GFAP (GA5)Mouse mAb 鼠单抗识别内源性的总GFAP蛋白。该单克隆抗体使用从猪脊髓中纯化的天然的GFAP免疫动物所制。细胞骨架由三种胞内纤维构成:微丝,中间纤维和微管。中间丝的主要类型,特异性的在特定类型的细胞中表达:包括上皮细胞的细胞角蛋白,神经胶质细胞的胶质纤维酸性蛋白(GFAP),骨骼、内脏和某些血管平滑肌细胞中的desmin,间充质来源细胞中的vimentin蛋白和神经元中的神经丝。GFAP和vimentin在星形胶质细胞中形成中间纤维,调节它们的生存和形状(1)。vimentin纤维尤其存在于早期发育阶段,GFAP纤维是脑星形胶质细胞分化和成熟的特点。因此,GFAP通常用来作为星形胶质细胞所引起的颅内及椎管内肿瘤的标记(2)。此外,GFAP中间丝也在周围神经系统非髓鞘形成的雪旺氏细胞中存在(3)。
GFAP (GA5) Mouse mAb detects endogenous levels of total GFAP protein.
Source / Purification
Monoclonal antibody is produced by immunizing animals with native GFAP purified from pig spinal cord.
Background
The cytoskeleton consists of three types of cytosolic fibers: microfilaments (actin filaments), intermediate filaments and microtubules. Major types of intermediate filaments are specifically expressed in particular cell types: cytokeratins in epithelial cells, glial fibrillary acidic protein (GFAP) in glial cells, desmin in skeletal, visceral and certain vascular smooth muscle cells, vimentin in cells of mesenchymal origin and neurofilaments in neurons. GFAP and vimentin form intermediate filaments in astroglial cells and modulate their motility and shape (1). In particular, vimentin filaments are present at early developmental stages, while GFAP filaments are characteristic of differentiated and mature brain astrocytes. Thus, GFAP is commonly used as a marker for intracranial and intraspinal tumors arising from astrocytes (2). In addition, GFAP intermediate filaments are also present in non-myelin forming Schwann cells in the peripheral nervous system (3).
Storage:Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.