CD244 (2B4, SLAMF4) is a 66 kD member of the CD2/SLAM related receptor family (SRR). It is expressed on NK (3), Tcell subsets, monocytes and eosinophils(4). It is expressed at high levels on Leuikemia initiating cells, and plays a role in their proliferative potential (5). In mice there are two transcription variants, a long form and a short form of CD244 each of which have distinct signaling properties. In humans, only the long form is expressed. Decreased CD244 expression on monocytes of SLE patients correlated (negatively) with autoantibody titer(2). CD244 mediated function in immune response can vary greatly dependant on the context of its ligation.

Antibody ANC244.8 binds to recombinant CD244-muIg (cat #544-020) in EIA, and to cell surface CD244 on human PBL in FACS. ANC244.8 binds to a CD244 epitope that is distinct from the binding sites of clone ANC244.3 (cat #259-020). It blocks binding of clone C1.7.

References:

1) Boles KS, Mathew PA, et al. (1999) Tissue Antigens 54(1): 27-34.

2) Mak A, AM Fairhurst, et al. (2017) Clinical Rheumatology 37(3): 811-816. doi.org/10.1007/s10067-017-3698-2.

3) Vacca P, MC Mingarri, et al. (2006) Blood 108: 4078-4085.

4) Munitz A, Levi-Schaffer F, et al. (2005) J Immunol 174(1): 110-118.

5) Zhang F, Zheng J, et al. (2017) Haematologica Doi: 10.3324/haematol.2016.151555.

Ancell抗CD105异花青素人CD105（endoglin）是一种同型二聚体膜糖蛋白（1），实际上局限于内皮细胞，并且存在于一些白血病细胞和少量骨髓细胞中。CD105 以高亲和力与TGF- b 1和b 3结合（4）。同种型：鼠IgG1 kappa免疫原：人B谱系白血病细胞的膜制备特异性：抗体SN6识别分子量约为160 kd的人CD105同型二聚体的细胞外表位。据报道它与非人类灵长类动物以及马和猪（11）CD105发生交叉反应。功能应用：抗体SN6将增强TGF-b1与表达CD105的白血病细胞的结合。  抗体SN6已用于鉴定间充质祖细胞群（8,9,10）。