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Recombinant Human Alpha-crystallin B chain (CRYAB)

  • 中文名稱：
    Recombinant Human Alpha-crystallin B chain(CRYAB),Yeast
  • 貨號：
    CSB-YP006008HU
  • 規(guī)格：
  • 來源：
    Yeast
  • 其他：
  • 中文名稱：
    Recombinant Human Alpha-crystallin B chain(CRYAB),Yeast
  • 貨號：
    CSB-EP006008HU-B
  • 規(guī)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 Alpha-crystallin B chain(CRYAB),Yeast
  • 貨號：
    CSB-BP006008HU
  • 規(guī)格：
  • 來源：
    Baculovirus
  • 其他：
  • 中文名稱：
    Recombinant Human Alpha-crystallin B chain(CRYAB),Yeast
  • 貨號：
    CSB-MP006008HU
  • 規(guī)格：
  • 來源：
    Mammalian cell
  • 其他：

產(chǎn)品詳情

  • 純度：
    >85% (SDS-PAGE)
  • 基因名：
  • Uniprot No.：
  • 別名：
    AACRYA; Alpha B crystallin; Alpha crystallin B chain; Alpha(B)-crystallin; Alpha-crystallin B chain; CRYA2; Cryab; CRYAB_HUMAN; Crystallin alpha B; Crystallin alpha polypeptide 2; CTPP2; Heat shock 20 kD like protein; Heat shock protein beta 5; Heat shock protein beta-5; HspB5; Renal carcinoma antigen NY REN 27; Renal carcinoma antigen NY-REN-27; Rosenthal fiber component
  • 種屬：
    Homo sapiens (Human)
  • 蛋白長度：
    Full length protein
  • 表達區(qū)域：
    1-175
  • 氨基酸序列
    MDIAIHHPWI RRPFFPFHSP SRLFDQFFGE HLLESDLFPT STSLSPFYLR PPSFLRAPSW FDTGLSEMRL EKDRFSVNLD VKHFSPEELK VKVLGDVIEV HGKHEERQDE HGFISREFHR KYRIPADVDP LTITSSLSSD GVLTVNGPRK QVSGPERTIP ITREEKPAVT AAPKK
  • 蛋白標(biāo)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(chǎn)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(fù)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(zhì)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(chǎn)品評價

問答及客戶評論

■ 常見問題解答
Q:

Per your product Recombinant Human Alpha-crystallin B chain, please can you:
- confirm that “Free endotoxin removal”, “Aseptic Processing” and “Tag Removal” options are available for this protein. What would be the lead time including this three options?
- have you received any customer feedback about the activity of this protein?

A:
Thanks for your inquiry. Regarding the activity, we are sorry that we have not detected or received any feedback from the customer for the time being. We do not guarantee 100% activity.
In theory, what we provide is the full length of the protein, which is purified through the method of affinity chromatography under a very mild environment and it should theoretically be active.
EP protein has already been successfully developed and it is expressed in the supernatant, and it is highly likely to be active.
Yes, all of these additional services: “Free endotoxin removal”, “Aseptic Processing” and “Tag Removal” are available for this protein, lead time will only be extended for 3 working days based on the regular lead time.
As for the tag removal service, we can guarantee the C-terminal tag can be 100% removed, the N-terminal tag can be removed in theory, but it's not 100% guaranteed.
Please remark your requirement for tag removal if you need the untagged protein or tag removal when placing the order. We can try enzyme digestion, but we can't guarantee 100% successfully.
The overall success rate of enzyme digestion data analysis is 75%-86%.
* Not all protein tags can be removed as some proteins will be very unstable after tag removal.
* If we succeed in removing the tag, we will charge for extra cost.
* If we fail in removing the tag, we won’t charge for any extra cost, and remark this information in datasheet as follows
“Note: The laboratory determined that the Tag on your protein could not be removed with standard laboratory procedures. Your protein is being supplied with the Tag intact.”
* Generally, the delivery time will be extended for 3 days.

