Human Siglec-11 Biotinylated Antibody

Catalog # Availability Size / Price Qty
BAF3258
Product Details
Citations (1)
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Human Siglec-11 Biotinylated Antibody Summary

Species Reactivity
Human
Specificity
Detects human Siglec‑11 in Western blots. In Western blots, approximately 50% cross-reactivity with recombinant human (rh) Siglec-10 is observed and less than 5% cross-reactivity with rhSiglec-2, -3, -6, -7, -9 and recombinant mouse Siglec-F is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
Chinese hamster ovary cell line CHO-derived recombinant human Siglec-11
Asn17-His543 (Glu84Ala, Lys145Gln)
Accession # Q96RL6
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Label
Biotin

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Human Siglec‑11 Fc Chimera (Catalog # 3258-SL)
Flow Cytometry
2.5 µg/106 cells
Human peripheral blood monocytes

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.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it 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-11

Siglecs (sialic acid binding Ig-like lectins) are I-type lectins that belong to the immunoglobulin superfamily. They are characterized by an N‑terminal Ig-like V-set domain which mediates sialic acid binding, followed by a varying numbers of Ig-like C2-set domains. Siglecs‑3 and 5‑13 constitute the CD33/Siglec-3 related group, which are defined by their sequence homology and differential expression in the ematopoietic system (1‑3). Mature human Siglec-11 consists of a 534 amino acid (aa) extracellular domain (ECD), a 23 aa transmembrane segment, and a 114 aa cytoplasmic domain. The ECD contains one Ig-like V-set domain, and three Ig-like C2-set domains. The cytoplasmic domain contains two immunoreceptor tyrosine-based inhibitory motifs (ITIMs) (4). A splice variant of Siglec-11 has a deletion of nearly 100 aa in the extracellular juxtamembrane region. Among siglecs, the ECD of Siglec-11 is most closely related to that of Siglec-10 (82% aa sequence identity). The cytoplasmic domains of these proteins are only 20% identical. Siglec-11 is closely related to the pseudogenes Siglec-14 and Siglec-16 (4, 5). Human Siglec-11 shares 90%‑96% aa sequence identity with Siglec-11 from great apes. Rodent orthologs of Siglec-11 have not been identified. In human, Siglec-11 is expressed in tissue macrophages, brain microglia, and inflammatory site monocytes (4). Strong microglial expression is specific to humans, as it is less prominent or absent in chimpanzees and orangutans (5). Siglec-11 forms 180 kDa disulfide-linked dimers. It shows a strong binding preference for sialic acid in alpha 2-8 linkage which is unusual for siglecs (4). A conserved arginine in the Ig-like V-set domain only partially contributes to Siglec-11 ligand recognition, in contrast to its being required in other siglecs (4). Tyrosine phosphorylation of the cytoplasmic region of Siglec-11 promotes association with the phosphatases SHP-1 and SHP-2 (4).

References
  1. Varki, A. and T. Angata (2006) Glycobiology 16:1R.
  2. Crocker, P.R. (2005) Curr. Opin. Pharmacol. 5:431.
  3. Crocker, P.R. (2002) Curr. Opin. Struct. Biol. 12:609.
  4. Angata, T. et al. (2002) J. Biol. Chem. 277:24466.
  5. Hayakawa, T. et al. (2005) Science 309:1693.
Long Name
Sialic Acid Binding Ig-like Lectin 11
Entrez Gene IDs
114132 (Human)
Alternate Names
sialic acid binding Ig-like lectin 11; sialic acid-binding Ig-like lectin 11; Sialic acid-binding lectin 11; Siglec11; Siglec-11

Product Datasheets

Citation for Human Siglec-11 Biotinylated 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.

1 Citation: Showing 1 - 1

  1. Expression of Siglec-11 by human and chimpanzee ovarian stromal cells, with uniquely human ligands: implications for human ovarian physiology and pathology.
    Authors: Wang X, Chow R, Deng L, Anderson D, Weidner N, Godwin AK, Bewtra C, Zlotnik A, Bui J, Varki A, Varki N
    Glycobiology, 2011;21(8):1038-48.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC-P

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