SKU: 35069523755

CALR/Calreticulin His Tag Protein, Human

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Description

CALR/Calreticulin His Tag Protein, HumanProduct Specification Species Human Synonyms CRT, HEL S 99n, RO, SSA Accession P27797 Amino Acid Sequence Glu18 Ala413, with C terminal His Expression System HEK293 Molecular Weight 50 60kDa (Reducing) Purity 95% by SDS PAGE Endotoxin <0. 1EU g Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, pH7. 4. Reconstitution Reconstitute at 0. 1 1 mg ml according to the size in ultrapure water after rapid

Product Specification


Species Human
Synonyms CRT, HEL-S-99n, RO, SSA
Accession P27797
Amino Acid Sequence Glu18-Ala413, with C-terminal His
Expression System HEK293
Molecular Weight

50-60kDa (Reducing)

Purity >95% by SDS-PAGE
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, pH7.4.
Reconstitution

Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.

Stability & Storage · 12 months from date of receipt, lyophilized powder stored at -20 to -80℃.
· 3 months, -20 to -80℃ under sterile conditions after reconstitution.
· 1 week, 2 to 8℃ under sterile conditions after reconstitution.
· Please avoid repeated freeze-thaw cycles.
Reference

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.

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.

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SKU: 35069523755

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AmazonSmile
Omaha, US
★★★★★ 5
Soft and cool. Very cool. 🧊
Size: Queen, Color: White
I bought these for my memory foam pillow and they’re excellent for cooling it. I use 2 of these on the pillow for maximum chill factor and it works. They’re very soft, the zippers are high quality. Easy to put on with a bit of stretch- generously sized. They’re stain resistant. I’m glad they’re NOT waterproof because they’d be too hot then. They’re very durable. Wash on delicate setting in a mesh bag and air dry and they last long. They’re very quiet- smooth and silky. Definitely recommend!
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Reviewed in the United States on January 15, 2026
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Jamie Cowan
Lake Worth, US
★★★★★ 3
Cool enough
Size: Queen, Color: White, Size: Queen, Color: White
I thought I had purchased pillows so when I received these I was a little disappointed. However that was 100% on me for not reading the listing and just trusting my search. I decided to give them a try and so far they seem ok. They don’t stay cool even though I have them on cooling pillows. They are super thin but very soft. They fit on my pillows perfectly. I don’t think it has improved my sleep quality but it hasn’t made it any worse either. I don’t think they are waterproof but I don’t really want to test that. I like that the zipper is small and seems to be decent quality. Smelled heavily of chemicals when I first took it out of the package but that disappeared after a few minutes.
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Reviewed in the United States on March 21, 2026
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Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Sleep like a baby
Size: Queen, Color: White
These pillow covers are cool. They keep you cool at night. very, very comfortable.
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Reviewed in the United States on May 13, 2026
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Chris Hernandez
Louisville, US
★★★★★ 5
Very well made.
Size: King, Color: White
These work great and look good.
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Reviewed in the United States on April 27, 2026
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Janet M. Swayne
Louisville, US
★★★★★ 5
Great pillow!
Size: Queen (Pack of 2)
They were a gift for my daughter and she loves them! She says they are comfortable and "squishy" and she sleeps better on them.
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Reviewed in the United States on May 5, 2026

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