靶點詳情

  • 功能：
    May contribute to the transparency and refractive index of the lens. Has chaperone-like activity, preventing aggregation of various proteins under a wide range of stress conditions.
  • 基因功能參考文獻：
    1. alphaB-crystallin mutants carrying point substitutions in the C-terminal domain PMID: 28919577
    2. Heparan sulfate mediates cell uptake of alphaB-crystallin fused to the glycoprotein C cell penetration peptide PMID: 29408057
    3. Our findings suggest that serum level of miR-491 has potential as a biomarker for predicting OS progression and prognosis of OS patients. miR-491 exerts its role by directly targeting alphaB-crystallin (CRYAB) in OS. PMID: 28648665
    4. Study identified by a next-generation sequencing panel the novel CRYAB missense mutation c.326A>G, p.D109G in a small family with RCM in combination with skeletal myopathy with an early onset of the disease. PMID: 28493373
    5. Using a combination of co-sedimentation centrifugation, viscometric assays and electron microscopy of negatively stained filaments to analyse the in vitro assembly of desmin filaments, this study shows that the binding of CRYAB to desmin is subject to its assembly status, to the subunit organization within filaments formed and to the integrity of the C-terminal tail domain of desmin. PMID: 28470624
    6. Overexpression of both HSPB5 and Hsp27 significantly reduced the intracellular aggregation of alpha-synuclein. PMID: 28337642
    7. Glutathione-S-transferase - HspB1 fusion protein prevents more aggregation of malate dehydrogenase compared to glutathione-S-transferase -HspB5 fusion protein and wild type HspB1. PMID: 28130664
    8. Mechanistic studies revealed KLF4 specifically bound the promoter of CRYAB and upregulated CRYAB expression in human osteosarcoma cells. PMID: 27105535
    9. mRNA levels of HSP family members (HSP70B', HSP72, HSP40/DNAJ, and HSP20/CRYAB) are upregulated by the intracellular MMP3 overload. PMID: 27206651
    10. HspB5 maybe trigger the epithelial-mesenchymal transition in colorectal cancer (CRC) by activating the ERK signaling pathway. It is a potential tumor biomarker for CRC diagnosis and prognosis. PMID: 28796798
    11. The CLN6 is not only a molecular entity of the anti-aggregate activity conferred by the ER manipulation using TMalphaBC, but also serves as a potential target of therapeutic interventions. PMID: 28476624
    12. A missense mutation in alpha B-crystallin that changes proline 20 to an arginine leads to diminished anti-apoptotic activity compared with the native protein. PMID: 28007594
    13. phosphorylation finely regulates the chaperone activity of CRYAB with multipass TMPs and suggest a pivotal role for S59 in this process PMID: 27641668
    14. A missense mutation (p.D109G) in CRYAB causes restrictive cardiomyopathy (RCM). PMID: 28493373
    15. This work examines the molecular mechanism by which two canonical sHsps, alphaB-crystallin (alphaB-c) and Hsp27, interact with aggregation-prone alpha-syn to prevent its aggregation in vitro Both sHsps are very effective inhibitors of alpha-syn aggregation PMID: 27587396
    16. 343delT/343delT and WT KI/343delT-induced pluripotent stem cell-derived skeletal myotubes and cardiomyocytes did not express detectable levels of 343delT protein, contributable to the extreme insolubility of the mutant protein. Overexpression of HSPB5 343delT resulted in insoluble mutant protein aggregates and induction of a cellular stress response. PMID: 27226619
    17. Study suggests that wild-type and mutant alphaB-Cry have dissimilar secondary and tertiary structures. Moreover, alphaB-Cry indicates slightly improved chaperone activity upon the R12C mutation. These results may explain to some extent the non-cataractogenic nature of R12C mutation in aB-Cry. PMID: 27260392
    18. Cryab expression was elevated in osteosarcoma tissues and cell lines, and down-regulation of Cryab in MG-63 and U-2OS cells led to a decline in the cells' aggressiveness, and reduced secretion of matrix metalloproteinase-9 in vitro, and lower metastasis potential in vivo. PMID: 26789112
    19. Identifies alphaB-crystallin as a new binding partner for Nav1.5. alphaB-Crystallin interacts with Nav1.5 and increases INa by modulating the expression level and internalization of cell surface Nav1.5 and ubiquitination of Nav1.5, which requires the protein-protein interactions between alphaB-crystallin and Nav1.5 and between alphaB-crystallin and functionally active Nedd4-2. PMID: 26961874
    20. Alpha B-crystalline plays an important regulatory role in exosome biogenesis. PMID: 27129211
    21. alphaB-crystallin is an important regulator of epithelial-mesenchymal transition, acting as a molecular chaperone for SMAD4 and as its potential therapeutic target for preventing subretinal fibrosis development in neovascular age-related macular degeneration PMID: 26878210
    22. alpha B crystallin is an independent prognostic factor of infiltrating ductal carcinoma of the breast PMID: 26464626
    23. two novel missense mutations, p.R11C and p.R12C, in CRYAB associated with autosomal recessive congenital nuclear cataracts. PMID: 26402864
    24. Phosphorylation of alphaB-crystallin has dual role that manifests either beneficial or deleterious consequences depending on the extent of phosphorylation and interaction with cytoskeleton. [review] PMID: 26415747
