SKU: 12737311113

SDF-1β/CXCL12 Protein, Human

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Description

SDF-1β/CXCL12 Protein, HumanProduct Specification Species Human Synonyms Stromal cell derived factor 1; SDF 1; hSDF 1; C X C motif chemokine 12; Intercrine reduced in hepatomas (IRH hIRH); Pre B cell growth stimulating factor (PBSF); Accession P48061 Amino Acid Sequence Lys22 Met93 Expression System E. coli Molecular Weight 10 kDa (Reducing) Purity >95% by SDS PAGE. Endotoxin <0. 1EU g Conjugation Unconjugated Tag No Tag Physical Appearance Lyophilized Powder Storage Buffer PBS,

Product Specification


Species Human
Synonyms Stromal cell-derived factor 1; SDF-1; hSDF-1; C-X-C motif chemokine 12; Intercrine reduced in hepatomas (IRH hIRH); Pre-B cell growth-stimulating factor (PBSF);
Accession P48061
Amino Acid Sequence

Lys22-Met93

Expression System E.coli
Molecular Weight

10 kDa (Reducing)

Purity >95% by SDS-PAGE.
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag No Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, pH7.0
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

Nature. 2001 Mar 1;410(6824):50-6.

Background

Stromal Cell-Derived Factor 1 beta (SDF-1β), also known as CXCL12, is a chemokine protein that plays a crucial role in immune cell trafficking, hematopoiesis, and tissue repair. SDF-1β is produced by stromal cells, endothelial cells, and fibroblasts, and acts as a chemoattractant for a variety of immune cells, including lymphocytes, monocytes, and hematopoietic stem cells. SDF-1β binds to its receptor, CXCR4, and regulates cell migration, adhesion, and survival. This chemokine is involved in various physiological and pathological processes, such as inflammation, angiogenesis, and cancer metastasis.

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SKU: 12737311113

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4.2 ★★★★★
Based on 19 reviews
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Product Reviews
V
Verified Purchase
VegasHawkeye
Lowell, US
★★★★★ 5
Picky dog approved!
Color: S6-muti-color, Color: S6-muti-color
I have wasted so much money on dog balls that they won't even pick up! They finally were obsessed with the Kong rubber green/blue or red/blue ones, but they're $3+. each, and they break from the dogs squishing it. I honestly had zero expectations on these, and they BOTH picked them up on the first throw! That's huge!! Seem to work fine in the ChuckIt. As for the squeaker, at first I was like "Oh nooooo." when they both loudly started! Much to my (and my neighbors') happiness, the squeakers stopped working after a couple minutes. 🤣
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2025
W
Verified Purchase
William Lovelace
Belleville, US
★★★★★ 5
Great dog toys
Color: S6-muti-color
These are long lasting, durable dog toys. My dogs love the squeak sound.
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Reviewed in the United States on May 23, 2026
K
Verified Purchase
Karen
Port Orchard, US
★★★★★ 5
Durable
Color: S6-muti-color
The balls are great for chewers. The squeaky didn’t last long but they are perfect for the ball launcher.
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Reviewed in the United States on May 18, 2026
C
Verified Purchase
Candice K
Whiting, US
★★★★★ 4
The squeeker isn't durable, but the balls themselves are.
Color: S6-muti-color, Color: S6-muti-color
I have two 70+lb, ball obsessed dogs (a field bred Golden Retriever, and an Old Time Scotch Collie), and these balls are living up to the abuse they're receiving. In the fall we always lose a ball or two in the yard due to getting lost in leaves or longer grass, so I always try and buy a multi pack at the start of the season, so went with these this year. I'm glad I did. Great price for a 6 pack, they fit the medium Chuck-It launcher (a little loosely, but they throw just fine), have great bounce, they FLOAT (which means I didn't lose any at the beach), and they're super durable to the dreaded "mouth squish." The squeaker dies pretty quick, like, within a day, but it isn't the kind that can fall out or choke your dog, so no worries there. The boys are happy, I'm happy, my wallet is happy - I've already ordered another pack.
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Reviewed in the United States on November 2, 2024
S
Verified Purchase
S. Berg
Birmingham, US
★★★★★ 5
Good balls
Color: S6-glow
My dog is a chewer, and these have held up for close to a year actually a pretty good product
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Reviewed in the United States on May 27, 2026

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