CD33 抗原是一种 67 kDa 单链跨膜糖蛋白，报告为一种依赖性结合分子。分子的细胞外部分属于 Ig 超级家族，涉及一个 V 型和一个类似 C2 的域。这种抗原显示一些与骨髓相关的糖蛋白和 CD22 分子的同源性。CD33 抗原在外周血的单核细胞上表达。在骨髓中，它在粒细胞和巨噬细胞前体上被发现，并且不存在于多能干细胞中。
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克隆： 906 （MY9） |
同型: IgG2b 鼠 |
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大约 30% 的正常骨髓细胞表达 My9，包括骨髓细胞、原细胞和骨髓细胞。骨髓群形成细胞表达 My9，红细胞爆发形成细胞的子集也是如此。形成细胞的红细胞组形成细胞不表达 My9。 |
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| 克隆： DHL60.251 | 同型： IgG1 Mouse |
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D3HL60.251 单克隆抗体与骨髓源细胞发生反应。它与单核细胞反应强烈，与外周血的粒细胞反应微弱，但不与成熟的淋巴细胞或淋巴前体发生反应。 |
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