SKU: 55057172270

GM-CSF Protein, Human

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Description

GM-CSF Protein, HumanProduct Specification Species Human Antigen GM CSF Synonyms GM CSF, Granulocyte Macrophage Colony Stimulating Factor, CSF 2, MGI 1GM, Pluripoietin alpha, Molgramostin, Sargramostim Ala18 Glu144 Accession P04141 Amino Acid Sequence Ala18 Glu144 Expression System E. coli Molecular Weight 15kDa (Reducing) Purity 95% by SDS PAGE Endotoxin <0. 1EU g Conjugation Unconjugated Tag No Tag Physical Appearance Lyophilized Powder Storage Buffer 20mM Tris, 100mM

Product Specification


Species Human
Antigen GM-CSF
Synonyms GM-CSF, Granulocyte Macrophage Colony Stimulating Factor, CSF-2, MGI-1GM, Pluripoietin-alpha, Molgramostin, Sargramostim Ala18-Glu144
Accession P04141
Amino Acid Sequence

Ala18-Glu144

Expression System E.coli
Molecular Weight

15kDa (Reducing)

Purity >95% by SDS-PAGE
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag No Tag
Physical Appearance Lyophilized Powder
Storage Buffer

20mM Tris, 100mM NaCl, pH8.0

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.Robertson S A. (2007) GM-CSF regulation of embryodevelopment and pregnancy. Cytokine Growth Factor Rev. 18(3-4): 287-298.

2.Waller E K. (2007) The role of sargramostim (rhGM-CSF)as immunotherapy. Oncologist. 12: 22-26.

3.Clive K S. et al. (2010) Use of GM-CSF as anadjuvant with cancer vaccines: beneficial or detrimental? Expert Rev Vaccines.9(5): 519-525.

Background

Granulocyte-macrophage colony-stimulating factor (GM-CSF), also known as colony-stimulating factor 2 (CSF2), is a monomeric glycoprotein secreted by macrophages, T cells, mast cells, natural killer cells, endothelial cells and fibroblasts that functions as a cytokine. GM-CSF was first described as a growth factor that induces the differentiation and proliferation of myeloid progenitors in the bone marrow, which also has an important cytokine effect in chronic inflammatory diseases by stimulating the activation and migration of myeloid cells to inflammation sites, promoting survival of target cells and stimulating the renewal of effector granulocytes and macrophages. GM-CSF receptor is composed of one α chain and one β chain with low and high-affinity binding to GM-CSF, respectively, and the β chain is shared with IL-3 and IL-5 receptor. GM-CSF signals via signal transducer and activator of transcription, STAT5. In macrophages, it has also been shown to signal via STAT3. The cytokine activates macrophages to inhibit fungal survival.


Shipping Notes
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Exchange/Return Notes
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SKU: 55057172270

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4.3 ★★★★★
Based on 25 reviews
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David
Cuba, US
★★★★★ 5
Finally a ball my power chewers cannot destroy
Size: Medium
I have two dogs, an American Bully and an American Pit Bull Terrier, and both of them love to chew. Most balls last a very short time around here before they are shredded or missing big chunks. This one has actually held up. They chase it, tug on it and sit and chew on it, and it is still in one piece with no pieces breaking off. One of my favorite things is being able to put food inside. I add some kibble or small snacks, and they will happily sit and work on it for a long time. It keeps them busy, gives them something safe to chew, and they get a little reward while they play. When they are done, I just rinse it out and it is ready to go again. If you have strong jawed dogs that usually destroy toys, this ball is worth trying. Mine really enjoy it and I feel better knowing they finally have a ball that can keep up with them.
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Reviewed in the United States on November 22, 2025
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Jen Siefert
Port Orchard, US
★★★★★ 5
My dog LOVES this ball
Size: Medium, Size: Medium
Does your dog destroy tennis balls in seconds? Yes? Then your dog NEEDS this ball! It's squishy like a tennis ball, fits in ball launchers (even the cheap ones) and bounces when it hits the ground. My dog has been literally playing with this ball all day and not a single mark on it! The only bad thing is that it does not float. Definitely worth the money! Put it in your cart!
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Reviewed in the United States on March 8, 2026
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Wolf-Haven
Omaha, US
★★★★★ 5
Perfect for ball demolishers
Size: Medium
The dogs love the chuck it brand. I don’t know what it’s made of but they go crazy over them. Will not play with another ball. Wonder if it’s “laced” with an addictive scent. Have pits. Very durable. Not able to chew to pieces. Last for about 6 months before there is a small break. I keep a back up because when the ball goes missing the house is in chaos. 😆 🤪
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Reviewed in the United States on March 27, 2026
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Tatiana
Birmingham, US
★★★★★ 5
Most durable ball!
Size: Medium
This are my dogs fav ball 😍 they last forever!
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Reviewed in the United States on April 23, 2026
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Nana
Waukegan, US
★★★★★ 4
Chuckit medium rebound balls
Size: Medium
My 8 month old German shepherd dog loves these balls. They are easy to throw, they bounce great, they are very chewable! She keeps one in her mouth most of the time. It satisfies her need to chew and she does not chew other things. She drops it in the water and lets the hole fill up and drinks that way. The only problem that has caused is suction in her mouth and difficulty in dislodging it for her. However, she would be lost without it!
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Reviewed in the United States on April 19, 2023

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