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  4. Recombinant Human 25-hydroxycholesterol 7-alpha-hydroxylase (CYP7B1)

Recombinant Human 25-hydroxycholesterol 7-alpha-hydroxylase (CYP7B1)

  • 中文名稱：
    Recombinant Human 25-hydroxycholesterol 7-alpha-hydroxylase(CYP7B1)
  • 貨號：
    CSB-YP006461HU
  • 規格：
  • 來源：
    Yeast
  • 其他：
  • 中文名稱：
    Recombinant Human 25-hydroxycholesterol 7-alpha-hydroxylase(CYP7B1)
  • 貨號：
    CSB-EP006461HU
  • 規格：
  • 來源：
    E.coli
  • 其他：
  • 中文名稱：
    Recombinant Human 25-hydroxycholesterol 7-alpha-hydroxylase(CYP7B1)
  • 貨號：
    CSB-EP006461HU-B
  • 規格：
  • 來源：
    E.coli
  • 共軛：
    Avi-tag Biotinylated

    E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.

  • 其他：
  • 中文名稱：
    Recombinant Human 25-hydroxycholesterol 7-alpha-hydroxylase(CYP7B1)
  • 貨號：
    CSB-BP006461HU
  • 規格：
  • 來源：
    Baculovirus
  • 其他：
  • 中文名稱：
    Recombinant Human 25-hydroxycholesterol 7-alpha-hydroxylase(CYP7B1)
  • 貨號：
    CSB-MP006461HU
  • 規格：
  • 來源：
    Mammalian cell
  • 其他：

產品詳情

  • 純度：
    >85% (SDS-PAGE)
  • 基因名：
    CYP7B1
  • Uniprot No.：
  • 別名：
    25 hydroxycholesterol 7 alpha hydroxylase; 25-hydroxycholesterol 7-alpha-hydroxylase; CP7B; CP7B1_HUMAN; Cyp7b1; Cytochrome P450 7B1; Cytochrome P450 family 7 subfamily B polypeptide 1; Cytochrome P450 subfamily VIIB polypeptide 1; Oxysterol 7-alpha-hydroxylase; Oxysterol 7alpha hydroxylase
  • 種屬：
    Homo sapiens (Human)
  • 蛋白長度：
    Full length protein
  • 表達區域：
    1-506
  • 氨基酸序列
    MAGEVSAATG RFSLERLGLP GLALAAALLL LALCLLVRRT RRPGEPPLIK GWLPYLGVVL NLRKDPLRFM KTLQKQHGDT FTVLLGGKYI TFILDPFQYQ LVIKNHKQLS FRVFSNKLLE KAFSISQLQK NHDMNDELHL CYQFLQGKSL DILLESMMQN LKQVFEPQLL KTTSWDTAEL YPFCSSIIFE ITFTTIYGKV IVCDNNKFIS ELRDDFLKFD DKFAYLVSNI PIELLGNVKS IREKIIKCFS SEKLAKMQGW SEVFQSRQDV LEKYYVHEDL EIGAHHLGFL WASVANTIPT MFWAMYYLLR HPEAMAAVRD EIDRLLQSTG QKKGSGFPIH LTREQLDSLI CLESSIFEAL RLSSYSTTIR FVEEDLTLSS ETGDYCVRKG DLVAIFPPVL HGDPEIFEAP EEFRYDRFIE DGKKKTTFFK RGKKLKCYLM PFGTGTSKCP GRFFALMEIK QLLVILLTYF DLEIIDDKPI GLNYSRLLFG IQYPDSDVLF RYKVKS
  • 蛋白標簽：
    Tag?type?will?be?determined?during?the?manufacturing?process.
    The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
  • 產品提供形式：
    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.
  • 復溶：
    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℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
  • 儲存條件：
    Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
  • 保質期：
    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.
  • 貨期：
    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.
  • 注意事項：
    Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
  • Datasheet ：
    Please contact us to get it.

