乳酸脱氢酶检测试剂盒

产品参数：

特点：

       1、优化设计的实验方案，1小时即可完成

       2、灵敏度高，操作便捷

       3、试剂盒提供检测所需的全套试剂 

样品制备：

1）. 直接或稀释使用清亮无色中性液体样品，体积可达2.000ml。

2）. 过滤混浊溶液。

3）. 除去样品中的CO 2 （测试盒说明书过过滤）。

4 ）. 测试盒说明书过加氢氧化钾或氢氧化钠将酸性样品的PH值调至8.0。

5 ）. 调整酸性浅色样品的PH值至8.0，孵育约15分钟。

6 ）. 用空白样品做对照测定有色样品（如有必要调整PH值至8.0）。

7 ）. 用PVPP（ 聚乙烯吡咯烷酮）或聚酰胺处理深色未经稀释或体积更大的样品。

8 ）. 压碎、搅匀固体或半固体样品，用水溶解提取。

9 ）. 用Carrez试剂将含有蛋白质的样品去蛋白。

10）.含脂肪的样品用热水提取。

优点如下：

1、快速简便：全程约50分钟，可测100例左右样本。

2、取样量微：本法取手指或耳垂等末梢血20ul～50ul即可测红细胞中的SOD，只需2ml静脉血可测白细胞中的SOD及血小板中SOD，只需50mg左右组织就可测组织匀浆、胞浆中的SOD，0.2g组织可测线粒体及微粒体中的SOD。

3、灵敏度高：IC50=0.05g/ml，是邻苯三酚法的18倍。

4、稳定性好：试剂盒2～8℃存放6个月有效。

5、再现性好：变异系数CV=1.7%。

6、回收试验： X =103.3%。

7、受外界影响因素小：干扰因素少，重复性强。

8、测试面广：可测动物血液、组织、各种体液、灌流液等、各种培养细胞、植物组织、各种水产以及化妆品、保健品等，效果均佳。

操作步骤(仅供参考)：  

1.配制65mM H2O2基液：本试剂盒提供的H2O2基液中的H2O2浓度约为1M。由于过氧化氢不是非常稳定，使用前需自行测定过氧化氢的实际浓度。把浓度约为1M的H2O2基液用本试剂盒提供的CAT Assay buffer稀释100倍，使H2O2基液中的H2O2浓度约为10mM。

2.准备样品：  

a,细胞或组织样品：取恰当细胞或组织进行裂解，可以采用Leagene Western及IP 细胞裂解液，如果有必要需进行适当匀浆，低速离心取上清，-70℃冻存，用于CAT的检测。  

b,血浆、血清和尿液样品：血浆、血清按照常规方法制备，用生理盐水10倍稀释后， 可以直接用于本试剂盒的测定，尿液通常也可以直接用于测定，-70℃冻存，用于CAT的检测。  

c,全血样品：收集适量的全血(whole blood)至一抗凝管内，颠倒混匀。取100μl全 血冻融一次，用CAT Assay buffer1000倍后进行CAT检测。

d,血液中的红细胞裂解液：用抗凝管收集血液，颠倒混匀。取至少500μl全血4℃ 3000g离心5min，弃上清，沉淀用预冷的生理盐水洗涤3次。  

e,高活性样品：如果样品中含有较高活性的CAT，可以使用CAT Assay buffer稀释。

f,(选做)样品准备完毕后可以用BCA蛋白浓度测定试剂盒测定蛋白浓度，以便于后续 计算单位蛋白重量组织或细胞内的CAT含量。  

3、 CAT检测：按照下表设置空白管、自身对照管、测定管，溶液应按照顺序依次加入，并 注意避免产生气泡。如果样品中的酶活性过高，可以减少样品用量或适当稀释后再进行测定。样品的检测能设置平行孔。

4、分光光度计检测405nm处吸光度，分光光度计比色杯光径0.5cm。如果没有分光光度计，亦可用酶标仪检测，但如果有条件，尽量采用分光光度计检测。蒸馏水调零，读取各管吸光度值。一般应数小时内检测完毕。

（石蜡切片需做抗原修复）

 not yet tested in other applications.

 optimal dilutions/concentrations should be determined by the end user.  

保存条件  Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.

Important Note  This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.

产品介绍 Teneurin-3, also known as Ten-3, TNM3 or ODZ3, is a 2,699 amino acid single-pass type II membrane protein that contains 25 YD repeats, 8 EGF-like domains, 5 NHL repeats and one teneurin N-terminal domain. Localized to the membrane and expressed in brain, testis and ovary, Teneurin-3 exists as a disulfide-liked homodimer that is thought to function as a cellular signal transducer. Additionally, Teneurin-3 may participate in eye-specific patterning in the visual pathway and is required for aligned binocular vision. The gene encoding Teneurin-3 maps to chromosome 4. Representing approximately 6% of the human genome, chromosome 4 contains nearly 900 genes, one of which is the Huntingtin gene, which is found to encode an expanded glutamine tract in cases of Huntington's disease. FGFR-3 is also encoded on chromosome 4 and has been associated with thanatophoric dwarfism, achondroplasia, Muenke syndrome and bladder cancer. Chromosome 4 is also tied to Ellis-van Creveld syndrome, methylmalonic acidemia and polycystic kidney disease.

Function : Involved in neural development, regulating the establishment of proper connectivity within the nervous system. Promotes axon guidance and homophilic cell adhesion. Plays a role in the development of the visual pathway; regulates the formation in ipsilateral retinal mapping to both the dorsal lateral geniculate nucleus (dLGN) and the superior colliculus (SC). May be involved in the differentiation of the fibroblast-like cells in the superficial layer of mandibular condylar cartilage into chondrocytes. May function as a cellular signal transducer (By similarity).

Subunit : Homodimer; disulfide-linked (Probable).

Subcellular Location : Membrane; Single-pass type II membrane protein.Cell projection, axon (By similarity).

Tissue Specificity : Expressed in ***** and fetal brain, slightly lower levels in testis and ovary, and intermediate levels in all other peripheral tissues examined. Not expressed in spleen or liver. Expression was high in brain, with highest levels in amygdala and caudate nucleus, followed by thalamus and subthalamic nucleus.

DISEASE : Note=Defects in TENM3 are a cause of microphthalmia, isolated, with coloboma (MCOPCB). Microphthalmia is a disorder of eye formation, ranging from small size of a single eye to complete bilateral absence of ocular tissues. Ocular abnormalities like opacities of the cornea and lens, scaring of the retina and choroid, cataract and other abnormalities like cataract may also be present. Ocular colobomas are a set of malformations resulting from abnormal morphogenesis of the optic cup and stalk, and the fusion of the fetal fissure (optic fissure). [SIMILARITY] Belongs to the tenascin family. Teneurin subfamily.

Similarity : Contains 8 EGF-like domains.

Contains 5 NHL repeats.

Contains 1 teneurin N-terminal domain.

Contains 23 YD repeats.

Database links :

Entrez Gene: 55714 Human

Entrez Gene: 23965 Mouse
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