Human Cytochrome P450 3A4(CYP3A4) ELISA kit

  • 中文名称:
    人细胞色素P450 3A4(CYP3A4)ELISA kit
  • 货号:
  • 规格:
  • 价格:
  • 其他:


  • 别名:
    1,8-cineole 2-exo-monooxygenase ELISA Kit; Albendazole monooxygenase ELISA Kit; Albendazole sulfoxidase ELISA Kit; CP33 ELISA Kit; CP34 ELISA Kit; CP3A4_HUMAN ELISA Kit; CYP3 ELISA Kit; CYP3A ELISA Kit; CYP3A3 ELISA Kit; CYP3A4 ELISA Kit; CYPIIIA3 ELISA Kit; CYPIIIA4 ELISA Kit; Cytochrome P450 3A3 ELISA Kit; Cytochrome P450 3A4 ELISA Kit; Cytochrome P450 family 3 subfamily A polypeptide 4 ELISA Kit; Cytochrome P450 HLp ELISA Kit; Cytochrome P450 NF-25 ELISA Kit; Cytochrome P450 subfamily IIIA polypeptide 4 ELISA Kit; cytochrome P450, subfamily IIIA (niphedipine oxidase), polypeptide 3 ELISA Kit; cytochrome P450, subfamily IIIA (niphedipine oxidase), polypeptide 4 ELISA Kit; Cytochrome P450-PCN1 ELISA Kit; Glucocorticoid inducible P450 ELISA Kit; HLP ELISA Kit; MGC126680 ELISA Kit; NF 25 ELISA Kit; NF25 ELISA Kit; Nifedipine oxidase ELISA Kit; P450 III steroid inducible ELISA Kit; P450 PCN1 ELISA Kit; P450, family III ELISA Kit; P450C3 ELISA Kit; P450PCN1 ELISA Kit; Quinine 3 monooxygenase ELISA Kit; Quinine 3-monooxygenase ELISA Kit; Taurochenodeoxycholate 6 alpha hydroxylase ELISA Kit; Taurochenodeoxycholate 6-alpha-hydroxylase ELISA Kit
  • 缩写:
  • Uniprot No.:
  • 种属:
    Homo sapiens (Human)
  • 样本类型:
    serum, plasma, tissue homogenates, cell lysates
  • 检测范围:
    23.5 pg/mL-1500 pg/mL
  • 灵敏度:
    5.8 pg/mL
  • 反应时间:
  • 样本体积:
  • 检测波长:
    450 nm
  • 研究领域:
  • 测定原理:
  • 测定方法:
  • 精密度:
    Intra-assay Precision (Precision within an assay): CV%<8%
    Three samples of known concentration were tested twenty times on one plate to assess.
    Inter-assay Precision (Precision between assays): CV%<10%
    Three samples of known concentration were tested in twenty assays to assess.
  • 线性度:
    To assess the linearity of the assay, samples were spiked with high concentrations of human CYP3A4 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
    1:1Average %90
    Range %85-99
    1:2Average %96
    Range %90-102
    1:4Average %97
    Range %89-105
    1:5Average %95
    Range %90-100
  • 回收率:
    The recovery of human CYP3A4 spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
    Sample TypeAverage % RecoveryRange
    Serum (n=5) 9894-103
    EDTA plasma (n=4)9895-100
  • 标准曲线:
    These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
    15002.754 2.791 2.773 2.597
    7502.369 2.394 2.382 2.206
    3751.824 1.789 1.807 1.631
    187.51.057 1.082 1.070 0.894
    940.640 0.647 0.644 0.468
    470.435 0.465 0.450 0.274
    23.50.264 0.278 0.271 0.095
    00.175 0.176 0.176  
  • 货期:
    7-14 working days


