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CALR Antibody

  • 货号:
  • 规格:
  • 图片:
    • Western Blot
      Positive WB detected in: Hela whole cell lysate, HepG2 whole cell lysate, MCF-7 whole cell lysate, COLO320 whole cell lysate
      All lanes: CALR antibody at 1:2000
      Goat polyclonal to rabbit IgG at 1/50000 dilution
      Predicted band size: 49 kDa
      Observed band size: 49 kDa
  • 其他:


  • 产品名称:
    Rabbit anti-Homo sapiens (Human) CALR Polyclonal antibody
  • Uniprot No.:
  • 基因名:
  • 别名:
    Autoantigen RO antibody; CALR antibody; CALR protein antibody; CALR_HUMAN antibody; Calregulin antibody; Calreticulin antibody; cC1qR antibody; CRP55 antibody; CRT antibody; CRTC antibody; Endoplasmic reticulum resident protein 60 antibody; Epididymis secretory sperm binding protein Li 99n antibody; ERp60 antibody; FLJ26680 antibody; grp60 antibody; HACBP antibody; HEL S 99n antibody; RO antibody; Sicca syndrome antigen A (autoantigen Ro; calreticulin) antibody; Sicca syndrome antigen A antibody; SSA antibody
  • 宿主:
  • 反应种属:
  • 免疫原:
    Peptide sequence from Human Calreticulin protein (185-196AA)
  • 免疫原种属:
    Homo sapiens (Human)
  • 标记方式:

    本页面中的产品,CALR Antibody (CSB-PA004458OA01HU),的标记方式是Non-conjugated。对于CALR Antibody,我们还提供其他标记。见下表:

    标记方式 货号 产品名称 应用
    HRP CSB-PA004458OB01HU CALR Antibody, HRP conjugated ELISA
    FITC CSB-PA004458OC01HU CALR Antibody, FITC conjugated
    Biotin CSB-PA004458OD01HU CALR Antibody, Biotin conjugated ELISA
  • 克隆类型:
  • 抗体亚型:
  • 纯化方式:
    >95%, Protein G purified
  • 浓度:
    It differs from different batches. Please contact us to confirm it.
  • 保存缓冲液:
    Preservative: 0.03% Proclin 300
    Constituents: 50% Glycerol, 0.01M PBS, PH 7.4
  • 产品提供形式:
  • 应用范围:
  • 推荐稀释比:
    Application Recommended Dilution
    WB 1:1000-1:5000
  • Protocols:
  • 储存条件:
    Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
  • 货期:
    Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.



