酸性磷酸酶 (acid phosphatase,ACP)分布极广泛,遍布各种组织,主要存在于细胞的溶酶体内,所以常作为溶酶体标志酶。溶酶体外的酸性磷酸酶存在于内质网和胞质内,各种动物中的酸性磷酸酶各有不同,酸性磷酸酶的适宜pH值为4.5-5.5,酸性磷酸酶是一个蛋白家族,哺乳动物中其分子量从18kD到100kD不等,该酶分为两类,一类为酒石酸盐敏感型,一类为氟离子敏感型;溶酶体中的酸性磷酸酶为酒石酸盐敏感型,而红细胞和巨噬细胞中的酸性磷酸酶为氟离子敏感型。
植物酸性磷酸酶 (ACP)提取试剂主要用于裂解植物组织,提取植物中的酸性磷酸酶。该试剂仅用于科研领域,不适用于临床诊断或其他用途。
自备材料:
1、蒸馏水
2、离心管或试管、匀浆器或研钵、低温离心机
操作步骤(仅供参考):
1、取适量的植物组织称重,清洗干净,切碎。
2、按植物组织: 植物酸性磷酸酶 (ACP)提取试剂=1g: 2ml的比例,加入植物酸性磷酸酶 (ACP)提取试剂,充分捣碎或研磨。
3、静置30min,用纱布或滤纸过滤。
4、4000g离心20min,留取上清液并测量体积,-20℃冻存,用于酸性磷酸酶的检测或其他用途。
计算:
组织或植物粗酶液获得率 (ml)=上清液体积 (ml)/组织或植物质量×100%
注意事项:
1、待测样品中不能含有磷酸酶抑制剂,同时需避免反复冻融。
2、所测样本的值高于标准曲线的上限,应用植物酸性磷酸酶 (ACP)提取试剂稀释样品后重新测定。
3、试剂开封后请尽快使用,以防影响后续实验效果。
4、为了您的安全和健康,请穿实验服并戴一次性手套操作。
Acid Phosphatase (ACP) is widely distributed in various tissues and primarily localized in the lysosomes of cells, thus often serving as a lysosomal marker enzyme. Extracellular ACP exists in the endoplasmic reticulum and cytoplasm. The properties of ACP vary across different animal species, with an optimal pH range of 4.5-5.5. ACP belongs to a protein family, and its molecular weight in mammals ranges from 18 kDa to 100 kDa. It is classified into two types: tartrate-sensitive ACP and fluoride-sensitive ACP. Lysosomal ACP is tartrate-sensitive, whereas ACP in red blood cells and macrophages is fluoride-sensitive.
Plant Acid Phosphatase (ACP) Extraction Reagent is specially formulated for lysing plant tissues and extracting ACP from plant samples. This reagent is for research use only and not intended for clinical diagnosis or any other purposes.
Materials to Be Prepared by Users
1. Distilled water
2. Centrifuge tubes or test tubes, homogenizer or mortar and pestle, refrigerated centrifuge
Operating Procedures (For Reference Only)
1. Weigh an appropriate amount of plant tissue, rinse it thoroughly, and cut it into small pieces.
2. Add the Plant Acid Phosphatase (ACP) Extraction Reagent at a ratio of 1 g plant tissue: 2 ml reagent, then homogenize or grind the mixture thoroughly.
3. Allow the mixture to stand for 30 minutes, then filter it through gauze or filter paper.
4. Centrifuge the filtrate at 4000×g for 20 minutes. Collect the supernatant, measure its volume, and store it at -20°C for subsequent ACP activity assays or other applications.
Calculation
Yield of crude enzyme solution from plant tissue (ml) = Volume of supernatant (ml)/Weight of plant tissue (g)×100%
Precautions
1. The samples to be tested must be free of phosphatase inhibitors. Repeated freeze-thaw cycles of the samples should also be avoided.
2. If the measured value of the sample exceeds the upper limit of the standard curve, dilute the sample with Plant Acid Phosphatase (ACP) Extraction Reagent and perform the assay again.
3. Use the reagent as soon as possible after opening to prevent adverse effects on subsequent experimental results.
4. For your safety and health, wear a lab coat and disposable gloves during operation.