SKU: 34854578351

FLT-3L Protein, Human

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Description

FLT-3L Protein, HumanProduct Specification Species Human Synonyms Fms related tyrosine kinase 3 ligand,Flt3 ligand,Flt3L,SL cytokine, Accession P49771 Amino Acid Sequence Thr27 Pro185, with C terminal hFc Tag Expression System HEK293 Molecular Weight 55 65 kDa (Reducing) Purity >95% by SDS PAGE and HPLC. Endotoxin <0. 1EU g Conjugation Unconjugated Tag Human Fc Tag Physical Appearance Lyophilized powder Storage Buffer PBS, pH7. 4 Reconstitution Reconstitute at 0. 1 1 mg

Product Specification


Species Human
Synonyms Fms-related tyrosine kinase 3 ligand,Flt3 ligand,Flt3L,SL cytokine,
Accession P49771
Amino Acid Sequence Thr27-Pro185, with C-terminal hFc Tag
Expression System HEK293
Molecular Weight

55-65 kDa (Reducing)

Purity >95% by SDS-PAGE and HPLC.
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag Human Fc 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

Blood. 2002 Sep 1;100(5):1532-42.
Nature. 1994 Apr 14;368(6472):643-8.

Background

Fms-like tyrosine kinase 3 ligand (Flt-3 Ligand, or FLT3L) is an alpha-helical cytokine that regulates hematopoiesis by promoting the survival, proliferation, and differentiation of hematopoietic stem and progenitor cells (including dendritic cells, NK cells, and B cells) through binding to the Flt3 receptor (Flt3/Flk-2) and activating the STAT3 signaling pathway. It is expressed as a noncovalently-linked dimer by T cells and bone marrow/thymic fibroblasts and exists in both transmembrane and soluble forms. FLT3L synergizes with other cytokines (e.g., IL-3, GM-CSF, SCF, IL-2, IL-6, IL-7, and IL-15) to enhance hematopoietic cell mobilization, differentiation, and immune cell development.
Recombinant human FLT3L is used in hematopoietic stem cell (HSC) culture expansion (e.g., with SCF and TPO) and dendritic cell (DC) differentiation (e.g., for immunotherapy applications). FLT3L has also been explored as an adjuvant in therapeutic vaccines (e.g., cancer and infectious disease vaccines) to enhance antigen-specific T cell responses or DC mobilization.

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SKU: 34854578351

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Sarah A
Chelsea, US
★★★★★ 5
Great fun for my small pup
Color: Egg Balls
My 15lb Pom loves anything that sqweeks so these little eggs are perfect for him. They are fun to throw since they bounce in all different directions. Considering how many you get it's worth purchasing
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Reviewed in the United States on January 31, 2026
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Casandra L.
Cuba, US
★★★★★ 5
dogs have fun with them
Color: Smile Face Balls
They are a cute product. Do not give to large dogs. Made for tiny breeds. I dog sit and the dogs who are allowed to play with them go nuts when I get them out and give a sqeeze. The toys are holding up well too.
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Reviewed in the United States on April 22, 2026
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J_B_Cran
Draper, US
★★★★★ 5
Love.
Color: Pig Balls
My frenchies love these and large enough not to worry about choking. Also the squeaker lasts longer than most of their latex toys so good or bad, I think it’s good.
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Reviewed in the United States on April 21, 2026
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vvickib54
New York, US
★★★★★ 5
Puppy Favorite!
Color: Funny Face Balls
Just the right size for a cocker puppy to fit in her mouth (3 mos. old) and squeak. She will do this indefinitely if I let her, lol! Seems to be very satisfying for her. I can only take so much of it but she loves them. Also bounces erratically when you toss it which she loves.
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Reviewed in the United States on August 25, 2025
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Dave
Bozeman, US
★★★★★ 5
One Tough Ball!
Color: Blue
Our dogs are loving this ball. Our 1 yr old hound is a world-class chewer and he can't make a dent in this ball. The interactive buzzing and bouncing keeps them entertained for long durations. It's a mite noisy but the barking from the 1 yr old is much louder, lol. Even turned off, they like playing with it and chewing on it. Based on the tough construction, we think it will last much longer than traditional chew balls.
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Reviewed in the United States on March 22, 2026

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