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膜联蛋白A2(ANXA2)检测试剂盒(酶联免疫吸附试验法)

ELISA Kit for Annexin A2 (ANXA2)

ANX-A2; ANX2L4; CAL1H; LIP2; LPC2; LPC2D; P36; PAP-IV; Protein I; Chromobindin-8; Calpactin-1 heavy chain; Lipocortin II; Placental anticoagulant protein IV

  • 膜联蛋白A2(ANXA2)检测试剂盒(酶联免疫吸附试验法) 产品包装(模拟)
  • 膜联蛋白A2(ANXA2)检测试剂盒(酶联免疫吸附试验法) 产品包装(模拟)
  • 膜联蛋白A2(ANXA2)检测试剂盒(酶联免疫吸附试验法) 实验结果图
  • SEB944Mu.jpg 标准曲线图
  • Certificate 通过ISO 9001、ISO 13485质量体系认证

特异性

本试剂盒用于检测膜联蛋白A2(ANXA2),经检测与其它相似物质无明显交叉反应。
由于受到技术及样本来源的限制,不可能完成对所有相关或相似物质交叉反应检测,因此本试剂盒有可能与未经检测的其它物质有交叉反应。

回收率

分别于定值血清及血浆样本中加入一定量的膜联蛋白A2(ANXA2)(加标样品),重复测定并计算其均值,回收率为测定值与理论值的比率。

样本 回收率范围(%) 平均回收率(%)
serum(n=5) 80-92 85
EDTA plasma(n=5) 86-95 90
heparin plasma(n=5) 91-99 95

精密度

精密度用样品测定值的变异系数CV表示。CV(%) = SD/mean×100
批内差:取同批次试剂盒对低、中、高值定值样本进行定量检测,每份样本连续测定20 次,分别计算不同浓度样本的平均值及SD值。
批间差:选取3个不同批次的试剂盒分别对低、中、高值定值样本进行定量测定,每个样本使用同一试剂盒重复测定8次,分别计算不同浓度样本的平均值及SD值。
批内差: CV<10%
批间差: CV<12%

线性

在定值血清及血浆样本内加入适量的膜联蛋白A2(ANXA2),并倍比稀释成1:2,1:4,1:8,1:16的待测样本,线性范围即为稀释后样本中膜联蛋白A2(ANXA2)含量的测定值与理论值的比率。

样本 1:2 1:4 1:8 1:16
serum(n=5) 87-97% 94-102% 90-104% 89-104%
EDTA plasma(n=5) 83-94% 86-101% 92-101% 79-96%
heparin plasma(n=5) 83-99% 80-101% 83-103% 91-103%

稳定性

经测定,试剂盒在有效期内按推荐温度保存,其活性降低率小于5%。
为减小外部因素对试剂盒破坏前后检测值的影响,实验室的环境条件需尽量保持一致,尤其是实验室内温度、湿度及温育条件。其次由同一实验员来进行操作可减少人为误差。

实验流程

1. 实验前标准品、试剂及样本的准备;
2. 加样(标准品及样本)100µL,37°C孵育1小时;
3. 吸弃,加检测溶液A100µL,37°C孵育1小时;
4. 洗板3次;
5. 加检测溶液B100µL,37°C孵育30分钟;
6. 洗板5次;
7. 加TMB底物90µL,37°C孵育10-20分钟;
8. 加终止液50µL,立即450nm读数。

实验原理

将膜联蛋白A2(ANXA2)抗体包被于96孔微孔板中,制成固相载体,向微孔中分别加入标准品或标本,其中的膜联蛋白A2(ANXA2)与连接于固相载体上的抗体结合,然后加入生物素化的膜联蛋白A2(ANXA2)抗体,将未结合的生物素化抗体洗净后,加入HRP标记的亲和素,再次彻底洗涤后加入TMB底物显色。TMB在过氧化物酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。颜色的深浅和样品中的膜联蛋白A2(ANXA2)呈正相关。用酶标仪在450nm波长下测定吸光度(O.D.值),计算样品浓度。

