed by induced cells of Comamonas testosteroni
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gene SRD5A2, DNA and amino acid sequence analysis in 6 Korean patients with 5alpha-reductase type 2 deficiency, overview
gene SRD5A2, genotyping of 114 prostate cancer patients and 144 healthy control males for single-nucleotide polymorphisms, A49T and V89L, overview. Individuals with LL genotype show reduction in the progression to a higher tumor stage
phylogenetic analysis of SRD5alpha, overview. SRD5alpha subfamilies include, not only the well-known SRD5alpha type 1, type 2 and type 3, but also the synaptic glycoprotein (GPSN2)/trans-2,3-enoly-CoA reductase group
phylogenetic analysis of SRD5alpha, overview. SRD5alpha subfamilies include, not only the well-known SRD5alpha type 1, type 2 and type 3, but also the synaptic glycoprotein (GPSN2)/trans-2,3-enoly-CoA reductase group. SRD5alpha1 is located on chromosome 5p15 whereas SRD5alpha2 is located on 2p22, and SRD5alpha3 is located at 4q12
quantitative expression analysis of isozymes 5alpha-R1 and 5alpha-R2 in brain
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Srd5a1 DNA and amino acid sequence determination and analysis, expression of Srd5a2 in HEK-293 cells, real-time quantitative RT-PCR expression analysis with higher mRNA levels for Srd5a1 than for Srd5a2
Srd5a2 DNA and amino acid sequence determination and analysis, expression of Srd5a2 in HEK-293 cells, real-time quantitative RT-PCR expression analysis with higher mRNA levels for Srd5a1 than for Srd5a2
sterol regulatory element binding proteins, SREBPs, regulate expression of Srd5a2. 293T cells are transfected with the Srd5a2 promoter-luciferase reporter and flag-pCDNA3.1+ SREBP-2 plasmids. SREBP-2 binds to the promoter for Srd5a2
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transient expression of pTRE-5alphaR1 in LNGK-9 PCa cells. Addition of testosterone increases growth of pTRE-5alphaR1 transfectants by 54.1% over cells grown in the absence of testosterone, compared to 25.0% in control cells. Testosterone also increases secretion of prostate-specific antigen 17fold in the 5alphaR1-transfected cells
Xenopus oocytes are able to synthesize the enzyme, directly by microinjected poly(A)+ RNA prepared from female and male rat liver
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