  • 功能:
    Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide
  • 基因功能参考文献:
    1. Experimental in silico and in vivo studies confirmed that the original Russian benzodiazepine phenazepam was the substrate of CYP3A4 isoenzyme. PMID: 29727298
    2. Apigenin showed reversible inhibition, acacetin, and chrysin showed combined irreversible and reversible inhibition while chrysin dimethylether, isorhamnetin, pinocembrin, and tangeretin showed pure irreversible inhibition. These results alert on possible flavonoiddrug interactions on the level of CYP3A4 PMID: 30301254
    3. This patient should be regarded as a CYP3A-poor metabolizer. PMID: 29469606
    4. spectroscopic studies clarified the heteroactivation of CYP3A4 caused by efavirenz with a proper affinity to the peripheral site PMID: 29191071
    5. The genetic polymorphisms of the multi-drug resistance-1 (MDR-1) and human cytochrome P450 3A (CYP3A4 and CYP3A5) genes were analyzed and compared between steroid sensitive, steroid resistant and control groups. PMID: 30143489
    6. this meta-analysis suggests that the CYP3A4*1B polymorphism might play a modest role in susceptibility to cancer, especially for leukemia. PMID: 30143500
    7. JNK is a novel mechanistic regulator of CYP3A4 induction by PXR. PMID: 29440179
    8. The other four metabolites were almost exclusively metabolized by CYP3A4. PMID: 29475834
    9. It observed an increase in the activity of CYP3A following but not during pregnancy when measured using the 4beta-hydroxycholesterol/cholesterol ratio. In addition, based on our results, it suggestes that the plasma 4beta-hydroxycholesterol/cholesterol ratio be used to measure CYP3A activity in pregnant women. PMID: 29759884
    10. These findings also suggest that EGF may be an important regulator of CYP3A4 expression in vivo. PMID: 29189189
    11. our results indicate that a significant level of MDR1 mRNA, but not CYP3A4 mRNA, is intrinsically present before chemotherapy in advanced STS tumors. PMID: 29689707
    12. A weak-to-moderate CYP3A4 induction by midostaurin. PMID: 29117990
    13. CYP3A4 *18B and GCK G-30A polymorphisms were related to new-onset diabetes after transplantation (p < 0.05). The lower concentration/dose or fasting serum glucose was in CYP3A4 *1/*1 carriers than that in *18B/*18B carriers in all the renal transplant recipients (p < 0.05), respectively. PMID: 29546446
    14. Data suggest high similarity in mechanisms involved in regulation of expression of pig CYP3A29 and human CYP3A4 in hepatocytes. PMID: 30153482
    15. rs7668282 (UGT2B7, T>C) was more prevalent in sodium valproate (VPA)-resistant patients than drug-responsive patients. rs2242480 (CYP3A4, C>T) and rs10188577 (SCN1A, T>C) were more prevalent in drug-responsive patients compared to drug-resistant patients. In children with generalized seizures on VPA therapy, polymorphisms of UGT2B7, CYP3A4, and SCN1A genes were associated with seizure reduction. PMID: 29679912
    16. There were no significant differences in the bosutinib C0 between genotypes for ABCB1, ABCG2, and CYP3A4 polymorphisms. PMID: 29736778
    17. These results suggest that human and marmoset P450 3A4/90 and 4F12 in livers or small intestines played important roles in terfenadine t-butyl hydroxylation. Marmosets could be a model for humans during first pass extraction of terfenadine and related substrates. PMID: 28436281
    18. This first description of CYP3A4*20 null genotype in liver-transplanted patients, supports the relevance of CYP3A genotyping in tacrolimus therapy PMID: 29256966
    19. We demonstrate for the first time that the effect of ABCB1 diplotype on tacrolimus disposition is dependent on both CYP3A5 and CYP3A4 genotype. PMID: 27378609
    20. Some flavonoids exhibit selective inhibition toward CYP3A4 rather than other major cytochromes. Here, data suggest high risk of herb-drug interactions or food-drug interactions could be caused by flavonoids; vital structural elements of natural flavonoids could lead to interactions with clinical drugs normally eliminated via CYP3A4 metabolism. PMID: 29753067
    21. The mAb concomitantly shifted IL-1beta IC50 values towards CYP3A4 activity. PMID: 28260174
    22. CYP3A4 was identified as a novel tumor suppressor gene related to a poor prognosis in HCC. PMID: 29109094
    23. In CYP3A4, the most energetically favorable docking mode places testosterone in a position with the methyl groups directed toward the heme iron PMID: 28986474
    24. this study indicates that CYP3A activity is regained subsequent to kidney transplantation PMID: 28928137
    25. Younger age, POR*28 allele, and CYP3A5*3 allele were associated with higher cyclosporine dosing requirements and lower concentration/dose ratio. PMID: 29135906
    26. Single nucleotide polymorphism rs4646437 in CYP3A4 at 7q21.1 (p = .0325), associated with alpha-adrenergic receptor antagonist drug effect in Benign Prostatic Hyperplasia. PMID: 28787260
    27. CYP3A4*1B is associated with CsA C0/Dose ratio in renal transplant recipients which indicates patients with CYP3A4*1B allele require lower dose of CsA to reach target blood concentration compared with the CYP3A4*1 carriers.[meta-analysis] PMID: 29678659
    28. The MDR1/CYP3A4/OPRM1 gene polymorphisms influenced the fentanyl consumption and the physiological effects of intravenous analgesia in the Chinese women who received lower segment caesarean section surgeries. PMID: 29601950
