Calreticulin Protein, Human, Recombinant

Calreticulin Protein, Human, Recombinant is expressed in HEK293 mammalian cells. The predicted molecular weight is 45.99 kDa and the accession number is P27797.

Calreticulin Protein, Human, Recombinant

パッケージサイズ	在庫状況	単価(税別)
100 μg	約5 days	￥ 138,000
1 mg	約5 days	￥ 897,500

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説明	Calreticulin Protein, Human, Recombinant is expressed in HEK293 mammalian cells. The predicted molecular weight is 45.99 kDa and the accession number is P27797.

Species	Human
Expression Host	HEK293 Cells
Tag	Tag Free
Accession Number	P27797
別名	HEL-S-99n, calreticulin, cC1qR, CRT, RO, SSA
Construction	Human CALR (P27797) (Met1-Ala413)
Protein Purity	≥ 90 % as determined by SDS-PAGE.
分子量	45.99 kDa (predicted)

Endotoxin	< 1.0 EU/μg of the protein as determined by the LAL method.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
Stability & Storage	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	In general, Lyophilized powders are shipping with blue ice.
Research Background	Calreticulin is a multifunctional protein. It acts as a main Ca(2+)-binding (storage) protein in the lumen of the endoplasmic reticulum. Calreticulin binds Ca2+ ions (a second messenger in signal transduction), rendering it inactive. The Ca2+ is bound with low affinity, but high capacity, and can be released on a signal. Located in storage compartments associated with the endoplasmic reticulum, calreticulin also binds to misfolded proteins and prevents them from being exported from the endoplasmic reticulum to the golgi apparatus. The amino terminus of calreticulin interacts with the DNA-binding domain of the glucocorticoid receptor and prevents the receptor from binding to its specific glucocorticoid response element. Calreticulin reduces the binding of androgen receptor to its hormone-responsive DNA element and inhibits androgen receptor and retinoic acid receptor transcriptional activities in vivo, as well as retinoic acid-induced neuronal differentiation. Therefore, calreticulin acts as a significant modulator of the regulation of gene transcription by nuclear hormone receptors.

参考文献

1. Michalak M,et al. (2002) Calreticulin in cardiac development and pathology. Biochim Biophys Acta. 1600(1-2):32-7. 2. Chao MP,et al. (2010) Calreticulin is the dominant pro-phagocytic signal on multiple human cancers and is counterbalanced by CD47. Sci Transl Med. 2(63):63ra94. 3. Andrin, C,et al. (1998) Interaction between a Ca2+-binding protein calreticulin and perforin, a component of the cytotoxic T-cell granules. Biochemistry. 37(29):10386-94.

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Calreticulin Protein, Human, Recombinant

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