相关产品

编号 适用物种:Mus musculus (Mouse,小鼠) 应用(仅供研究使用,不用于临床诊断!)
RPB944Mu02 膜联蛋白A2(ANXA2)重组蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
RPB944Mu01 膜联蛋白A2(ANXA2)重组蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
APB944Mu01 膜联蛋白A2(ANXA2)活性蛋白 Cell culture; Activity Assays.
PAB944Mu01 膜联蛋白A2(ANXA2)多克隆抗体 WB; IHC; ICC; IP.
PAB944Mu02 膜联蛋白A2(ANXA2)多克隆抗体 WB; IHC; ICC; IP.
SEB944Mu 膜联蛋白A2(ANXA2)检测试剂盒(酶联免疫吸附试验法) Enzyme-linked immunosorbent assay for Antigen Detection.
LMB944Mu 膜联蛋白A2(ANXA2)等多因子检测试剂盒(流式荧光发光法) FLIA Kit for Antigen Detection.

参考文献

杂志 参考文献
Journal of Cellular Biochemistry Subcellular proteome analysis unraveled annexin A2 related to immune liver fibrosis [PubMed: 20225235]
World Journal of Gastroenterology Expression characteristics and diagnostic value of annexin A2 in hepatocellular carcinoma [PubMed: PMC3491596]
Oncology Letters Annexin A2 is not a good biomarker for hepatocellular carcinoma in cirrhosis [PubMed: PMC3742823]
Ibrahim Annexin A2 Versus Afp as An Efficient Diagnostic Serum Marker for Hepatocellular Carcinoma [Ghrnet: Source]
European Journal of Clinical Microbiology & Infectious Diseases Serum annexin A2 levels in acute brucellosis and brucellar spondylodiscitis [Pubmed:24853056]
Biomedicine & Pharmacotherapy Circulating annexin A2 as a biomarker in gastric cancer patients: Correlation with clinical variables [Pubmed:25661364]
Hepat Mon Serum Levels of Annexin A2 as a Candidate Biomarker for Hepatic Fibrosis in Patients With Chronic Hepatitis B [PubMed: 26587036]
Tumour Biol Up-regulation of annexin A2 expression predicates advanced clinicopathological features and poor prognosis in hepatocellular carcinoma [PubMed: 26109000]
Biomed Pharmacother Circulating [PubMed: 25661364]
Tumour Biol Evaluation of annexin A2 and as potential biomarkers for hepatocellular carcinoma [PubMed: 26189841]
Eur J Clin Invest Stairs instead of elevators at the workplace decreases PCSK9 levels in a healthy population [PubMed: 26081791]
Journal of Oral and Maxillofacial Surgery Serum Annexin A2 Level Is Associated With Diagnosis and Prognosis in Patients With OralSquamous Cell Carcinoma. [pubmed:27889534]
Pregnancy Hypertens Assessment of annexin A5 and annexin A2 levels as biomarkers for pre-eclampsia: A pilot study. [pubmed:28501283]
Mol Nutr Food Res. Epigallocatechin gallate induces an up-regulation of LDL receptor accompanied by a reduction of PCSK9 via the annexin A2-independent pathway in HepG2 cells. [pubmed:28181408]
Archives of Gynecology and Obstetrics Expression of annexin A2 in adenomyosis and dysmenorrhea [Pubmed: 31183557]
Cancers Extracellular Vesicles-Based Biomarkers Represent a Promising Liquid Biopsy in Endometrial Cancer [Pubmed: 31842290]
PLASMA BIOMARKER FOR OVARIAN CANCER []
Diagnostics Diagnostic Value of Plasma Annexin A2 in Early-Stage High-Grade Serous Ovarian Cancer. Diagnostics 2021, 11, 69 [33406648]
ADVANCED RESEARCHES Search for Effective Serum Tumor Markers for Early Diagnosis of Hepatocellular Carcinoma Associated with Hepatitis C []
Cancer Cell International Bufalin Induced Mitochondrial Dysfunction Promotes Apoptosis of Glioma Cells by Regulating Annexin A2 and DRP1 Proteins []
Cancer Cell Int Bufalin induces mitochondrial dysfunction and promotes apoptosis of glioma cells by regulating Annexin A2 and DRP1 protein expression [34376212]
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