    29. Molecular dynamics simulations reveal significantly different modes of interactions of DND and ARVL with the substrate binding pocket and with a peripheral allosteric site. Interactions of both substrates with residues F213 and F219 at the allosteric site play a critical role in the communication of conformational changes induced by effector binding to productive binding of the substrate at the catalytic site. PMID: 29200287
    30. The results of this study suggested that the Prospective assaying of CYP3A-status (CYP3A4 expression, CYP3A5 genotype) may better identify the Alzheimer patients with higher risk of inefficiency or adverse reactions and may facilitate the improvement of personalized clozapine therapy PMID: 28340122
    31. In oral contraceptive users, haplotype A and B in the CYP3A4 gene were associated with venous thrombosis risk, but not in non-users; however, the effect on Sex-hormone-binding-globulin levels was not directional with the risk. PMID: 28579309
    32. The combined CYP3A4 and CYP3A5 genotype of renal transplant recipients has a major influence on the Tacrolimus dose required to reach the target exposure. PMID: 28704257
    33. We solved the 2.7 A crystal structure of the CYP3A4-midazolam (MDZ) complex, where the drug is well defined and oriented suitably for hydroxylation of the C1 atom, the major site of metabolism. This binding mode requires H-bonding to Ser119 and a dramatic conformational switch in the F-G fragment, which transmits to the adjacent helices, resulting in a collapse of the active site cavity and MDZ immobilization. PMID: 28031486
    34. Our results provide information on CYP3A4 polymorphisms in Tibetan individuals which may help to optimize pharmacotherapy effectiveness by providing personalized medicine to this ethnic group. PMID: 28674221
    35. Among two SNPs in CYP3A4 and CYP3A5 and 12 SNPs in ABCB1 gene, an association with ovarian cancer risk was observed for ABCB1 rs2157926 SNP only. PMID: 29491071
    36. Low CYP3A4 Activity is associated with Crohn's Disease. PMID: 28301431
    37. Cryopreserved human hepatocytes can be stored stably for more than a decade with little or no change in CYP3A4/5 induction. PMID: 28411281
    38. Associations between SLCO1B1 521C and cholesterol response were not detected in African Americans (n = 333). Associations between CYP3A4*22 or CYP3A5*3 and cholesterol response were not detected in whites or African Americans. PMID: 28482130
    39. This kdeg value for CYP3A4 was in good agreement with recently reported values. PMID: 28289057
    40. Sorafenib was poorly tolerated, and anti-Kaposi sarcoma (KS)activity was modest. Strong CYP3A4 inhibitors may contribute to sorafenib toxicity, and ritonavir has previously been shown to be a CYP3A4 inhibitor. Alternate antiretroviral agents without predicted interactions should be used when possible for concurrent administration with sorafenib PMID: 28341759
    41. A total of 84.8% of our patients were found to express both the CYP3capital A, Cyrillic5*3*3 genotype and CYP3capital A, Cyrillic4*1*1/*1*1B. Further studies are necessary in order to show the influence of these genetic polymorphisms on tacrolimus blood concentrations. PMID: 29314799
    42. This study has identified 4 synonymous variants in the HCN4 gene and 3 SNPs in the CYP3A4 gene. None of the variants appear to have a major effect on the reduction of HR produced by ivabradine. PMID: 27439367
    43. Methylation status of cytosine in the CYP3A4 proximal promoter correlated with changes in developmental expression of mRNA. PMID: 26772622
    44. Occupancy by modified histones was consistent with chromatin structural changes contributing to the mechanisms regulating CYP3A4 ontogeny. PMID: 26921389
    45. Hydroxyl metabolite (M3) of VX-509 which is formed via the aldehyde oxidase pathway is responsible for CYP3A4 inhibition. PMID: 27298338
    46. CYP3A5 genotype has minimal impact on the probability of quetiapine target attainment of the 1-hour concentrations but a significant impact on the 12-hour concentrations. PMID: 27137148
    47. CYP3A4 expression and N-acetyl transferase 2 acetylator phenotype can better identify the patients with higher risk of adverse reactions and can facilitate the improvement of personalized clonazepam therapy and withdrawal regimen. PMID: 27639091
    48. The dose-dependent FaFg of selective and dual CYP3A and/or P-gp substrates was well predicted. PMID: 27538919
    49. The magnitude of drug-drug interactions (DDIs) for studies with rifampicin and seven CYP3A4 probe substrates. PMID: 27026679
    50. This finding equated to lower cytochrome P450 isoform 3A4 (CYP3A4) EC50 values in the HepatoPac system. PMID: 27655038



  • 亚细胞定位:
    Endoplasmic reticulum membrane, Single-pass membrane protein, Microsome membrane, Single-pass membrane protein
  • 蛋白家族:
    Cytochrome P450 family
  • 组织特异性:
    Expressed in prostate and liver. According to some authors, it is not expressed in brain (PubMed:19094056). According to others, weak levels of expression are measured in some brain locations (PubMed:19359404 and PubMed:18545703). Also expressed in epithe
  • 数据库链接:

    HGNC: 2637

    OMIM: 124010

    KEGG: hsa:1576

    STRING: 9606.ENSP00000337915

    UniGene: Hs.728751