產品評價

靶點詳情

  • 功能：
    A cytochrome P450 monooxygenase involved in the metabolism of endogenous oxysterols and steroid hormones, including neurosteroids. Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (CPR; NADPH-ferrihemoprotein reductase). Catalyzes the hydroxylation of carbon hydrogen bonds of steroids with a preference for 7-alpha position. Usually metabolizes steroids carrying a hydroxy group at position 3, functioning as a 3-hydroxy steroid 7-alpha hydroxylase. Hydroxylates oxysterols, including 25-hydroxycholesterol and (25R)-cholest-5-ene-3beta,26-diol toward 7-alpha hydroxy derivatives, which may be transported to the liver and converted to bile acids. Via its product 7-alpha,25-dihydroxycholesterol, a ligand for the chemotactic G protein-coupled receptor GPR183/EBI2, regulates B cell migration in germinal centers of lymphoid organs, thus guiding efficient maturation of plasma B cells and overall antigen-specific humoral immune response. 7-alpha hydroxylates neurosteroids, including 3beta-hydroxyandrost-5-en-17-one (dehydroepiandrosterone) and pregnenolone, both involved in hippocampus-associated memory and learning. Metabolizes androstanoids toward 6- or 7-alpha hydroxy derivatives.
  • 基因功能參考文獻：
    1. SPG11 and CYP7B1 were the most common cause of autosomal recessive hereditary spastic paraplegia in Greece. PMID: 26374131
    2. miR17 induces epithelial-mesenchymal transition consistent with the cancer stem cell phenotype by regulating CYP7B1 expression in colon cancer. PMID: 27278684
    3. The two novel variants cosegregated with pyramidal signs and autoimmune diseases suggesting that they might be susceptibility factors. PMID: 26370385
    4. Data indicate two novel homozygous mutations (one frameshift and one missense mutation) detected in CYP7B1 (SPG5A), while no disease-causing mutation was identified for PNPLA6 (SPG39) and C19orf12 (SPG43). PMID: 26714052
    5. Data indicated that the two GWAS-defined variants in the CYP7B1 region do not strongly influence HIV-1 infection susceptibility. PMID: 26399852
    6. Using an agnostic omics approach to focus on the association of CWP with body mass index, we have confirmed a steroid hormone association and identified a genetic variant upstream of the CYP genes, which likely controls this response. PMID: 25915148
    7. Spastic paraplegia type 5 has a higher frequency in Taiwanese than in other ethnic groups, associated with a CYP7B1 founder mutation and its phenotype is characterized by pronounced dorsal column sensory loss, with cerebellar ataxia in some patients. PMID: 24641183
    8. The patient was homozygous for a mutation (c.1249C>T) in CYP7B1 that alters a highly conserved residue in oxysterol 7 alpha-hydroxylase previously reported in a family with hereditary spastic paraplegia type 5 PMID: 24658845
    9. enduring sensory ataxia can be a pivotal sign in SPG5, and expands the phenotypic spectrum associated with mutations in CYP7B1 PMID: 24519355
    10. 4 novel mutations described in hereditary spastic paraplegia type 5A: 1 frameshift (c.509 delT p.L170fs), 1 premature stop codon (c.334 C>T p.R112X), 1 amino acid changing (c.440 G>A p.G147D) and 1 duplication (c.945_947 dupGGC p.A316AA) PMID: 24117163
    11. 21-hydroxy-pregnenolone was identified as a new substrate, and overall low activity toward pregnanes could be related to the increased potency of 7-hydroxy derivatives produced by CYP7B1. PMID: 24491228
    12. investigation of CYP7B1-substrate binding modes PMID: 23180418
    13. Description of a homology model for human CYP7B1 that provides valuable information on the active site architecture, along with docking studies that analyzed ligand-binding interactions. PMID: 21541746
    14. Five CYP7B1 mutations, three of which are novel, were identified in four patients with hereditary spastic paraplegia type 5. PMID: 21214876
    15. analysis of the first Japanese patient with an oxysterol 7alpha-hydroxylase deficiency associated with compound heterozygous mutations of the CYP7B1 gene [case report] PMID: 21567895
    16. We identifies a Chinese family with hereditary spastic paraplegia due to compound heterozygous mutations in the CYP7B1 gene. PMID: 21452256
