Mouse LAIR1 Antibody

Recombinant Monoclonal Antibody
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Mouse LAIR1 Antibody Summary

Species Reactivity
Detects mouse LAIR1 in direct ELISAs.
Recombinant Monoclonal Rabbit IgG Clone # 2459B
Protein A or G purified from cell culture supernatant
Mouse myeloma cell line NS0-derived mouse LAIR1
Gln22-Tyr141 & Ser25-Tyr141
Accession # Q8BG84
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.


Recommended Concentration
Blockade of Receptor-ligand Interaction
In a functional ELISA binding assay, 1-8 μg/mL of this antibody will block 50% of the binding of 2 μg/mL of Recombinant Mouse LAIR1 (Catalog # 4016-LR) to immobilized Bovine Collagen-I coated at 10 μg/mL (100 µL/well). At 30 μg/mL, this antibody will block >90% of the binding.

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

Reconstitute at 0.5 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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: LAIR1

Leukocyte-associated Ig-like receptor-1 (LAIR1; also CD305) is a 46 kDa inhibitory receptor of the Ig superfamily that is structurally related to inhibitory members of KIR and ILT/CD85 families (1-3). It is expressed on immune cells, including NK cells, T cells, B cells, monocytes, immature neutrophils, dendritic cells and most thymocytes (2-4). The 253 amino acid (aa) type I transmembrane (TM) protein contains a 21 aa signal sequence, a 124 aa extracellular domain (ECD), a 20 aa TM domain and a 98 aa cytoplasmic domain. The ECD includes one C2-type Ig-like domain and two potential N-linked glycosylation sites. Tyrosine phosphorylation of two cytoplasmic ITIM motifs results in recruitment of phosphatases and down-regulation of signaling through activating receptors (2, 3, 5). Crosslinking of LAIR1 inhibits processes such as B cell receptor-mediated activation, NK cell and T cell cytotoxicity and basophil degranulation (1-3). Four mouse LAIR1 splice variants have been identified, but it is not known whether they are expressed as proteins (3). LAIR1b, which is the major alternate transcript, lacks most of the ECD. Of the minor transcripts, LAIR1c lacks a signal sequence, and LAIR1d and 1e lack a TM sequence. All mouse splice forms are identical in the last 90 aa of the cytoplasmic domain. LAIR1 shows high‑affinity binding of collagens that results in inhibition of degranulation in a basophilic leukemia cell line (6). Human and mouse LAIR1 ECD share only 32% aa identity but, where studied, sites of expression and activity are similar (3-6). Mouse LAIR1 ECD also shares 62%, 31% and 28% aa identity with rat, canine, and bovine orthologs, respectively.

  1. Meyaard, L. (2003) J. Biol. Regul. Homeost. Agents 17:330.
  2. Meyaard, L. et al. (1997) Immunity 7:283.
  3. Lebbink, R.J. et al. (2004) J. Immunol. 172:5535.
  4. Verbrugge, A. et al. (2006) J. Leukoc. Biol. 79:828.
  5. Verbrugge, A. et al. (2003) Int. Immunol. 15:1349.
  6. Lebbink, R.J. et al. (2006) J. Exp. Med. 203:1419.
Long Name
Leukocyte-associated Ig-like Receptor 1
Entrez Gene IDs
3903 (Human); 52855 (Mouse); 574531 (Rat); 102136964 (Cynomolgus Monkey)
Alternate Names
CD305 antigen; CD305; CD305leukocyte-associated Ig-like receptor 1; HLAIR1; LAIR1; LAIR-1; leukocyte-associated immunoglobulin-like receptor 1

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Mouse LAIR1 Antibody
By Anonymous on 08/17/2020
Application: protein to protein interaction Sample Tested: 7TD1 mouse hybridoma cell line Species: Human