Recombinant Human UDP-glucuronosyltransferase 1-4(UGT1A4)

Code CSB-EP025577HUa2
Size US$2466
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Purity Greater than 90% as determined by SDS-PAGE.
Target Names UGT1A4
Uniprot No. P22310
Research Area Signal Transduction
Alternative Names Bilirubin UDP glucuronosyltransferase isozyme 2; Bilirubin-specific UDPGT isozyme 2; HUG-BR2; UD14_HUMAN; UDP glucuronosyltransferase 1 family polypeptide A4; UDP glycosyltransferase 1 family polypeptide A4; UDP-glucuronosyltransferase 1-4; UDP-glucuronosyltransferase 1-D; UDP-glucuronosyltransferase 1A4; UDPGT 1-4; UDPGT; UGT-1D; UGT1*4; UGT1-04; UGT1.4; UGT1A4; UGT1D
Species Homo sapiens (Human)
Source E.coli
Expression Region 29-534aa
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 73.0kDa
Protein Length Full Length of Mature Protein
Tag Info N-terminal 6xHis-SUMO-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.
and FAQs
Protein FAQs
Storage Condition Store at -20°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 Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
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.

Target Data

Function UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the IX-alpha-C8 and IX-alpha-C12 monoconjugates and diconjugate. Isoform 2 lacks transferase activity but acts as a negative regulator of isoform 1 (By similarity).
Gene References into Functions
  1. Plant steroids competitively inhibited the UGT1A4-catalyzed trifluoperazine glucuronidation reaction suggesting potential for herb-drug interactions to occur. PMID: 27208893
  2. Our findings highlight the influence of UGTT1A4 haplotypes on tamoxifen disposition in Asian breast cancer patients, while genetic variants in UGT2B7 and UGT2B15 appear to be of minor importance. PMID: 27098059
  3. This study aimed to analyze the relationship of UGT2B7 and UGT1A4 polymorphisms with metabolism of valproic acid (VPA) and lamotrigine (LTG) in epileptic children. UGT1A4 L48V polymorphism was not related with the serum concentration of LTG (F=5.328, P=0.006). L48V polymorphism also showed effects on efficacy of LTG (chi2=17.397, P=0.001). PMID: 27795544
  4. No association between non-bullous skin reactions from lamotrigine and heterozygosity of UGT1A4 genetic variants *2(P24T) or *3(L48V) in Norwegian patients. PMID: 28068583
  5. The frequencies of two common UGT1A4 variants, *2 (P24T) and *3 (L48V), and their potential effects on serum concentrations of LTG. PMID: 25492569
  6. Influence of valproic acid concentration and polymorphism of UGT1A4*3, UGT2B7 -161C > T and UGT2B7*2 on serum concentration of lamotrigine in Chinese epileptic children PMID: 26303110
  7. This descriptive study examines correlations between concentrations of tamoxifen's glucuronide metabolites and genotypes UGT1A4, UGT2B7, UGT2B15 and UGT2B17 in 132 patients with estrogen receptor-positive breast cancer under treatment with tamoxifen PMID: 26176234
  8. The association between the UGT1A4 promoter and coding region SNPs and the glucuronidation rates of Tam. PMID: 24917585
  9. Correlation of the UGT1A4 gene polymorphism with serum concentration and therapeutic efficacy of lamotrigine in Han Chinese of Northern China PMID: 24820767
  10. Human UGT1A4 and UGT1A3 conjugate 25-hydroxyvitamin D3. PMID: 24641623
  11. the substrate specificity of UGT2B10, highlighting its preference for tertiary amines with higher affinities and clearance values than those of UGT1A4 and UGT1A3. PMID: 23611809
  12. Present results could be helpful to improve the use of UGT1A4 drug substrates in order to adjust them to the ethnic background of a given population, specifically for Hispanics. PMID: 23277392
  13. study to determine the allelic frequency of two most common defective alleles: UGT1A4*2 and UGT1A4*3 in a Jordanian population PMID: 22367373
  14. Polymorphic glucuronidation of olanzapine by uridine diphosphate glucuronosyltransferase 1A4 (UGT1A4) was investigated retrospectively in patient samples PMID: 22713701
  15. Study identified a large number of genetic variations, including 13 intronic, 39 promoter, as well as 14 exonic polymorphisms, with 10 that lead to amino-acid changes. PMID: 19890225
  16. UGT1A4(P24T) and UGT1A4(L48V) on LTG glucuronidation may lead to interindividual variations in lamotrigine metabolism in vivo PMID: 22047493
  17. The frequencies of the heterozygous alleles for L48V or P24T polymorphisms were 22.4% and 3.8%, respectively. L48V polymorphism was found to decrease the serum lamotrigine concentration in Turkish epilepsy patients on monotherapy or polytherapy. PMID: 21601426
  18. kinetic studies with recombinant UGT1A4 using various substrates: dihydrotestosterone, trans-androsterone, tamoxifen, lamotrigine -- evidence for multiple substrate binding sites PMID: 20007295
  19. Two polymorphisms of the hepatic UGT1A4 protein show a differential metabolic activity toward mutagenic amines and endogenous steroids, altering hepatic metabolism and detoxification. PMID: 15057901
  20. hepatic clearance of trifluoperazine by UGT1A4 did not reach maximum levels until 18.9 years of age PMID: 17556526
  21. AhR-mediated regulation of the human UGT1A4 gene by two xenobiotic response elements and a modulation by single nucleotide polymorphisms is demonstrated PMID: 18433817

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Involvement in disease Gilbert syndrome (GILBS); Crigler-Najjar syndrome 1 (CN1); Crigler-Najjar syndrome 2 (CN2)
Subcellular Location Microsome, Endoplasmic reticulum membrane, Single-pass membrane protein
Protein Families UDP-glycosyltransferase family
Tissue Specificity Isoform 1 and isoform 2 are expressed in liver, kidney, colon and small intestine. Isoform 2 but not isoform 1 is expressed in esophagus. Not expressed in skin.
Database Links

HGNC: 12536

OMIM: 143500

KEGG: hsa:54657

STRING: 9606.ENSP00000362508

UniGene: Hs.554822

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