Human Siglec-7/CD328 Antibody

Catalog # Availability Size / Price Qty
MAB1138
MAB1138-SP
Product Details
Citations (4)
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Human Siglec-7/CD328 Antibody Summary

Species Reactivity
Human
Specificity
Detects human Siglec‑7/CD328 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human Siglec-2, -3, -5, or -9 is observed.
Source
Monoclonal Mouse IgG2B Clone # 194212
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant human Siglec‑7/CD328
Gln19-Gly357 (predicted)
Accession # Q9Y286
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
Recombinant Human Siglec‑7 Fc Chimera (Catalog # 1138-SL)

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
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Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Siglec-7/CD328

Siglecs (1) (sialic acid binding Ig-like lectins) are I-type (Ig-type) lectins belonging to the Ig superfamily. They are characterized by an N-terminal Ig-like V-type domain which mediates sialic acid binding, followed by varying numbers of Ig-like C2-type domains (1, 2). Eleven human Siglecs have been cloned and characterized. They are sialoadhesin/CD169/Siglec-1, CD22/Siglec-2, CD33/Siglec-3, Myelin-Associated Glycoprotein (MAG/Siglec-4a) and Siglecs 5 to 11 (1‑4). To date, no Siglec has been shown to recognized any cell surface ligand other than sialic acids, suggesting that interactions with glycans containing this carbohydrate are important in mediating the biological functions of Siglecs. Siglecs 5 to 11 share a high degree of sequence similarity with CD33/Siglec-3 both in their extracellular and intracellular regions. They are collectively referred to as CD33-related Siglecs. One remarkable feature of the CD33-related Siglecs is their differential expression pattern within the hematopoietic system (2, 3). This fact, together with the presence of two conserved immunoreceptor tyrosine-based inhibition motifs (ITIMs) in their cytoplasmic tails, suggests that CD33-related Siglecs are involved in the regulation of cellular activation within the immune system.

The cDNA of human Siglec-7, also known as adhesion inhibitory receptor module-1 (AIRM-1) and designated CD328, encodes a 467 amino acid (aa) polypeptide with a hydrophobic signal peptide, an N-terminal Ig-like V-type domain, two Ig-like C2-type domains, a transmembrane region and a cytoplasmic tail (5). Siglec-7 exists as a monomer on the cell surface and is expressed on natural killer cells, CD8+ T cells and monocytes (3, 5). It binds equally well to both alpha 2,3- and alpha 2,6-linked sialic acid (5). The gene encoding Siglec-7 was mapped to chromosome 19q13.3.

References
  1. Crocker, P.R. et al. (1998) Glycobiology 8:v.
  2. Crocker, P.R. and A. Varki (2001) Trends Immunol. 22:337.
  3. Crocker, P.R. and A. Varki (2001) Immunology 103:137.
  4. Angata, T. et al. (2002) J. Biol. Chem. 277:24466.
  5. Nicoll, G. et al. (1999) J. Biol. Chem. 274:34089.
Long Name
Sialic Acid Binding Ig-like Lectin 7
Entrez Gene IDs
27036 (Human)
Alternate Names
Adhesion inhibitory receptor molecule 1; adhesion inhibitory receptor molecule 1, siglec-7; AIRM1; AIRM-1; AIRM1QA79 membrane protein; CD328 antigen; CD328; CDw328; D-siglec; p75; p75/AIRM1; QA79; sialic acid binding Ig-like lectin 7; sialic acid binding immunoglobulin-like lectin 7; sialic acid-binding Ig-like lectin 7; Siglec7; Siglec-7

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Citations for Human Siglec-7/CD328 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

4 Citations: Showing 1 - 4
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  1. Decidual glycodelin-A polarizes human monocytes towards a decidual macrophage-like phenotype via siglec-7
    Authors: M Vijayan, CL Lee, VHH Wong, X Wang, K Bai, J Wu, H Koistinen, M Seppälä, KF Lee, WSB Yeung, EHY Ng, PCN Chiu
    J. Cell. Sci., 2020-07-23;0(0):.
    Species: Human
    Sample Types: Protein
    Applications: Western Blot
  2. Glycocalyx engineering reveals a Siglec-based mechanism for NK cell immunoevasion.
    Authors: Hudak, Jason E, Canham, Stephen, Bertozzi, Carolyn
    Nat Chem Biol, 2013-11-24;10(1):69-75.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  3. Siglec-7 tetramers characterize B-cell subpopulations and leukemic blasts.
    Eur J Immunol, 2012-07-09;42(8):2176-86.
    Species: Human
    Sample Types: Recombinant Protein
    Applications: Western Blot
  4. CD molecules 2006--human cell differentiation molecules.
    Authors: Zola H, Swart B, Banham A, Barry S, Beare A, Bensussan A, Boumsell L, D Buckley C, Buhring HJ, Clark G, Engel P, Fox D, Jin BQ, Macardle PJ, Malavasi F, Mason D, Stockinger H, Yang X
    J. Immunol. Methods, 2006-12-04;319(1):1-5.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry

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