Siglec-3/CD33 Protein, Human (HEK293, mFc)
Siglec-3/CD33 Protein, Human (HEK293, mFc) is the recombinant human-derived Siglec-3/CD33 protein, expressed by HEK293, with C-mFc tag.
- Species: Human
- Source: HEK293
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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.
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- Help & FAQs
Biological Activity
Description
Siglec-3/CD33 Protein, Human (HEK293, mFc) is the recombinant human-derived Siglec-3/CD33 protein, expressed by HEK293, with C-mFc tag.
Background
Siglec-3/CD33, a sialic-acid-binding immunoglobulin-like lectin, plays a crucial role in mediating cell-cell interactions and maintaining immune cells in a resting state. It exhibits a preference for binding sialic acid on the short O-linked glycans of specific mucins. The protein forms homodimers through disulfide linkages and interacts with signaling molecules such as PTPN6/SHP-1 and PTPN11/SHP-2 upon phosphorylation. Additionally, CD33 engages with C1QA via its C-terminus, leading to the activation of CD33 inhibitory motifs.
Technical Parameters
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Species Human
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Source HEK293
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Tag C-mFc
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Accession
AAH28152.1 (D18-H259)
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Gene ID/
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Molecular Construction
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N-term
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CD33 (D18-H259)
Accession # AAH28152.1 -
mFc
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C-term
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Protein Length
Extracellular Domain
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Synonyms
CD33; Myeloid Cell Surface Antigen CD33; CD33 Molecule; FLJ00391; SIGLEC3; Gp67; CD33 Antigen (Gp67); CDNA FLJ50122, Highly Similar To Myeloid Cell Surface Antigen CD33; CD33rSiglec; Sialic Acid Binding Ig-Like Lectin 3; SIGLEC-3; CD33 Molecule Transcript
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AA Sequence
DPNFWLQVQESVTVQEGLCVLVPCTFFHPIPYYDKNSPVHGYWFREGAIISGDSPVATNKLDQEVQEETQGRFRLLGDPSRNNCSLSIVDARRRDNGSYFFRMERGSTKYSYKSPQLSVHVTDLTHRPKILIPGTLEPGHSKNLTCSVSWACEQGTPPIFSWLSAAPTSLGPRTTHSSVLIITPRPQDHGTNLTCQVKFAGAGVTTERTIQLNVTYVPQNPTTGIFPGDGSGKQETRAGVVH
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Predicted Molecular Mass
54.6 kDa
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Molecular Weight
Approximately 64-90 kDa, based on SDS-PAGE under reducing conditions,due to the glycosylation.
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Glycosylation
Yes
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Lyophilized powder.
<1 EU/μg, determined by LAL method.
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).
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.
Room temperature in continental US; may vary elsewhere.
Documentation
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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