SKU: 47110556901

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: 47110556901

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4.4 ★★★★★
Based on 15 reviews
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Product Reviews
A
Verified Purchase
AH
Bozeman, US
★★★★★ 5
Great teeth cleaning toy
Style: Gator, Size: Large (Pack of 1)
I bought this for my pit bull. He is 75-80lbs. They didn't have an option for his weight, so I got the alligator for up to 35lbs. He has already chewed the alligator's face off. Now it is just an analgator. lol I do monitor him the whole time since he is over the weight limit of this chew toy. The body of the alligator has proven to be better suited for my pit bull's chewing than the face part. I bought an Arm & Hammer yellow bone chew toy for teeth cleaning a while back. It was the BEST THING EVER for my pit bull to chew on. He destroys every toy in a matter of minutes. That yellow bone lasted forever and he chewed on it daily and consistently throughout the day. I haven't been able to find another one like it, so I decided to get this alligator despite it not being for his size. It still seems durable and I think would last longer with a dog under 35lbs. I give it 5 stars bc it is a well-liked chew toy in my house with the dogs I have that like to chew. It seems well-made and great for cleaning teeth.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 26, 2023
J
Verified Purchase
Jean
Louisville, US
★★★★★ 5
Great for aggressive chewers
Style: Gorilla, Size: Small (Pack of 1)
My little Corgi is an aggressive chewer. She has destroyed quite a few toys that were advertised for chewers. When I received this toy I had little confidence but it has lasted unscathed. Aside from being sturdy it also bounces so we play ball with it. It is one of her favorite toys.
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Reviewed in the United States on February 8, 2026
N
Verified Purchase
Nicole K
Bozeman, US
★★★★★ 4
Strong and Great for Treats, but Heavier Than Expected
Style: Gorilla, Size: Small (Pack of 1), Style: Gorilla, Size: Small (Pack of 1)
This is a very durable and well-made chew toy with good overall quality. The material is thick rubber and holds up well to chewing. It also works very well for holding treats, which stay in place securely. The main drawback is the weight. My dog is about 30 pounds, and even though this is a smaller version, it is still fairly heavy. She tends to use it mainly to get the treats out and then loses interest afterward. What I like: Very durable material Works great for holding treats Good bounce and quality construction Cute design Things to be aware of: Heavier than expected Some treats may be difficult to insert Dogs may lose interest once treats are gone Overall: This is a solid treat-based toy that is built well, but the weight may limit how much some dogs interact with it beyond treat use.
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Reviewed in the United States on May 23, 2026
J
Verified Purchase
JS
Houston, US
★★★★★ 5
Extremely tough!
Style: Gorilla, Size: Large (Pack of 1)
These are seriously so much better (and cheaper) than any other supposedly "strong/durable" type toy like this. We have 70lb very strong chewers and they chew through everything. Can not have stuffies. They do eventually chew through but it seriously takes awhile. Especially in comparison to other brands. I will say it says "recommended for dogs under 35lbs" but I also work for houses where I recommended these for their dogs which were smaller and they wouldn't chew on because too tough. But they also accidentally bought the large which is what I buy my big dogs. So the large is GREAT for big dogs. If you have a dog under 35lbs I'd get the size small. Also .... says you can stuff treats. You really can't. Which my dogs don't need. They just love to chew on. I call it their bubble gum because when they FINALLY get a chunk off(which again takes awhile.... as in over a week) they will fling the pieces into the air and chew on like a piece of bubble gum lol... they love it! I don't notice a difference in breath or anything but I don't use the toothpaste either. I just bought to see if tough and they are!! And again price is clearly so much better. I hate spending $20+ on a toy they destroy in a day.
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Reviewed in the United States on December 30, 2023
A
Verified Purchase
Alanna
Battle Creek, US
★★★★★ 3
Beware if your dog likes to chew
Style: Gorilla, Size: Large (Pack of 1)
It’s super cute and my dog loved it, but it didn’t last very long. My dog started peeling off pieces of it and eating it within three hours of play. If you have a dog that takes it easy on the toys I would recommend this one. Otherwise I recommend passing because there’s no way it’s safe for them to be swallowing these pieces.
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Reviewed in the United States on March 26, 2026

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