  • 功能:
    Calcium-binding chaperone that promotes folding, oligomeric assembly and quality control in the endoplasmic reticulum (ER) via the calreticulin/calnexin cycle. This lectin interacts transiently with almost all of the monoglucosylated glycoproteins that are synthesized in the ER. Interacts with the DNA-binding domain of NR3C1 and mediates its nuclear export. Involved in maternal gene expression regulation. May participate in oocyte maturation via the regulation of calcium homeostasis. Present in the cortical granules of non-activated oocytes, is exocytosed during the cortical reaction in response to oocyte activation and might participate in the block to polyspermy.
  • 基因功能参考文献:
    1. unwanted cells such as aging neutrophils and living cancer cells are susceptible to "labeling" by secreted calreticulin (CRT) from macrophages, enabling their clearance through programmed cell removal. PMID: 30097573
    2. Patients with CALR mutation had significantly higher concentration of PDGF-BB and lower concentration of SDF-1alpha than patients with JAK2V617F mutation. High concentration of PDGF-BB and low concentration of SDF-1alpha in patients with CALR(+) ET may indicate a contribution of these chemokines in disturbed Ca2+ metabolism in platelets. PMID: 29390868
    3. These results implicate miR-455 regulated hydrogen sulfide protection of lung epithelial cells against hypoxia-induced apoptosis by stimulating Calr PMID: 30193773
    4. Calreticulin has a dual nature, and it has been found to be up-regulated or down-regulated in several types of cancer serving as either oncogene or anti-oncogene. PMID: 30444198
    5. Study propose that leukocytes infiltration via the binding of CRT to ITGAs is necessary for the onset and development of the ulcerative colitis and the inhibition of this interaction may be a novel therapeutic strategy for the treatment of inflammatory bowel diseases. PMID: 29773794
    6. Triplex probe-based TaqMan qPCR is an accurate and sensitive method for screening essential thrombocythemia or primary myelofibrosis patients with type I and II mutations in CALR. PMID: 30080988
    7. Comprehensive genomic characterization identified distinct genetic subgroups and provided a classification of myeloproliferative neoplasms on the basis of causal biologic mechanisms. Mutations in JAK2, CALR, or MPL being the sole abnormality in 45% of the patients. PMID: 30304655
    8. The prevalence of CALR mutation in JAK2V617F-negative essential thrombocythemia in this study is 35.7%. HRM is an effective method of detecting CALR mutation and is a more advantageous method of screening for CALR mutation. PMID: 29521158
    9. MPL and CALR genotypes show a similar clinical picture at essential thrombocythaemia diagnosis. In CALR genotype features of prefibrotic myelofibrosis are common. PMID: 29934356
    10. explored CRT reactivity of 14 different recombinant monoclonal antibodies (mAbs) derived from CLL patients carrying BCRs from various different stereotyped subsets PMID: 28751563
    11. The novel mutations occurred and changed the amino acid sequence of the C domain amino acid residues of CALR, which will interfere with the calcium-binding capacity of the molecule. The CALR mutations will improve our understanding of the pathophysiology of myeloproliferative neoplasms. PMID: 28747287
    12. Our study shows that JAK2V617F leads to abnormal expression of numerous proteins at the membrane of circulating PV red blood cells, with overexpression of CALR and persistence of CANX PMID: 28385780
    13. In 94.9% of PV, 85.5% ET and 85.2% PMF, authors found mutations in JAK2, MPL or CALR. 74.9% carried JAK2V617F, 12.3% CALR mutations, 2.1% MPL mutations and 10.7% were triple negative. PMID: 28990497
    14. these data support the model that CALR-mutated essential thrombocythemia could be considered as a distinct disease entity from JAK2V617F-positive myeloproliferative neoplasms PMID: 29217833
    15. This phenotypic diversity is further emphasized by the following report of a patient with an isolated erythrocytosis, persistent for nearly twelve years, associated with a CALR exon 9 mutation PMID: 28711709
    16. CALR exon 9 mutation is associated with myeloproliferative neoplasms. PMID: 28411309
    17. Absence of CALR mutations in JAK2-negative polycythemia. PMID: 27758825
    18. In 136 patients with myelofibrosis and a median age of 58 years who underwent allogeneic stem cell transplantation (AHSCT) for molecular residual disease, the percentage of molecular clearance on day 100 was higher in CALR-mutated patients (92%) in comparison with MPL- (75%) and JAKV617F-mutated patients (67%). PMID: 28714945
    19. Mutational subtypes of CALR correlate with different clinical features in Japanese patients with myeloproliferative neoplasms. PMID: 29464483
    20. CALR mutations is associated with non-hepatosplenic extramedullary hematopoiesis(NHS-EMH) and may possibly contribute to the pathogenesis of primary myelofibrosis -associated NHS-EMH. PMID: 27315113
    21. This study demonstrated that two patients had a heterozygous CALR exon9 mutation locating outside the coding region and did not alter the amino acid sequence of this protein. PMID: 28625126
    22. Multivariate analysis adjusted for age, sex, follow-up period and hematological parameters confirmed that increased activated B cells were universally present in JAK2-mutated, CALR-mutated and triple-negative ET patients when compared to healthy adults. PMID: 28415571
    23. these results reveal proteome alterations in MPN granulocytes depending on the phenotype and genotype of patients, highlighting new oncogenic mechanisms associated with JAK2 mutations and overexpression of calreticulin PMID: 28314843
    24. CALR mutation is associated with Essential thrombocythemia. PMID: 28205126
    25. the CALR-mutant stem cell would achieve clonal dominance much faster than the JAK2-mutant one and confirm the model initially proposed in which the clonal evolution of CALR-mutant MPN appears to be mainly associated with a progressive expansion of a mutant heterozygous clone that eventually becomes fully dominant in the bone marrow. PMID: 28422716
