EphA8 Protein, Human (sf9, His-GST)

The EPHA8 protein is a receptor tyrosine kinase that promiscuously binds to the GPI-anchored ephrin-A ligand to initiate bidirectional signaling. It participates in forward and reverse signaling pathways and is phosphorylated by ligands such as EFNA2, EFNA3, and EFNA5. EphA8, Human (sf9, His-GST) is the recombinant human-derived EphA8 protein, expressed by sf9 insect cells, with N-Avi labeled tag.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: sf9 insect cells
  • Storage:
    Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Help & FAQs

Biological Activity

Description

The EPHA8 protein is a receptor tyrosine kinase that promiscuously binds to the GPI-anchored ephrin-A ligand to initiate bidirectional signaling. It participates in forward and reverse signaling pathways and is phosphorylated by ligands such as EFNA2, EFNA3, and EFNA5. EphA8, Human (sf9, His-GST) is the recombinant human-derived EphA8 protein, expressed by sf9 insect cells, with N-Avi labeled tag.

Background

The EphA8 protein, a receptor tyrosine kinase, engages in promiscuous binding to GPI-anchored ephrin-A family ligands on adjacent cells, initiating contact-dependent bidirectional signaling. The downstream pathway originating from the receptor is termed forward signaling, while the pathway downstream of the ephrin ligand is referred to as reverse signaling. GPI-anchored ephrin-A ligands, including EFNA2, EFNA3, and EFNA5, demonstrate the ability to activate EPHA8 through phosphorylation. EPHA8, in conjunction with EFNA5, may regulate integrin-mediated cell adhesion and migration on fibronectin substrates, as well as neurite outgrowth. In the development of the nervous system, EPHA8 also plays a crucial role in axon guidance. Downstream effectors of the EPHA8 signaling pathway include FYN, which promotes cell adhesion upon activation by EPHA8, and the MAP kinases, contributing to the stimulation of neurite outgrowth.

Technical Parameters

  • Species Human
  • Source sf9 insect cells
  • Tag N-His;N-GST
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • His-GST
    • (S571-R924)
      Accession # P29322-1
    • C-term
  • Protein Length

    Partial

  • Synonyms

    EPHA8; EK3; Prev. EEK; Hydroxyaryl-Protein Kinase; Hek3; Protein-Tyrosine Kinase; Tyrosine-Protein Kinase Receptor EEK; Tyrosylprotein Kinase; EPH- And ELK-Related Kinase; KIAA1459; Ephrin Type-A Receptor 8; EphA8; EPH-Like Kinase 3; HEK3; EPH Receptor A8

  • AA Sequence

    SKAFQDSDEEKMHYQNGQAPPPVFLPLHHPPGKLPEPQFYAEPHTYEEPGRAGRSFTREIEASRIHIEKIIGSGDSGEVCYGRLRVPGQRDVPVAIKALKAGYTERQRRDFLSEASIMGQFDHPNIIRLEGVVTRGRLAMIVTEYMENGSLDTFLRTHDGQFTIMQLVGMLRGVGAGMRYLSDLGYVHRDLAARNVLVDSNLVCKVSDFGLSRVLEDDPDAAYTTTGGKIPIRWTAPEAIAFRTFSSASDVWSFGVVMWEVLAYGERPYWNMTNRDVISSVEEGYRLPAPMGCPHALHQLMLDCWHKDRAQRPRFSQIVSVLDALIRSPESLRATATVSRCPPPAFVRSCFDLR

  • Purity

    ≥ 85%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Solution.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

Please use rapid thawing with running water to thaw the protein.

Storage & Stability

Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.

Shipping

Shipped with dry ice.

Calculators

Reconstitution Calculator

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

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=
Mass (in vial) Mass (in vial)
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Desired Reconstitution Concentration Desired Reconstitution Concentration
Dilution Calculator

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

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The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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