SUSD4 Protein, Human (HEK293, Fc)

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SUSD4 protein acts as a complement inhibitor by disrupting classical C3 convertase formation. Isoform 3 specifically inhibits the classical complement pathway, and membrane-bound isoform 1 inhibits C3b deposition through classical and alternative pathways, showcasing SUSD4's regulatory role in complement activation and potential significance in immune response modulation. SUSD4 Protein, Human (HEK293, Fc) is the recombinant human-derived SUSD4 protein, expressed by HEK293 , with C-mFc labeled tag.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: HEK293
  • Storage:
    Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs

Biological Activity

Description

SUSD4 protein acts as a complement inhibitor by disrupting classical C3 convertase formation. Isoform 3 specifically inhibits the classical complement pathway, and membrane-bound isoform 1 inhibits C3b deposition through classical and alternative pathways, showcasing SUSD4's regulatory role in complement activation and potential significance in immune response modulation. SUSD4 Protein, Human (HEK293, Fc) is the recombinant human-derived SUSD4 protein, expressed by HEK293 , with C-mFc labeled tag.

Background

SUSD4 protein functions as a complement inhibitor by disrupting the formation of the classical C3 convertase. The isoform 3 of SUSD4 specifically inhibits the classical complement pathway, while the membrane-bound isoform 1 plays a role in inhibiting the deposition of C3b through both the classical and alternative complement pathways. These activities underscore the regulatory role of SUSD4 in modulating complement activation and highlight its potential significance in immune response modulation.

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag C-mFc
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • SUSD4 (F42-F290)
      Accession # Q5VX71-3
    • mFc
    • C-term
  • Protein Length

    Full Length of Sushi domain-containing protein 4 Chain

  • Synonyms

    SUSD4; Testicular Secretory Protein Li 55; Sushi Domain Containing 4; YHGM196; Sushi Domain-Containing Protein 4; PRO222; FLJ10052

  • AA Sequence

    FGPAQLTGGFDDLQVCADPGIPENGFRTPSGGVFFEGSVARFHCQDGFKLKGATKRLCLKHFNGTLGWIPSDNSICVQEDCRIPQIEDAEIHNKTYRHGEKLIITCHEGFKIRYPDLHNMVSLCRDDGTWNNLPICQGCLRPLASSNGYVNISELQTSFPVGTVISYRCFPGFKLDGSAYLECLQNLIWSSSPPRCLALEGGRPEHLFPVLYFPHIRLAAAVLYFCPVLKSSPTPAPTCSSTSTTTSLF

  • Predicted Molecular Mass

    53.1 kDa

  • Molecular Weight

    Approximately 67, based on SDS-PAGE under reducing conditions.

  • Glycosylation

    Yes

  • Purity

    ≥ 90%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Calculators

Reconstitution Calculator

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

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

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

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