    17. In Alzheimer's disease (AD). CYP7B mRNA was significantly decreased (approximately 50% decline; P<0.05) in dentate neurons from AD subjects compared with controls. PMID: 14521990
    18. Promotor activity of the human oxysterol 7alpha-hydroxylase gene is suppressed by sterol response element binding protein. PMID: 15003524
    19. Single polymorphism in the CYP7B1 gene is associated with phenotypic differences in an expression system and a widely different allele frequency in two ethnic populations, with great differences in the incidence of prostate cancer. PMID: 15007371
    20. CYP7B catalyzes oxysterol 7alpha-hydroxylation within the human prostate epithelium and an ERbeta-specific agonist, 7HD, is produced. PMID: 15181079
    21. the 7-hydroxylation catalysed by P4507B1 preferentially takes place on DHEA, 5alpha-androstane-3beta,17beta-diol and epiandrosterone with major and minor formation of 7alpha- and 7beta-hydroxylated derivatives, respectively [cyp7b1] PMID: 15698543
    22. Increased CYP7B activity leads to higher levels of 7alpha-OH-DHEA in synovial fluid which may contribute to the maintenance of chronic inflammation observed in rheumatoid arthritis patients. PMID: 15751070
    23. In particular, the data suggest that androgens may control intraprostatic levels of estrogen via regulation of CYP7B1-mediated metabolism. PMID: 16630558
    24. Presence of both CYP7B1 and 11beta-HSD1 in human skin. PMID: 17467270
    25. Results suggest that -204A/C polymorphism in the CYP7A1 gene does not relate with hypertriglyceridemia but may has an effect on serum triglyceride and apoCIII levels in patients with endogenous HTG. PMID: 17680536
    26. Identification of CYP7B1 as a novel ROTalpha (NR1F1) target gene and a functional cross-talk between RORalpha and liver X receptor (NR1H3). PMID: 18055760
    27. Sequence alterations within CYP7B1 implicate defective cholesterol homeostasis in motor-neuron degeneration. PMID: 18252231
    28. tissue-specific steroid concentrations may have a strong impact on CYP7B1-dependent catalysis and thus on the levels of different CYP7B1-related steroids that can influence estrogen receptor beta signaling PMID: 18331353
    29. regulation of CYP7B1 by ER can be mediated via the PI3K/Akt signal pathway, a regulatory pathway important for cellular survival and growth, suggest an important role for CYP7B1 in cellular growth, particularly in connection with estrogenic signalling. PMID: 18790053
    30. Findings suggest CYP7B1 alterations to represent a rather frequent cause of hereditary spastic paraplegia that should be considered in patients with various clinical presentations. PMID: 18855023
    31. screening of SPG5/CYP7B1 seems to have a low diagnostic yield in autosomal recessive and sporadic cases of spastic paraplegia, even in those with complicated clinical features. PMID: 19187859
    32. we report the first Italian families with SPG5hereditary spastic paraplegia molecular characterization and describe two novel truncating mutations in CYP7B1. PMID: 19363635
    33. Results confirm that CYP7B1 is the gene responsible for Spastic Paraplegia type 5. PMID: 19439420
    34. CYP7B1 has multiple physiological functions and a role in liver failure in children and in neuropathy [review] PMID: 19687010
    35. CYP7B1-mediated catalysis may play a role for control of the cellular levels of androgens, not only of estrogens. PMID: 19732851

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  • 相關疾病：
    Spastic paraplegia 5A, autosomal recessive (SPG5A); Congenital bile acid synthesis defect 3 (CBAS3)
  • 亞細胞定位：
    Endoplasmic reticulum membrane; Multi-pass membrane protein. Microsome membrane; Multi-pass membrane protein.
  • 蛋白家族：
    Cytochrome P450 family
  • 組織特異性：
    Widely expressed. Expressed in brain, testis, ovary, prostate, liver, colon, kidney, small intestine, thymus and spleen.
  • 數據庫鏈接：

    HGNC: 2652

    OMIM: 270800

    KEGG: hsa:9420

    STRING: 9606.ENSP00000310721

    UniGene: Hs.657330



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