货号 | MAB2087-SP |
别名 | BXMAS1; BXMAS1MGC119592; CD307; CD307e antigen; CD307e; DKFZp667E2019; DKFZp667F216; Fc receptor homolog 5; Fc receptor-like 5; Fc receptor-like protein 5; FcRH5; FCRH5MGC119593; FcRL5; FcR-like protein 5; FLJ00333; FLJ00397; IFGP5; Immune receptor translocation-associated protein 2; immunoglobulin superfamily receptor translocation associated 2 (IRTA2); IRTA2; IRTA2MGC119590; PRO820 | 全称 | Fc Receptor-like 5 |
反应种属 | Human |
应用 | Western Blot(1 µg/mL) |
目标/特异性 | Detects human FCRL5/FcRH5 in direct ELISAs and Western blots. In Western blots, no cross-reactivity with recombinant human (rh) FCRL1, rhFCRL2, rhFCRL3, or rhFCRL4 is observed. |
使用方法 | Western Blot: 1 µg/mL |
来源 | Reconstitute at 0.5 mg/mL in sterile PBS. |
产品组分 |
供应商 | R&D Systems |
Entrez Gene IDs | 83416 (Human); 329693 (Mouse) |
纯化方式 | Protein A or G purified from hybridoma culture supernatant |
免疫原 | Mouse myeloma cell line NS0-derived recombinant human FCRL5/FcRH5 Gln16-Arg844 (predicted) Accession # AAI01067 |
生物活性 | Human |
标记 | Unconjugated |
溶解方法 | Reconstitute at 0.5 mg/mL in sterile PBS. |
背景 | Fc Receptor-Like 5 (FCRL5), also known as FcRH5, IRTA2, and CD307, is a 120 kDa protein with sequence homology to classical Fc receptors. The type 1 transmembrane FCRL proteins contain from three to nine immunoglobulin-like domains. They are differentially expressed within the B cell lineage and can either promote or inhibit B cell proliferation and activation (1, 2). According to R&D Systems testing, FCRL5 binds to purified human IgG with high affinity. Mature human FCRL5 consists of a 836 amino acid (aa) extracellular domain (ECD) with nine Ig-like domains, a 21 aa transmembrane segment, and a 105 aa cytoplasmic domain with one immunotyrosine activation motif (ITAM) and two immunotyrosine inhibitory motifs (ITIMs) (1, 3). Mouse FCRL5 contains only five Ig-like domains in its ECD. It shares 49% aa sequence identity with human FCRL5 within common regions. Alternate splicing of human FCRL5 generates isoforms that consist of approximately the first one, six, or eight Ig-like domains (3, 4). FCRL5 expression is restricted to mature B lineage cells in lymphoid tissues and blood (3, 5‑7). Its ligation inhibits signaling through the B cell antigen receptor (8). Epstein-Barr virus transformation of B cells induces the up‑regulation of surface FCRL5 by a direct effect of its EBNA2 protein on FCRL5 gene transcription (9). The FCRL5 gene maps to the 1q21 chromosomal locus, a common site of rearrangements in B cell malignancies, and the FCRL5 protein is preferentially expressed in cell lines with 1q21 abnormalities (3). FCRL5 is up‑regulated on tumor cells in some types of B cell malignancies (6, 10‑12). In addition, soluble FCRL5 is elevated in the serum of many B cell leukemia patients (11, 13). |
运输条件 | Blue Ice |
存放说明 | 4℃ |
参考文献 |
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