SKU: 33783517776

IL-4 Protein, Human

Sale price$112.50 Regular price$125.00
Save 10%

Pay in installments of $31.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 27 - Oct 2

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

IL-4 Protein, HumanProduct Specification Species Human Synonyms IL4; IL 4; interleukin 4; MGC79402; pitrakinra; B cell growth factor 1; BCDF; BCGF1; BCGF 1; binetrakin; BSF1; BSF 1; BSF 1 Accession P05112 1 Amino Acid Sequence His25 Ser153 Expression System HEK293 Molecular Weight The protein has a predicted MW of 14. 96 kDa. Due to glycosylation, the protein migrates to 23 25 kDa based on Bis Tris PAGE result. Purity > 95% as determined by Bis Tris PAGE& HPLC Endotoxin

Product Specification


Species Human
Synonyms IL4; IL-4; interleukin 4; MGC79402; pitrakinra; B cell growth factor 1; BCDF; BCGF1; BCGF-1; binetrakin; BSF1; BSF-1; BSF-1
Accession P05112-1
Amino Acid Sequence

His25-Ser153

Expression System HEK293
Molecular Weight The protein has a predicted MW of 14.96 kDa. Due to glycosylation, the protein migrates to 23-25 kDa based on Bis-Tris PAGE result.
Purity > 95% as determined by Bis-Tris PAGE& HPLC
Endotoxin <1EU/μg
Conjugation Unconjugated
Tag No Tag
Physical Appearance Lyophilized powder
Storage Buffer

PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.

Reconstitution Reconstitute no more than 1 mg/mL according to the size in deionized water after rapid centrifugation.
Stability & Storage
12 months from date of receipt, -20 to -70 °C as supplied.
3 months, -20 to -70 °C under sterile conditions after reconstitution.
1 week, 2 to 8 °C under sterile conditions after reconstitution.
Please avoid repeated freeze-thaw cycles.

Background

Interleukin-4, also known as IL4, is a secreted protein which belongs to the IL-4 / IL-13 family. Interleukin-4 / IL4 has many biological roles, including the stimulation of activated B-cell and T-cell proliferation.In the presence of IL-4 and IL-13, cytokines that are produced in a Th-2 type response, particularly during allergy and parasitic infections, macrophages become differentially activated, And this cytokine is a ligand for interleukin 4 receptor.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 33783517776

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 11 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
C Oregon
Natrona Heights, US
★★★★★ 5
Great Pillow!
Size: King (Pack of 1)
Excellent product. I have been searching for a pillow that wasn't too soft or too hard and supported my neck. I now wake up without a stiff neck and a headache. Wonderful!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
L
Verified Purchase
Lcm
West Palm Beach, US
★★★★★ 4
Comfortable
Size: King (Pack of 1)
An adjustable pillow
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 12, 2024
A
Verified Purchase
Anna Revels
Cuba, US
★★★★★ 5
Pillow
Size: King (Pack of 1)
Love it! Great support.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
T
Verified Purchase
Tracy V.
Natrona Heights, US
★★★★★ 1
Doesn't last long
Size: King (Pack of 1), Size: King (Pack of 1)
I have only had this pillow for 8 month and it is flat and not comfortable anymore. I sent the company an email and they never responded. I do now recommend that you buy this pillow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2024
J
Verified Purchase
jimmy egan
Charlottesville, US
★★★★★ 2
The pillows have a chemical smell
Size: King (Pack of 1)
I bought two Marlow pillows a while ago. They are great pillows. The two new Marlow pillows I just purchased have a chemical odor. The manufacture date is Sept. 2024. I have them airing out hoping the smell will dissipate , so far that has not happened.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 28, 2025

recommand products