SKU: 19804936997

Klotho Protein, Mouse

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Description

Klotho Protein, MouseProduct Specification Species Mouse Synonyms Klotho; EC: 3. 2. 1. 31 Accession O35082 Amino Acid Sequence Ala35 Lys982, with C terminal His Tag Expression System HEK293 Molecular Weight 65, 75, 120 130 kDa (Reducing) Purity >85% by SDS PAGE and HPLC. Endotoxin <0. 1EU g Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized powder Storage Buffer PBS, 5% trehalose, pH7. 4 Reconstitution Reconstitute at 0. 1 1 mg ml according to the size

Product Specification


Species Mouse
Synonyms Klotho; EC:3.2.1.31
Accession O35082
Amino Acid Sequence

Ala35-Lys982, with C-terminal His Tag

Expression System HEK293
Molecular Weight

65, 75, 120-130 kDa (Reducing)

Purity >85% by SDS-PAGE and HPLC.
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized powder
Storage Buffer

PBS, 5% trehalose, 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

Nature. 1997 Nov 6;390(6655):45-51.
Science. 2005 Sep 16;309(5742):1829-33.

Background

Mouse Klotho (mKL) is a 1014-aa type-I trans-membrane glycoprotein of the glycosidase-1 super-family that is expressed mainly in distal convoluted tubule cells of the kidney, choroid plexus of the brain, and adrenal zona glomerulosa. A soluble 130-kDa form is generated by ADAM10/17 proteolytic shedding and circulates in plasma and CSF. Klotho functions as an obligate co-receptor for FGF23, thereby regulating phosphate and vitamin-D homeostasis; It also exhibits intrinsic β-glucuronidase activity that activates TRPV5/6 channels for renal Ca²⁺ reabsorption. Homozygous Klotho-deficient (kl/kl) mice on a mixed C57BL/6J, FVB, and C3H/J background develop a premature-aging phenotype—growth retardation, osteoporosis, arteriosclerosis, skin atrophy, emphysema, infertility, and death by 8–9 weeks. Conversely, transgenic over-expression extends lifespan and improves cognition, synaptic plasticity, and stress resilience.

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SKU: 19804936997

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4.4 ★★★★★
Based on 29 reviews
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Verified Purchase
J. Barry
Dallas, US
★★★★★ 4
would be five stars, but it makes a weird clicking sound as you pull a sheet to dispense
Color: Silver
After researching tons of these, and actually owning some of them in the past, I landed on this brand. i’m hoping it stands the test of time. In times past, the arm broke from the other heavy duty paper towel holders I bought (I think I’m on my fourth one right now. It’s pretty sad.). This one seems pretty stable. I like the suction cups on the bottom, although sometimes it makes it difficult to move and clean around it because it really has a good grab on my granite countertop. The one thing that I’m not a fan of is a clicky kind of sound when you pull a sheet to tear off. It’s a little bit annoying and kinda loud. If there were superior paper towel holders without the clicking sound I most definitely would purchase, but the other ones seem to be junk. Crossing fingers this one works. I’ll just have to ignore that clicking sound. It’s just how that propeller-like mechanism works that the paper towel itself slides onto.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
A
Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 5
Quality of this 👌 product
Color: Silver
This is a great item. It works very well. Very happy with this purchase
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Reviewed in the United States on March 30, 2026
S
Verified Purchase
Stella
Lowell, US
★★★★★ 5
Stays EXACTLY in place!
Color: Black, Color: Black
Buying a 2nd one for the bathroom! Stays EXACTLY in place but easily slides on any surface to where ever you want it!! NOT like traditional paper towel holder that fall over when you pull the sheets apart!!! Great value! Convenient! Stable! Easy to install!
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Reviewed in the United States on May 1, 2026
T
Verified Purchase
Tootsie
Lexington, US
★★★★★ 5
I love it
Color: White
It has taken a few weeks to get use to- learning how to pull it and when so the paper towels come off right. The suction cups are amazing. If you need to release it- I just slide a butter know gently und them and it un suctions. Hopefully it lasts a long time.
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Reviewed in the United States on April 27, 2026
C
Verified Purchase
Courtney Richards | Finds For Families
Alexandria, US
★★★★★ 5
Very functional for our family - We ordered a second one
Color: Black
We were happy to stumble on this paper towel holder after trying a few that just either didn’t look great and didn’t work well. We really like the black matte finish and the fact that the base is pretty heavy so you can actually tear off a paper towel without the whole thing toppling over. The spray/cleaner is an added bonus to have right there also. It’s awesome for craft time and cleanup after kids. We purchased one for both our kitchen table and our rental property and they both function great and have been holding up very well. Happy with the purchase!
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Reviewed in the United States on March 15, 2024

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