货号 | AF2640 |
别名 | CD300a antigenCMRF35H9; CD300a molecule; CD300a; CLM8; CLM-8; CMRF35H leukocyte immunoglobulin-like receptor; CMRF-35H; CMRF35-H; CMRF35-H9; CMRF-35-H9CD300 antigen-like family member A; CMRF35HIRp60; CMRF35-like molecule 8; IGSF12; IGSF12NK inhibitory receptor; Immunoglobulin superfamily member 12; Inhibitory receptor protein 60; IRC1; IRC1/IRC2; IRC2; IRp60; leukocyte membrane antigen; LMIR1; MAIR-I; Mcipr1; NKRL; Pigr4 |
反应种属 | Human |
应用 | Western Blot(1 µg/mL) |
目标/特异性 | Detects human CD300a/LMIR1 in direct ELISAs and Western blots. In direct ELISAs, less than 2% cross-reactivity with recombinant human (rh) LMIR2, rhLMIR3, rhLMIR5, and rhLMIR6 is observed. |
使用方法 | Western Blot: 1 µg/mL |
来源 | Reconstitute at 0.2 mg/mL in sterile PBS. |
产品组分 |
供应商 | R&D Systems |
Entrez Gene IDs | 11314 (Human); 217303 (Mouse) |
纯化方式 | Antigen Affinity-purified |
免疫原 | Mouse myeloma cell line NS0-derived recombinant human CD300a/LMIR1 Leu18-Gln178 Accession # Q9UGN4 |
生物活性 | Human |
标记 | Unconjugated |
溶解方法 | Reconstitute at 0.2 mg/mL in sterile PBS. |
背景 | CD300a, also known as LMIR1 (in rodents), CMRF-35H, IRp60, CLM-8, and MAIR-I, is a 60 kDa glycoprotein member of the immunoglobulin superfamily (1). Human LMIR1 consists of a 163 amino acid (aa) extracellular domain (ECD) with one Ig-like V-type domain, a 21 aa transmembrane segment, and a 98 aa cytoplasmic domain that contains three immunoreceptor tyrosine-based inhibitory motifs (ITIMs) and a non-canonical ITIM (2). Alternate splicing may generate additional isoforms that either lack the Ig-like domain or contain only the cytoplasmic domain. Within the ECD, human LMIR1 shares 40% and 43% aa sequence identity with mouse and rat LMIR1, respectively. In human, LMIR1 is expressed on peripheral blood eosinophils, mast cells, neutrophils, plasmacytoid dendritic cells, and various T cell subsets (3‑7). Antibody crosslinking of LMIR1 induces phosphorylation of tyrosine residues in the cytoplasmic domain. This leads to the recruitment of phosphatases SHIP, SHP-1, and SHP-2 and inhibition of NK cell, eosinophil, and mast cell activation (2, 3, 5‑7). Crosslinking of LMIR1 to other surface proteins such as SCF R or Fc epsilon RI on mast cells, Fc gamma RIIA on neutrophils, or CCR3 on mast cells and eosinophils inhibits downstream signaling from those receptors (5, 10‑12). LMIR1 crosslinking also limits the in vivo activities of these cells with a subsequent reduction of allergic inflammation symptoms (4, 11, 12). |
运输条件 | Blue Ice |
存放说明 | -20℃ |
参考文献 |
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Detection of Human CD300a/LMIR1 by Western Blot. Western blot shows lysates of human spleen tissue and human granulocytes. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human CD300a/LMIR1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2640) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for CD300a/LMIR1 at approximately 55-60 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1. |