    26. The present study detected expression of CRT in patients with osteosarcoma , in the non-metastasis group compared with the metastasis group, and in the chemotherapy group compared with the non-chemotherapy group. CONCLUSIONS: These results could indicate a brand-new biological marker which may be applied to estimate the features and prognosis of osteosarcoma. PMID: 28106543
    27. in molecularly annotated ET patients at diagnosis, JAK2-V617F patients have more circulating microparticles and higher MP-associated procoagulant activities than CALR-mutated and TN ET patients. PMID: 27247323
    28. results suggest that CALR exon 9 mutations hold promise as targets for cancer immune therapies; for example as targets for vaccines or adoptive cell therapies. In order to formally establish that the CALR mutations act as tumor antigens for immunotherapy, we are currently working to establish specific T-cell clones to show that such clones recognize target cells that endogenously express mutated CALR PMID: 27560107
    29. Report PCR clamping technique for detection of type 1 and type 2 mutations in CALR gene in myeloproliferative neoplasms. PMID: 28031530
    30. Late-stage inhibition of autophagy enhances calreticulin surface exposure in colonic tumor cells. PMID: 27825129
    31. JAK2 and CALR mutations have roles in patients with essential thrombocythemia PMID: 27486987
    32. Clinical features of JAK2V617F- or CALR-mutated essential thrombocythemia and primary myelofibrosis. PMID: 26994960
    33. Studies indicate there are two main types of calreticulin gene (CALR) mutants, type 1 and type 2, and there is evidence about their distinct clinical/prognostic implications. PMID: 27384487
    34. our data suggest the involvement of autoimmune reactivity to CRT in a subset of patients suffering from DCM or HCM. PMID: 27689957
    35. Endoplasmic reticulum chaperone CRT plays a regulatory role in the invasion of EVTs, suggesting the importance of CRT expression in placental development during early pregnancy. PMID: 28938427
    36. findings demonstrate the potency of CALR mutants to drive expression of megakaryocytic differentiation markers such as NF-E2 and CD41 as well as Mpl. Furthermore, CALR mutants undergo accelerated protein degradation that involves the secretory pathway and/or protein glycosylation. PMID: 27177927
    37. Essential Thrombocythemia and Primary Myelofibrosis patients with CALR mutations are at high risk for Thrombotic Events. PMID: 28766534
    38. These findings showed that mutant CALR activates jak-stat signaling through an mpl-dependent mechanism to mediate pathogenic thrombopoiesis in zebrafish, and illustrated that the signaling machinery related to mutant CALR tumorigenesis are conserved between human and zebrafish. PMID: 27716741
    39. The present work suggests that Ca(2+)-dependent regulation is caused by different conformations of a long proline-rich loop that changes the accessibility to the peptide/lectin-binding site. Our results indicate that the binding of Ca(2+) to calreticulin may thus not only just be a question of Ca(2+) storage but is likely to have an impact on the chaperone activity. PMID: 27195812
    40. CRT regulates TGF-beta1-induced-EMT through modulating Smad signaling PMID: 28778674
    41. Our results showed that a wide range of different CALR mutations are associated with a distinct ET clinical phenotype that is associated with the male gender, younger age at diagnosis, higher platelet and lower leukocyte and erythrocyte counts and lower hemoglobin level, and a milder clinical course. PMID: 27521277
    42. alpha-Integrin expression and function modulates presentation of cell surface calreticulin. PMID: 27310876
    43. Although CALR mutations resulted in protein instability and proteosomal degradation, mutant CALR was able to enhance megakaryopoiesis and pro-platelet production from human CD34(+) progenitors. PMID: 27740635
    44. Studies show that all CALR mutations generate frameshift mutation in the exon 9, which encodes the C-terminus end conferring a common mutant-specific sequence in all mutants. Mutant CALR constitutively activates MPL to induce cellular transformation. The interaction between the mutant CALR and MPL is achieved by the conformational change in the C-terminal allowing N-domain binding to MPL. [review] PMID: 28741795
    45. C-CALR in response to Ca2+ undergoes conformational changes that trigger its function to export GR from the nucleus, resetting the stress response of normal erythroid cells. Impairment of this function in JAK2V617F-positive erythroid cells maintains EPO-R signaling in proliferation mode, contributing to erythrocytosis in PV. PMID: 28232234
    46. Mannan-binding lectin (MBL) bound to T cells through interaction between the collagen-like region of MBL and calreticulin (CRT) expressed on the T-cell surface. PMID: 28209773
    47. CRT exposure represents a novel powerful prognostic biomarker for patients with acute myeloid leukemia. PMID: 27802968
    48. In absence of CALR, immature MPO protein precursors are degraded in the proteasome. PMID: 27013444
    49. In patients with HD, a panel using calretinin and peripherin with or without MAP-2 may be most helpful in identifying transition zones PMID: 26469323
    50. Coexisting mutations of the JAK2, CALR, and MPL genes in myeloproliferative neoplasms suggest that CALR and MPL should be analyzed not only in JAK2-negative patients but also in low V617F mutation patients. PMID: 27855276



  • 亚细胞定位:
    Endoplasmic reticulum lumen. Cytoplasm, cytosol. Secreted, extracellular space, extracellular matrix. Cell surface. Sarcoplasmic reticulum lumen. Cytoplasmic vesicle, secretory vesicle, Cortical granule. Cytolytic granule.
  • 蛋白家族:
    Calreticulin family
  • 数据库链接:

    HGNC: 1455

    OMIM: 109091

    KEGG: hsa:811

    STRING: 9606.ENSP00000320866

    UniGene: Hs.515162