Recombinant Human IL-36Ra/IL-1F5 Protein

Cat. No.: rp169668
AVAILABLE TO ORDER
GRADE & PURITY Carrier Free ? Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays. Azide Free ? Azide-free — without sodium azide preservative. Use in conjugations, cell work, or assays where azide is toxic or inhibitory. PBS Only ? PBS-only formulation — supplied in phosphate-buffered saline with no other additives. Use when you need a clean PBS buffer free of stabilizers/carriers. ≥95%(SDS-PAGE)
Expression System
E. coli
Accession #
Q9UBH0
Protein Tag
No tag
Expression system
E. coli
Endotoxin Concentration
<1.0 EU/μg
Bioactivity
Testing in progress
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
10μg
rp169668-10μg
≥10
$137.90
50μg
rp169668-50μg
10
$519.90
100μg
rp169668-100μg
5
$799.90
1mg
rp169668-1mg
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$3,399.90
Enter a quantity for the sizes you want to add.
🧪

Why this grade

Carrier Free,Azide Free,PBS Only,≥95%(SDS-PAGE) Azide Free,Carrier Free,PBS Only for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Purity: >95%, by SDS-PAGE visualized with Coomassie® Blue Staining
Description:
Human interleukin-36 receptor antagonist [IL-36Ra; previously IL-1F5 and also named FIL-1δ (delta), IL1HY1, IL1H3, and IL-1L1] is a member of the IL1 family of proteins. IL1 family members include IL-1 beta, IL-1 alpha, IL-1ra, IL18 and IL-1F5-F10. All family members show a 12 beta -strand, beta -trefoil configuration, and all family members are believed to have arisen from a common ancestral gene that underwent multiple duplications. The human IL36Ra/IL1F5 gene is in closest proximity to the gene for IL-1ra and is likely a relatively recent duplication of the IL-1ra gene. IL-36Ra/IL-1F5 is synthesized as a 155 amino acid (aa) protein that contains no signal sequence, no prosegment and no potential N-linked glycosylation site(s). Nevertheless, it appears to be secreted as a 17 kDa monomer. There is an alternate start site that potentially gives rise to an alternate splice form. The translated product, however, has a premature stop codon, resulting in a truncated 16 aa peptide. Human to mouse, full-length IL-1F5 has 90% aa identity. Within the family, IL-36Ra/IL-1F5 is 50% aa identical to IL-1ra, and 32%, 31%, 35%, 37%, 32% and 42% aa identical to IL-1 beta, IL-36 alpha /IL1F6, IL37/IL1F7, IL36 beta /IL1F8, IL36 gamma /IL1F9 and IL1F10, respectively. Cells reported to express IL36Ra/IL-1F5 include monocytes, B cells, dendritic cells/Langerhans cells, keratinocytes, and gastric fundus Parietal and Chief cells. The receptor for IL-36Ra/IL-1F5 has not been positively identified. Indirect evidence suggests it is IL-1 Rrp2 and/or IL-1 RAcP. In either case, activity association with receptor binding is also unclear. It was initially reported to be an antagonist of IL36 gamma /IL1F9 activity. This would be consistent with its hypothesized relationship to IL1ra. Studies, however, find IL-36Ra/IL-1F5 antagonist activity difficult to demonstrate.

Specifications

Product Name
Recombinant Human IL-36Ra/IL-1F5 Protein
Synonyms
interleukin 1 family, member 5 (delta) | interleukin 1, delta | Interleukin 36 Receptor Antagonist | interleukin-1 family member 5 | Interleukin-1 receptor antagonist homolog 1 | Interleukin-1-like protein 1 | Interleukin-36 Receptor Antagonist | Interleu
Grade
Azide Free, Carrier Free, PBS Only
Specifications & Purity
Carrier Free, Azide Free, PBS Only, ≥95%(SDS-PAGE)
Bioactivity
Testing in progress
Endotoxin Concentration
<1.0 EU/μg
Expression System
E. coli
Amino Acids
2-155 aa
Sequence
VLSGALCFRMKDSALKVLYLHNNQLLAGGLHAGKVIKGEEISVVPNRWLDASLSPVILGVQGGSQCLSCGVGQEPTLTLEPVNIMELYLGAKESKSFTFYRRDMGLTSSFESAAYPGWFLCTVPEADQPVRLTQLPENGGWNAPITDFYFQQCD
Protein Tag
No tag
Accession #
Predicted molecular weight
16.8 kDa
SDS-PAGE
14.2 kDa,  under reducing conditions; 14.0 &14.3 kDa,  under reducing conditions
Molecule Type
Protein
Storage and Shipping
Shape
Lyophilized
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute at 1.0 mg/mL in sterile distilled water. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at -20°C stable up to 1 year. Avoid freeze / thaw cycle.
Images

Recombinant Human IL-36Ra/IL-1F5 Protein (rp169668) - SDS-PAGE
3 μg/lane of Recombinant Human IL-36Ra/IL-1F5 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 14.2 kDa under reducing conditions and 14.0 & 14.3 kDa under non-reducing conditions.

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot NumberCertificate TypeDateItem
ZJ24F0404522Certificate of AnalysisApr 19, 2024 rp169668
ZJ24F0404521Certificate of AnalysisApr 19, 2024 rp169668
ZJ24F0404520Certificate of AnalysisApr 19, 2024 rp169668
Documents & Articles
Solution Calculators
Reviews

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