Recombinant Human Aldo-keto reductase family 1 member C4 (AKR1C4)

Code CSB-EP001545HU
MSDS
Size $224
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
  • Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CSB-EP001545HU could indicate that this peptide derived from E.coli-expressed Homo sapiens (Human) AKR1C4.
  • Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CSB-EP001545HU could indicate that this peptide derived from E.coli-expressed Homo sapiens (Human) AKR1C4.
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Product Details

Purity
Greater than 90% as determined by SDS-PAGE.
Target Names
AKR1C4
Uniprot No.
Research Area
Signal Transduction
Alternative Names
3 alpha HSD1; 3-alpha-HSD1; 3-alpha-hydroxysteroid dehydrogenase type I; AK1C4_HUMAN; AKR1C4; Aldo keto reductase family 1 member C4; Aldo-keto reductase family 1 member C4; CDR; Chlordecone reductase; DD-4; DD4; Dihydrodiol dehydrogenase 4; HAKRA; HSD3a
Species
Homo sapiens (Human)
Source
E.coli
Expression Region
1-323aa
Target Protein Sequence
MDPKYQRVELNDGHFMPVLGFGTYAPPEVPRNRAVEVTKLAIEAGFRHIDSAYLYNNEEQVGLAIRSKIADGSVKREDIFYTSKLWCTFFQPQMVQPALESSLKKLQLDYVDLYLLHFPMALKPGETPLPKDENGKVIFDTVDLSATWEVMEKCKDAGLAKSIGVSNFNCRQLEMILNKPGLKYKPVCNQVECHPYLNQSKLLDFCKSKDIVLVAHSALGTQRHKLWVDPNSPVLLEDPVLCALAKKHKQTPALIALRYQLQRGVVVLAKSYNEQRIRENIQVFEFQLTSEDMKVLDGLNRNYRYVVMDFLMDHPDYPFSDEY
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight
64.1kDa
Protein Length
Full Length
Tag Info
N-terminal GST-tagged
Form
Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.

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Target Background

Function
Cytosolic aldo-keto reductase that catalyzes the NADH and NADPH-dependent reduction of ketosteroids to hydroxysteroids. Liver specific enzyme that acts as NAD(P)(H)-dependent 3-, 17- and 20-ketosteroid reductase on the steroid nucleus and side chain. Displays the ability to catalyze both oxidation and reduction in vitro, but most probably acts as a reductase in vivo since the oxidase activity measured in vitro is inhibited by physiological concentration of NADPH. Acts preferentially as a 3-alpha-hydroxysteroid dehydrogenase (HSD) with a subsidiary 3-beta-HSD activity. Catalyzes efficiently the transformation of the potent androgen 5-alpha-dihydrotestosterone (5alpha-DHT or 17beta-hydroxy-5alpha-androstan-3-one) into the less active form, 5-alpha-androstan-3-alpha,17-beta-diol (3-alpha-diol). Catalyzes the reduction of estrone into 17beta-estradiol but with low efficiency. Metabolizes a broad spectrum of natural and synthetic therapeutic steroid and plays an important role in metabolism of androgens, estrogens, progestereone and conjugated steroids. Catalyzes the biotransformation of the pesticide chlordecone (kepone) to its corresponding alcohol leading to increased biliary excretion of the pesticide and concomitant reduction of its neurotoxicity since bile is the major excretory route.
Gene References into Functions
  1. the present study suggests that AKR1C1, AKR1C2, AKR1C3, and AKR1C4 are closely associated with drug resistance to both CDDP and 5FU, and that mefenamic acid, an inhibitor of AKR1C, restores sensitivity through inhibition of drug-resistance in human cancer cells. PMID: 28259989
  2. Studies indicate that mutations in aldo-keto reductase family 1 (AKR1) enzymes AKR1C1 and AKR1C4 are responsible for sexual development dysgenesis and mutations in AKR1D1 are causative in bile-acid deficiency. PMID: 24189185
  3. In women only, SNPs in AKR1C4 reduced the likelihood of having exhibited paranoid ideation by circa 60%. PMID: 22356824
  4. Low progesterone levels and a cystine to serine change at position 145 in AKR1C4 gene are associated with manic/hypomanic irritability in males PMID: 21570127
  5. role of AKR1C4 in the metabolism of testosterone and progesterone via the 5beta-reductase pathway. PMID: 21521174
  6. Taken together, we conclude that the cell-type-specific expression of DD4 mRNA is regulated by vHNF-1-C. PMID: 12220531
  7. the expression level of DD4 mRNA is cooperatively regulated by the amounts of HNF-1 alpha, HNF-4 alpha and HNF-4 gamma. PMID: 12544512
  8. Impact of mirtazapine on the activity of a key neurosteroidogenic enzyme, the 3alpha-hydroxysteroid dehydrogenase (3alpha-HSD), and on the levels of neuroactive steroids in relation to clinical response in depression. PMID: 16344854
  9. Structure determination of human AKR1C4 and homology modelling of AKR1D1 followed by docking experiments were used to explore active site geometries. PMID: 19013211

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Involvement in disease
46,XY sex reversal 8 (SRXY8)
Subcellular Location
Cytoplasm, cytosol.
Protein Families
Aldo/keto reductase family
Tissue Specificity
Liver specific.
Database Links

HGNC: 387

OMIM: 600451

KEGG: hsa:1109

STRING: 9606.ENSP00000263126

UniGene: Hs.567245

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