    25. The multifunctional activity of human alphaB crystallin results from the interactive peptide sequences exposed on the surface of the molecule. [review] PMID: 26341790
    26. Data show that phosphorylation of crystallin alphaB (cryAB) deters its packaging into vesicles for exosomal secretion. PMID: 26620801
    27. CRYAB protein was up regulated in laryngeal squamous cell carcinoma. PMID: 24817638
    28. was It is markedly upregulated in the substantia nigra of PD patients where Cryab was present in glial cell inclusions. PMID: 25683516
    29. A conserved histidine modulates HSPB5 structure to trigger chaperone activity in response to stress-related acidosis. PMID: 25962097
    30. These data suggest that alphaB-crystallin uses its inherent structural plasticity to expose distinct binding interfaces and thus interact with a wide range of structurally variable clients. PMID: 26458046
    31. findings point to alphaB-crystallin as a novel regulator of anoikis resistance that is induced by matrix detachment-mediated suppression of ERK signaling and promotes lung metastasis. PMID: 25684139
    32. Data suggest expression of CRYAB in endometrium in women with endometriosis may be biomarker for subsequent fertility; CRYAB levels in normal range (neither up- nor down-regulated) are indicative of fertility following medical or surgical treatment. PMID: 24945100
    33. we have summarized current data from emerging and exciting studies of the therapeutic strategies of alpha BC and alpha BC peptides and the efficient delivery strategies of these proteins in various disease models, including neurodegenerative diseases PMID: 25601468
    34. Study provides an accurate determination of the translational and rotational diffusion of alphaB-crystallin over a wide range of concentrations PMID: 25564856
    35. Results suggest a limited function of alphaB-crystallin and HSP27 in preventing abnormal tau protein deposition in glial cells and neurons; in addition, the expression of alphaB-crystallin phosphorylated at Ser59 may act as a protective factor in glial cells. PMID: 24985029
    36. results show that U373 cells produce and secrete CRYAB via exosomes and that stimulation with IL-1beta and TNF-alpha significantly increase the levels of CRYAB in not only the cells but also in the secreted exosomes PMID: 25261722
    37. CRYAB expression is correlated with substantial clinical characteristics of colorectal carcinoma, and it may be identified as an unfavorable prognostic factor for CRC. PMID: 25337251
    38. Raising the levels of CRYAB in spinal motor neurons by 6-fold did not delay paralysis in SOD1 transgenic mice. PMID: 25557022
    39. High expression of CRYAB was correlated with poor survival in non-small cell lung cancer patients. PMID: 25048725
    40. Mutations in CRYAB protein are a rare cause of genetically determined dilated cardiomyopathy. PMID: 23590293
    41. Data indicate that alpha-crystallin B chain and beta-crystallin A3-cyrstallins dissociate to the monomers upon racemization of d-aspartic acids (Asp). PMID: 25450505
    42. Data suggest that inflammatory demyelination during multiple sclerosis is selectively associated with IFN-gamma-induced re-programming of an otherwise protective response of microglia and macrophages to the endogenous TLR2 agonist HSPB5 PMID: 24997049
    43. alphaB-crystallin hasa role in preventing protein aggregation by manipulation of the ER microenvironment PMID: 25449278
    44. This study reported a novel c.59C > G (P20R) missense mutation in CRYAB in a five-generation Chinese family with posterior polar cataract. PMID: 25195561
    45. strong prognostic marker for poor outcome in oral squamous cell carcinoma PMID: 24702231
    46. The higher expression of alphaB-crystallin may lead to prolonged survival of these cells under hypoxic conditions. PMID: 24725344
    47. investigated differences in protein expression levels in IDH1(R132H) mutant versus IDH1 wild type grade III gliomas; alphaB-crystallin proteins are elevated in IDH1(R132H) mutant tumors; expression appears to be controlled at post-translational level; most abundant form of alphaB-crystallin is a low molecular weight C-terminally truncated form PMID: 24473683
    48. Alpha B-crystallin has an essential role in TSC1/2 complex deficiency-mediated tumorigenesis. PMID: 24077282
    49. These findings provide novel insights into the role of p53 as a regulator of bidirectional gene pair HspB2/alpha B-crystallin-mediated ROS and the Warburg effect PMID: 24859470
    50. Crystallin alpha-B is increased in DNA microarray assays of papillary thyroid carcinoma PMID: 24880201

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  • 相關(guān)疾?。?/div>
    Myopathy, myofibrillar, 2 (MFM2); Cataract 16, multiple types (CTRCT16); Myopathy, myofibrillar, fatal infantile hypertonic, alpha-B crystallin-related (MFMFIH-CRYAB); Cardiomyopathy, dilated 1II (CMD1II)
  • 亞細胞定位：
    Cytoplasm. Nucleus. Secreted.
  • 蛋白家族：
    Small heat shock protein (HSP20) family
  • 組織特異性：
    Lens as well as other tissues. Expressed in myocardial tissue.
  • 數(shù)據(jù)庫鏈接：

    HGNC: 2389

    OMIM: 123590

    KEGG: hsa:1410

    STRING: 9606.ENSP00000227251

    UniGene: Hs.53454