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Siglec-2/CD22 Protein, Mouse (AAA02562.1, HEK293, His)

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Siglec-2/CD22 Protein mediates B-cell B-cell interaction and may be involved in the localization of B-cells in lymphoid tissues. Siglec-2/CD22 Protein, Mouse (AAA02562.1, HEK293, His) is the recombinant mouse-derived Siglec-2/CD22 protein, expressed by HEK293 , with C-6*His labeled tag.

For research use only. We do not sell to patients.
  • Species: Mouse
  • 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.
  • Siglec-2/CD22 Protein, Mouse (AAA02562.1, HEK293, His) Product Image
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To place orders, for customer services and technical support, please contact: MedChemExpress USA

Tel: 609-228-6898 E-mail: [email protected] [email protected]

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To place orders, for customer services and technical support, please contact:

609-228-6898
[email protected] [email protected]
Find Your Local Distributor Your local distributor: Hycultec GmbHHycultec
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs
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Biological Activity

Description

Siglec-2/CD22 Protein mediates B-cell B-cell interaction and may be involved in the localization of B-cells in lymphoid tissues[1]. Siglec-2/CD22 Protein, Mouse (AAA02562.1, HEK293, His) is the recombinant mouse-derived Siglec-2/CD22 protein, expressed by HEK293 , with C-6*His labeled tag.

Background

Siglec-2/CD22 Protein is a B-cell restricted glycoprotein that is expressed in the cytoplasm of progenitor B and pre-B cells and on the surface of mature B cells[2]. Siglec-2/CD22 Protein is an adhesion molecule that preferentially binds alpha 2,6- linked sialic acid on the same (cis) or adjacent (trans) cells[3]. Siglec-2/CD22 Protein is a coreceptor that physically interacts with B-cell receptor (BCR) and is rapidly phosphorylated upon BCR ligation. It negatively regulates BCR signals by recruiting tyrosine phosphatase SHP-1 to its ITIMs[4].

Technical Parameters

  • Species Mouse
  • Source HEK293
  • Tag C-6*His
  • Accession

    AAA02562.1 (S22-R702)

  • Gene ID
    12483  [NCBI]
  • Molecular Construction
    • N-term
    • CD22 (S22-R702)
      Accession # AAA02562.1
    • 6*His
    • C-term
  • Protein Length

    Partial Extracellular Domain

  • Synonyms

    CD22; B-Lymphocyte Cell Adhesion Molecule; CD22 Molecule; T-Cell Surface Antigen Leu-14; SIGLEC2; BL-CAM; Sialic Acid-Binding Ig-Like Lectin 2; Sialic Acid Binding Ig-Like Lectin 2; B-Cell Receptor CD22; CD22 Protein; CD22 Antigen; Siglec-2; SIGLEC-2

  • AA Sequence

    SANDWTVDHPQTLFAWEGACIRIPCKYKTPLPKARLDNILLFQNYEFDKATKKFKGTVLYNKAEPELYPPKQRRVTFLGNSIDNCTLKIHPIRANDSGNLGLRMTAGTERWMEPIHLNVSEKPFQPYIQMPSEIRESQSVTLTCGLNFSCFEYDILLQWFLEDSKITSVTPSVTSITSSVTSSIKNVYTESKLTFQPKWTDHGKSVKCQVQHSSEVLSERTVRLDVKYTPKLEIKVNPTEVEKNNSVTMTCRVNSSNPKLRTVAVSWFKDGRPLEDQELEQEQQMSKLILHSVTKDMRGKYRCQASNDIGPGESEEVELTVHYAPEPSRVHIYPSPAEEGQSVELICESLASPSATNYTWYHNRKPIPGDTQEKLRIPKVSPWHAGNYSCLAENRLGHGKIDQEAKLDVHYAPKAVTTVIQSFTPILEGDSVTLVCRYNSSNPDVTSYRWNPQGSGSVLKPGVLRIQKVTWDSMPVSCAACNHKCSWALPVILNVHYAPRDVKVLKVSPASEIRAGQRVLLQCDFAESNPAEVRFFWKKNGSLVQEGRYLSFGSVSPEDSGNYNCMVNNSIGETLSQAWNLQVLYAPRRLRVSISPGDHVMEGKKATLSCESDANPPISQYTWFDSSGQDLHSSGQKLRLEPLEVQHTGSYRCKGTNGIGTGESPPSTLTVYYSPETIGKR

  • Predicted Molecular Mass

    77.3 kDa

  • Molecular Weight

    Approximately 100-120 kDa, based on SDS-PAGE under reducing conditions.

  • Glycosylation

    Yes

  • Purity

    ≥ 95%, 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

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Dilution Calculator

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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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Measured by its ability to inhibit anti-CD3-induced proliferation of stimulated CTLL-2 mouse cytotoxic T cells. The ED50 this effect is 0.8023 μg/ml, corresponding to a specific activity is 1246.42 units/mg.

Assay Types
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  • Siglec-2/CD22 Protein, Mouse (AAA02562.1, HEK293, His) Product Image