ELISA 2.0 kit for measuring Canis familiaris allergen,Can f 1 | |||||||
| Antibodies: | 10D4/pAb | ||||||
| Standard Range: | 50-0.1 ng/mL | ||||||
| Limit of Detection: | 0.39ng/mL | ||||||
| Background: | OD<0.08 at 450nm | ||||||
| Coefficient of Determination: | R-squared>0.98 | ||||||
| Contents: | Plate: Pre-coated with anti-Can f 1 monoclonal antibody 10D4Vial 1: (white top) Can f 1 allergen standardConcentration: 500 ng/mlVial 2: (brown) Rabbit anti Can f 1 antibodyVial 3: (blue top) Peroxidase-conjugated Goat Anti-RabbitBottle 1: Wash buffer, (10x concentrate)Bottle 2: Assay buffer, (10x concentrate)Bottle 3: TMB developing substrateBottle 4: Stop solution (0.5N sulfuric acid) | ||||||
| Storage: | The ELISA 2.0 kit should be stored at 2-8°C. | ||||||
| Expiry: | 6 months from date of receipt | ||||||
| Not Provided: | Type I ultrapure water or 18.2MΩ de-ionized waterVolumetric measuring equipment (e.g. serological pipette, graduated cylinder)Clean containers for buffer and reagent preparationCalibrated single and multi-channel micropipettes and tipsVortex mixerPlate reader capable of reading absorbance at 450nmAnalysis software (recommended, but not required) | ||||||
| Notes: | The allergen standard is recommended for immunoassay calibrationpurposes only.A list of frequently asked questions and troubleshooting guide can be found under the ‘Support’ tab on our website. | ||||||
| Product Resources: | EPC-CF1-5 Certificate of Analysis Validation Performance Data | ||||||
For research and commercial use in vitro:not for human in vivo or therapeutic use. | |||||||
| Certificate of Analysis | |||||||
| Pre-coated Plate: | 96-well polystyrene microtiter plate coated withmonoclonal antibody 10D4 and treated with stabilizingagent. Sealed in foil pouch with desiccant. | ||||||
| Monoclonal Antibody: | 10D4 (clone 10D4 C4 A10) | ||||||
| Immunogen: | Can f 1 | ||||||
| Isotype: | Mouse IgG2a/kappa | ||||||
| Specificity: | Binds to an epitope on dog Canis familiaris allergen, Can f 1 | ||||||
| Purification: | Produced in ascites and purified by affinity chromatography using Protein A. Single heavy and light chain bands on SDS-PAGE. | ||||||
| Certificate of Analysis | |||||||
| Detection Antibody: | Rabbit polyclonal antiserum | ||||||
| Immunogen: | Dog fur extract | ||||||
| Isotype | Multiple | ||||||
| Specificity: | The antiserum contains IgG antibodies to dogCanis familiaris allergen, Can f 1, as well as IgG antibodies to other dog allergens. | ||||||
| Purification: | Produced in ascites and purified by affinity chromatography using Protein A. Single heavy and light chain bands on SDS-PAGE. | ||||||
| Activity: | Titrated for use in ELISA at 1/1000 dilution. Prepared in 1% BSA/50% glycerol/PBS, pH 7.4, 0.22 μm filtered, preservative free. | ||||||
| Certificate of Analysis | |||||||
| Allergen Standard: | Purified natural Can f 1 prepared in 1% BSA/50% glycerol/PBS, pH 7.4. | ||||||
| Concentration/Calibration: | 500 ng/mL (based on amino acid analysis) | ||||||
| References: | |||||||
| 1. Larsen JN, Ford A, Gjesing B, et al. The collaborative study of the international standard of dog, Canis domesticus, hair/dander extract. J Allergy Clin Immunol 1988; 82:318-330. | |||||||
| 2. DeGroot H, Goei K, Van Sicter P, et al. Affinity purification of a major and minor allergen from dog extract: Serologic activity of affinity-purified Can f 1 and Can f 1-depleted extract. J Allergy Clin Immunol 1991; 87:1056-61. | |||||||
| 3. Schou C, Hansen G, Linter T, et al. Assay for the major dog allergen, Can f 1 investigation of house dust samples and commercial dog extracts. J Allergy Clin Immunol 1992; 88:847-53. | |||||||
| 4. Ingram JM, Sporik R, Rose G, Honsiger R, Chapman MD, Platts-Mills TAE. Quantitative assessment of exposure to dog (Can f 1) and cat (Fel d 1) allergens: Relationship to sensitization and asthma among children living in Los Alamos, New Mexico. J Allergy Clin Immunol 1995; 96:449-456. | |||||||
| 5. Sporik RB, Ingram JM, Price W, Sussman JH, Honsiger RW, Platts-Mills TAE. Association of asthma with serum IgE and skin test reactivity to allergens among children living at high altitude: Tickling the dragon’s breath. Amer J Resp Crit Care Med 1995;151:1388-1392. | |||||||
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的试剂:免疫吸附剂、结合物和酶的底物。
完整的ELISA试剂盒包含以下各组分:
(1)已包被抗原或抗体的固相载体(免疫吸附剂);
(2)酶标记的抗原或抗体(结合物);
(3)酶的底物;
(4)阴性对照品和阳性对照品(定性测定中),参考标准品和控制血清(定量测定
中);
(5)结合物及标本的稀释液;
(6)洗涤液;
(7)酶反应终止液。
今天文章就简单整理了一下最近遇到的问题,有些问题对你来说可能很简单,但是还是会给一些科研菜鸟带去小麻烦,特整理了这么个专场来涨涨姿势。
这里就简单整理了5个问题,具体内容如下:
小编自己在各大论坛看到最多的三个答案:
1)48T可做42个样本加6个标准曲线;96T可做90个样本加6个标准曲线
2)以96T试剂盒来算,定量的试剂盒一般可以做90个左右的样品,定性的试剂盒可以做94个左右的样品
3)96T的ELISA试剂盒,去除标准品复孔检测,最多还能检测80个标本;48T的最多30个样本。
2、elisa试剂盒96T的能做检测多少血清样品?板能重复利用吗?
