Recombinant Human Calreticulin (CALR), partial, Homo sapiens (Human), E.coli, N-terminal 6xHis-tagged, 32.4kDa, purity >90% as determined by SDS-PAGE.

Recombinant Human Calreticulin (CALR), partial

Recombinant Human Calreticulin (CALR), partial — Calcium-binding chaperone that promotes folding, oligomeric assembly and quality control in the endoplasmic reticulum (ER) via the calreticulin/calnexin cycle. Purity >90%.

SKU: BCRECP-000224 Category:
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Product Specifications

Product SkuBCRECP-000224
Product DescriptionRecombinant Human Calreticulin (CALR) Protein is expressed from E.coli with N-terminal 6xHis-tagged. It contains 177-417aa. [Accession | P27797].
Uniprot No.P27797
Gene NamesCALR
PurityGreater than 90% as determined by SDS-PAGE.
Expression SystemE.coli
Expression Region177-417aa
SpeciesHomo sapiens (Human)
Tag InfoN-terminal 6xHis-tagged
Molecular weight32.4kDa
ActivityPlease contact us to obtain bioactivity data.
BufferIf the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose.
StorageStore at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Research AreasTags & Cell Markers

Function

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.

Biological Context

Subcellular Location: Endoplasmic reticulum lumen; Cytoplasm, cytosol; Secreted, extracellular space, extracellular matrix; Cell surface; Sarcoplasmic reticulum lumen; Cytoplasmic vesicle, secretory vesicle, Cortical granule; Cytolytic granule
Disease Association: [CALR somatic mutations are frequently found in myeloproliferative neoplasms lacking JAK2 or MPL mutations. Myeloproliferative neoplasms are chronic myeloid cancers characterized by overproduction of mature blood cells, and may evolve into acute myeloid leukemia. In addition to chronic myeloid leukemia with the BCR-ABL fusion gene, the three most common myeloproliferative neoplasms are essential thrombocythemia, polycythemia vera, and myelofibrosis]

Product Specifications

Recombinant Human Calreticulin (CALR), partial is a recombinant protein from Homo sapiens (Human), expressed in E.coli, covering amino acids 177-417aa, with N-terminal 6xHis-tagged tag, molecular weight 32.4kDa, purity Greater than 90% as determined by SDS-PAGE.. Suitable for ELISA and Western Blot applications.

SDS-PAGE: Single band at expected molecular weight confirming purity.

ELISA: Suitable as coating antigen or detection standard.

Western Blot: Compatible with standard Western Blot protocols.

Protein Interaction: Validated for SPR (Surface Plasmon Resonance) and BLI (Bio-Layer Interferometry) studies.

Shipping: Shipped at ambient temperature. Lyophilized protein is stable during transit.

Storage: Store lyophilized protein at -20°C to -80°C. Reconstituted protein should be aliquoted and stored at -80°C. Avoid repeated freeze-thaw cycles.

Shelf Life: 12 months from date of receipt when stored as recommended.

Shipping Time: Orders placed before 2 PM EST ship same day. International orders typically deliver within 5-10 business days.

Related products

Protein Biology

Function

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 (PubMed:7876246). Interacts with the DNA-binding domain of NR3C1 and mediates its nuclear export (PubMed:11149926). Involved in maternal gene expression regulation. May participate in oocyte maturation via the regulation of calcium homeostasis (By similarity). 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 (By similarity)

Subcellular Location

Endoplasmic reticulum lumen; Cytoplasm, cytosol; Secreted, extracellular space, extracellular matrix; Cell surface; Sarcoplasmic reticulum lumen; Cytoplasmic vesicle, secretory vesicle, Cortical granule; Cytolytic granule

Disease Association

[CALR somatic mutations are frequently found in myeloproliferative neoplasms lacking JAK2 or MPL mutations. Myeloproliferative neoplasms are chronic myeloid cancers characterized by overproduction of mature blood cells, and may evolve into acute myeloid leukemia. In addition to chronic myeloid leukemia with the BCR-ABL fusion gene, the three most common myeloproliferative neoplasms are essential thrombocythemia, polycythemia vera, and myelofibrosis]

Subunit

Monomer. Component of an EIF2 complex at least composed of CELF1/CUGBP1, CALR, CALR3, EIF2S1, EIF2S2, HSP90B1 and HSPA5. Interacts with PDIA3/ERp57 and SPACA9 (By similarity). Interacts with TRIM21 (PubMed:8666824). Interacts with NR3C1 (PubMed:11149926). Interacts with PPIB (PubMed:20801878). Interacts (via P-domain) with PDIA5 (PubMed:23614004). Interacts with GABARAP (PubMed:19154346). Interacts with HLA-E-B2M and HLA-G-B2M complexes (PubMed:9427624, PubMed:9640257). Interacts with HLA-F (PubMed:10605026). Interacts with CLCC1 (PubMed:30157172)

Gene: CALR  |  Organism: Homo sapiens  |  Synonyms: CRP55; Calregulin; Endoplasmic reticulum resident protein 60; HACBP; grp60
Key Publications

Frequently Asked Questions

How do I order or inquire about this product?

Fill out the Online Inquiry form with your required quantity and specifications. You can also email sales@biocrestsci.com. Our team typically responds within 4 business hours with a quote and availability confirmation.

What is the shipping and delivery time?

Orders placed before 2 PM EST ship the same day. Domestic (US) delivery typically takes 2-3 business days. International orders deliver within 5-10 business days. All products are shipped at ambient temperature with appropriate packaging to ensure stability.

How should I store this recombinant protein?

Lyophilized proteins should be stored at -20°C to -80°C upon receipt. After reconstitution, aliquot and store at -80°C. Avoid repeated freeze-thaw cycles. Shelf life is 12 months from date of receipt when stored as recommended.

What quality controls are performed on your products?

Each product undergoes SDS-PAGE purity analysis (typically >85-95%), endotoxin testing, and bioactivity validation. Products are validated for ELISA, Western Blot, and SPR/BLI applications as specified on this product page. A Certificate of Analysis (CoA) is available upon request.

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