Recombinant Human Trappin-2/Elafin Protein

Cat. No.: rp145512
AVAILABLE TO ORDER
GRADE & PURITY Animal Free ? Animal-free — produced without animal-derived components to reduce contamination risk. Use in biomanufacturing and culture avoiding animal-origin material. Carrier Free ? Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays. Bioactive ? Bioactive grade — verified to retain biological activity in functional assays. Use when the molecule must be functionally active, not just pure. ActiBioPure™ ? ActiBioPure™ — Aladdin's premier line for bioactive and recombinant products. Use when both high purity and preserved biological activity are required. His Tag ? His tag grade — recombinant protein bearing a His tag for affinity purification/detection. Use to purify, immobilize, or detect the tagged protein. ≥95%(SDS-PAGE)
Expression System
HEK293
Accession #
P19957
Protein Tag
C-10His
Expression system
HEK293
Endotoxin Concentration
<0.1 EU/μg
Bioactivity
Measured by its ability to inhibit neutrophil elastase cleavage of the fluorogenic peptide substrate, MeOSuc-Ala-Ala-Pro-Val-7-amido-4-methylcoumarin (MeOSuc-AAPV-AMC). The IC50 value is <50 nM, as measured under the described conditions.
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
10μg
rp145512-10μg
3
$227.90
50μg
rp145512-50μg
3
$611.90
100μg
rp145512-100μg
2
$979.90
1mg
rp145512-1mg
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$4,939.90
Enter a quantity for the sizes you want to add.
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Why this grade

Animal Free,Carrier Free,Bioactive,ActiBioPure™,His-Tag,≥95%(SDS-PAGE) ActiBioPure™,Animal Free,Bioactive,Carrier Free,His Tag for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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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

Function
Neutrophil and pancreatic elastase-specific inhibitor of skin. It may prevent elastase-mediated tissue proteolysis.

Specifications

Product Name
Recombinant Human Trappin-2/Elafin Protein
Synonyms
Elastase-specific inhibitor | ESI | Peptidase inhibitor 3 | PI-3 | Protease inhibitor WAP3 | SKALP | Skin-derived antileukoproteinase | WAP four-disulfide core domain protein 14 | cementoin | Elafin | Elastase-specific inhibitor | ESI | ESIWAP four-disulf
Grade
ActiBioPure™, Animal Free, Bioactive, Carrier Free, His Tag
Specifications & Purity
Animal Free, Carrier Free, Bioactive, ActiBioPure™, His-Tag, ≥95%(SDS-PAGE)
Bioactivity
Measured by its ability to inhibit neutrophil elastase cleavage of the fluorogenic peptide substrate, MeOSuc-Ala-Ala-Pro-Val-7-amido-4-methylcoumarin (MeOSuc-AAPV-AMC). The IC50 value is <50 nM, as measured under the described conditions.
Endotoxin Concentration
<0.1 EU/μg
Expression System
HEK293
Species
Human
Amino Acids
23-117 aa
Sequence
AVTGVPVKGQDTVKGRVPFNGQDPVKGQVSVKGQDKVKAQEPVKGPVSTKPGSCPIILIRCAMLNPPNRCLKDTDCPGIKKCCEGSCGMACFVPQHHHHHHHHHH
Protein Tag
C-10His
Accession #
Predicted molecular weight
11 kDa
SDS-PAGE
13 kDa and 16 kDa under reducing conditions.
Molecule Type
Protein
Storage and Shipping
Shape
Liquid
Reconstitution
Reconstitute in sterile water to a concentration of 0.1-0.5 mg/ml.
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at -20~-80℃ for more than 1 year. Upon receipt, it is recommended to aliquot. Avoid freeze/thaw cycle.
Images

Recombinant Human Trappin-2/Elafin Protein (rp145512) - SDS-PAGE
2 μg/lane of Recombinant Human Trappin-2/Elafin Protein was resolved with SDS-PAGE under reducing (R) conditions and visualized by Coomassie® Blue staining, showing the band at 15 kDa.

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
ZJ25F0723678Certificate of AnalysisMay 20, 2026 rp145512
ZJ25F0723679Certificate of AnalysisMay 20, 2026 rp145512
ZJ25F0723680Certificate of AnalysisMay 20, 2026 rp145512
Solution Calculators
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