SKU: 8318026977

R-spondin 1 Protein, Mouse

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Description

R-spondin 1 Protein, MouseProduct Specification Species Mouse Synonyms RSPO1; R spondin1; RP11 566C13. 1; CRISTIN3; FLJ40906; RSPO Rspo1; R spondin; Rspondin; RP23 325M14. 2; Roof plate specific spondin 1 Accession Q9Z132 Amino Acid Sequence Ser21 Gly209 Expression System E. coli Molecular Weight Approximately 20. 9 kDa, a single non glycosylated polypeptide chain containing 189 amino acids. Purity 96% by SDS PAGE or HPLC. Conjugation Unconjugated Tag No Tag Physical

Product Specification


Species Mouse
Synonyms RSPO1; R-spondin1; RP11-566C13.1; CRISTIN3; FLJ40906; RSPO Rspo1; R-spondin; Rspondin; RP23-325M14.2; Roof plate-specific spondin-1
Accession Q9Z132
Amino Acid Sequence

Ser21-Gly209

Expression System E.coli
Molecular Weight Approximately 20.9 kDa, a single non-glycosylated polypeptide chain containing 189 amino acids.
Purity >96% by SDS-PAGE or HPLC.
Conjugation Unconjugated
Tag No Tag
Physical Appearance Lyophilized Powder
Storage Buffer

20 mM PB, with 150 mM NaCl, pH 7.4.

Reconstitution Before use this product, please read the direction below carefully.
This vial must be briefly centrifuged prior to opening to bring the contents to the bottom.
Reconstitute in a sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/ml.
Stock solutions should be apportioned into working aliquots and stored at ≤ -20℃.
Further dilutions should be made in appropriate buffered solutions.
Stability & Storage

For long term storage, the product should be stored ≤ -20℃.
Please avoid repeated freeze-thaw cycles after reconstitution.
12 months from date of receipt, -20 to -70℃ as supplied.
1 month, 2 to 8℃ under sterile conditions after reconstitution.
3 months, -20 to -70℃ under sterile conditions after reconstitution.

Background

R-Spondin 1, also known as cysteine-rich and single thrombospondin domain containing protein 3 (Cristin 3) , is a 27kDa secreted protein that shares ~40% amino acid (aa) identity with three other R-Spondin family members (1, 2) . All R-Spondins regulate Wnt/beta-Catenin signaling but have distinct expression patterns. R-Spondin 1 competes with the Wnt antagonist DKK-1 for binding to the Wnt co-receptors, Kremen and LRP-6, reducing their DKK-1-mediated internalization. However, reports are mixed on whether R-Spondin 1 binds LRP-6 directly. R-Spondin 1 is expressed in early development at the roof plate boundary and is thought to contribute to dorsal neural tube development. I Postnatally, R-Spondin 1 is expressed by neuroendocrine cells in the intestine, adrenal gland and pancreas, and by epithelia in kidney and prostate (9) . Injection of recombinant R-Spondin 1 in mice causes activation of beta-catenin and proliferation of intestinal crypt epithelial cells, and ameliorates experimental colitis. Mouse R-Spondin 1 shares 98%, 94%, 94%, 93%, 92% and 88% aa identity with rat, human, horse, cow, goat and dog RSPO-1, respectively, within aa 21-209. Recombinant Mouse R-Spondin 1 is a single non-glycosylated polypeptide chain containing 189 amino acids

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Exchange/Return Notes
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SKU: 8318026977

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4.2 ★★★★★
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momOfMaxx
Phoenix, US
★★★★★ 5
zelda‘s “indoor” ⚽️ ball!
Color: Squeaky Green, Size: Medium Size 2 (6")
zelda loves her soccer ball - because of the fabric “tabs”, and the way she treats her toys, we keep it inside. she loves to place all of her toys and bones on our bed, after they’ve been cleaned. this ball is perfect and soft enough to throw it down our steps, where she will run down, retrieve it, and bring it back to the bed. it arrives deflated and comes with the pump and two needles - the pump is not the sturdiest and felt like it was not inflating, but after only having to reflate it once with a bit of air since receiving it ~5-6 months ago, it still holds up!
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Reviewed in the United States on February 2, 2026
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Desy
Phoenix, US
★★★★★ 3
Small for a medium
Color: Red-Blue, Size: Medium Size 2 (6"), Color: Red-Blue, Size: Medium Size 2 (6")
I got medium.. and it does not look like a medium ball.. it’s rather small. It’s pretty sturdy and my dogs went crazy for it but it’s definitely not the size I thought it was going to be 😂 my dogs chewed one strap within 5 minutes of having it but they’re dogs and that’s what they do lol. I bought this to be an outside ball for them! It’s pretty light but that’s probably because it’s small. Not soft? But feels like a soccer ball. It also had no smell coming out of the box. Also comes with a pump and an extra thing to put in the ball to pump in case you lose one. I like these balls, I expect them to be chewed up because that’s what I bought them for! Fun for my dogs and they are! But the size… it is not medium and that’s the only reason for 3 stars 😂😂😂 Other then that I recommend, your dog will definitely love this! Inside or outside playing! Alone or with another dog!
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Reviewed in the United States on October 15, 2025
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Verified Purchase
James T.
Lowell, US
★★★★★ 5
Great toy for a GSD
Color: Blue Gray, Size: Extra Large Size 5 (9")
My GSD loves to grab the flaps and shake her head with the ball bouncing of the side of her head. This is her favorite toy. I thought she would puncture it but it has held up great since she likes to grab the flaps rather than biting the ball.
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Reviewed in the United States on May 6, 2026
J
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JewelsfromJerri
Omaha, US
★★★★★ 5
Fun, Durable Balls for smaller heavy chewers
Color: Four colors, Size: 5cm (ball only)
Perfect size and strength for my small dog that is a heavy chewer! She hasn’t been able to destroy and chew up this one like she has with every other toy! Definitely chew resistant.
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Reviewed in the United States on April 26, 2026
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Jen Johnson
Birmingham, US
★★★★★ 5
Bouncy and durable
Color: Four colors, Size: 5cm (ball only), Color: Four colors, Size: 5cm (ball only)
These balls are awesome - bouncy and super durable for my little guy!
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Reviewed in the United States on May 17, 2026

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