Recombinant Human Ephrin-A1 Protein

Cat. No.: rp145628
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 #
P20827
Protein Tag
C-His
Expression system
HEK293
Endotoxin Concentration
<0.1 EU/μg
Bioactivity
Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human Ephrin-A1 Protein (rp145628) at 2.0 μg/mL can bind Human EphA1 with the ED50 is 21.1 ng/mL.
Size
Status
Price
Qty
10μg
rp145628-10μg
≥10
$159.90
50μg
rp145628-50μg
3
$299.90
100μg
rp145628-100μg
1
$479.90
1mg
rp145628-1mg
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.
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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
Plays an important role in angiogenesis and tumor neovascularization. The recruitement of VAV2, VAV3 and PI3-kinase p85 subunit by phosphorylated EPHA2 is critical for EFNA1-induced RAC1 GTPase activation and vascular endothelial cell migration and assembly (By similarity). Exerts anti-oncogenic effects in tumor cells through activation and down-regulation of EPHA2. Activates EPHA2 by inducing tyrosine phosphorylation which leads to its internalization and degradation. Acts as a negative regulator in the tumorigenesis of gliomas by down-regulating EPHA2 and FAK. Can evoke collapse of embryonic neuronal growth cones.

Specifications

Product Name
Recombinant Human Ephrin-A1 Protein
Synonyms
EPH-related receptor tyrosine kinase ligand 1 | Immediate early response protein B61 | LERK-1 | TNF alpha-induced protein 4 | Tumor necrosis factor alpha-induced protein 4 | ECKLG | EFL 1 | EFL1 | EFNA 1 | Efna1 | EFNA1_HUMAN | EPH related receptor tyrosi
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 binding ability in a functional ELISA. Immobilized Recombinant Human Ephrin-A1 Protein (rp145628) at 2.0 μg/mL can bind Human EphA1 with the ED50 is 21.1 ng/mL.
Endotoxin Concentration
<0.1 EU/μg
Expression System
HEK293
Species
Human
Amino Acids
19-182 aa
Sequence
DRHTVFWNSSNPKFRNEDYTIHVQLNDYVDIICPHYEDHSVADAAMEQYILYLVEHEEYQLCQPQSKDQVRWQCNRPSAKHGPEKLSEKFQRFTPFTLGKEFKEGHSYYYISKPIHQHEDRCLRLKVTVSGKITHSPQAHDNPQEKRLAADDPEVRVLHSIGHSHHHHHH
Protein Tag
C-His
Accession #
Predicted molecular weight
22 kDa
SDS-PAGE
25 kDa, under reducing conditions; 25 kDa, under non-reducing conditions.
Molecule Type
Protein
Storage and Shipping
Shape
Lyophilized
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 Ephrin-A1 Protein (rp145628) - Protein Bioactivity
Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human Ephrin-A1 Protein (rp145628) at 2.0 μg/mL can bind Human EphA1 with the ED50 is 21.1 ng/mL.

Recombinant Human Ephrin-A1 Protein (rp145628) - SDS-PAGE
3 μg/lane of Recombinant Human Ephrin-A1 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing the band at 25 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
ZJ25F0116959Certificate of AnalysisAug 08, 2026 rp145628
ZJ25F0116960Certificate of AnalysisAug 08, 2026 rp145628
ZJ25F0116961Certificate of AnalysisAug 08, 2026 rp145628
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