产品标准
浓缩液(1mg/1ml) 亲和纯化抗体
产品应用
WB=1:100-500 Elisa =1:200-1000 IP=1:20-100 IHC=1:100-500 （石蜡切片需做抗原修复）
产品介绍
结构蛋白（Structural Proteins）
上皮细胞胞质中的骨架蛋白除微丝（肌动蛋白）、微管蛋白外，主要是细胞角蛋白（cytokeratins，CK）。CK8也是上皮细胞的特征性标记物。
Cytokeratin 8 belongs to the type B (basic) subfamily of high molecular weight keratins and exists in combination with cytokeratin 18. Cytokeratin 8 is primarily found in the non squamous epithelia and is present in majority of adenocarcinomas and ductal carcinomas. It is absent in squamous cell carcinomas. Hepatocellular carcinomas are defined by the use of antibodies that recognize only cytokeratin polypeptides 8 and 18.
Cytokeratins are a subfamily of intermediate filament proteins and are characterized by a remarkable biochemical diversity, represented in epithelial tissues by at least 20 different polypeptides. They range in molecular weight between 40 kDa and 68 kDa and isoelectric pH between 4.9 – 7.8.
The individual cytokeratin polypeptides are numbered 1 to 20. The various epithelia in the human body usually express cytokeratins which are not only characteristic of the type of epithelium, but also related to the degree of maturation or differentiation within an epithelium.
Cytokeratin subtype expression patterns are used to an increasing extent in the distinction of different types of epithelial malignancies. The cytokeratin antibodies are not only of assistance in the differential diagnosis of tumors using immunohistochemistry on tissue sections, but are also a useful tool in cytopathology and flow cytometric assays.
mol wt:42kDa
Other Aliases:
Cytokeratin 8; CK8 (card2; Cardiac autoantigen 2 120kD; CK 8; ck8; Cyk 8; cyk8; Cytokeratin 8; Cytokeratin8; k0; k2c8; k8; Keratin 8; Keratin type ii cytoskeletal 8; Keratin8; KO; Krt 8; krt8; CYKER; Krt2-8
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