96T,一般做复孔的话,做标准曲线需要16个孔,剩下80个孔就可以做40个样本。这个板不能重复利用。而且配套的试剂也只是够一块板子用的。
3、想请教一下,我想用elisa法测血清里的一种抗原,查了资料,发现没有现成的试剂盒用,现在就有2种备选方案,一种是买抗体对自己包被(查了R&D等大公司都没有可用于elisa的单抗)。哪种比较好呢?自己包被的会不会比国产的试剂盒可靠呢?
如果你觉得技术不错有队其他公司不放心,可以自己购买抗体对自己包被,这个就是麻烦点,自己包被用着放心,舒心;
另外国内还是有一些资质不错的公司,如北京达科为,上海巧伊,依科赛,深圳欣博盛等等
4、western和ELISA处理样本有何差别?
WesternBlot样品制备要加蛋白裂解液(含有蛋白酶抑制剂),然后冰上研磨,收集于EP管,冰上裂解30min,4度12000rpm离心15min,取上清分装,即得到蛋白样品。建议直接电泳,多余的-80保存。建议分装的蛋白每支略多于一次上样量,一次性用完一支,避免反复冻融。
ELISA样品,直接脑组织冰上匀浆,收集于EP管,同上一样离心,大约220-250ul每支分装(因为ELISA上样量基本都是每孔100ul,做复孔,每个样品2孔,就需要200ul,为了避免不够2孔,分装时要大于200ul每支),直接实验。多余的-80保存,一样避免反复冻融。
不过ELISA最好少量样品进行预实验,或者查阅文献,看看大概组织里有多高浓度,选择合适的试剂盒,测量范围要与组织浓度相符。避免浓度过高测量不准,或者浓度过低,小于试剂盒最低可测浓度。
5、Elisa试剂盒该买哪家公司的呢?
提出这个问题的朋友其实该打,目前国际上各个品牌的试剂盒生厂商,都会有其偏重点,像R&D在细胞因子方面的试剂盒就非常牛逼,而其他牌子也一样的。
Bender:粘附分子方面的试剂盒;
Cayman:花生四烯酸类产品的试剂盒;
Merck(Linco):内分泌研究方面的试剂盒;
Tips:
1、买Elisa试剂盒时,尽量先查文献,通过文献找品牌,再找供应商,找供应商就找正规代理商,千万不要去干“赔夫人又折兵”的蠢事。
2、ELISA中,复孔就是同一个样品加到至少两个孔中(一般3个或4个),最后取其平均值作为样品的读数,这样测得的结果才有说服力!
做复孔是为了较好的较少组内差异,如果血清不足不做复孔也可以。
1、采用何种原料和抗体,是否高效、灵敏、特异
2、规范包被操作,吸附是否均匀
3、重复性、可靠性
6、是否提供技术服务
7、适用于血浆、血清、组织匀浆液、细胞培养上清液、尿液等多种类型的样本
8、可检测动物类型是否丰富
9、可检测指标是否齐全
第二步、明确编码该蛋白的基因与其它哪些物种同源性最好
第三步、寻找检测这些物种蛋白的试剂盒
第四步、咨询商家ELISA是试剂盒使用的抗体类型:多抗还是单抗? 单抗是针对什么抗原决定簇的?
第五步、 做出自己的判断该买哪个试剂盒,或者实在没有可以找公司进行订制实验
1、是不是获得SCI文献引用;
2、试剂盒是不是具备高灵敏,质量好的;
3、售后服务完全,提供代测服务;
4、后期实验提供全程技术支持!

