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
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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 &amp; Infectious Diseases Serum annexin A2 levels in acute brucellosis and brucellar spondylodiscitis [Pubmed:24853056]
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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]
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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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