
- Species ReactivityHuman
- SpecificityDetects human MMP-1 in ELISAs and Western blots. In sandwich immunoassays, less than 0.5% cross-reactivity with recombinant human (rh) MMP‑2, rhMMP-3, rhMMP-7, rhMMP-8, rhMMP-9, rhMMP-10, rhMMP-12, rhMMP-13, and rhMMP-16 is observed.
- SourcePolyclonal Goat IgG
- PurificationAntigen Affinity-purified
- ImmunogenMouse myeloma cell line NS0-derived recombinant human MMP-1
Phe20-Asn469
Accession # P03956 - FormulationLyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
- LabelUnconjugated
- Western Blot1 µg/mLSee below
- Immunohistochemistry5-15 µg/mLSee below
- Human MMP-1 Sandwich ImmunoassayReagent
- ELISA Capture (Matched Antibody Pair)0.2-0.8 µg/mLHuman MMP‑1 Antibody (Catalog # AF901)
- ELISA Detection (Matched Antibody Pair)2.5-10 ng/mLHuman MMP‑1 Biotinylated Antibody (Catalog # BAF901)
- ELISA StandardRecombinant Human MMP-1 Protein, CF (Catalog # 901-MP)
- ReconstitutionReconstitute at 0.2 mg/mL in sterile PBS.
- ShippingThe product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
- Stability & StorageUse a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
- Cawston, T.E. (2004) in Interstitial Collagenase. Barrett, A.J. et al. (eds): Handbook of Proteolytic Enzymes, San Diego: Academic Press, p. 472.
- Long Name:Matrix Metalloproteinase 1
- Entrez Gene IDs:4312 (Human)
- Alternate Names:CLGmatrix metalloprotease 1; CLGN; EC 3.4.24; EC 3.4.24.7; Fibroblast collagenase; interstitial collagenase; matrix metallopeptidase 1 (interstitial collagenase); matrix metalloproteinase 1 (interstitial collagenase); Matrix metalloproteinase-1; MMP1; MMP-1
Background:
Matrix metalloproteinases are a family of zinc and calcium dependent endopeptidases with the combined ability to degrade all the components of the extracellular matrix. MMP-1 (interstitial collagenase), can degrade a broad range of substrates including types I, II, III, VII, VIII, and X collagens as well as casein, gelatin,
alpha -1 antitrypsin, myelin basic protein, L-Selectin, pro-TNF, IL-1 beta, IGFBP-3, IGFBP-5, pro-MMP-2, and pro-MMP-9. A significant role of MMP-1 is the degradation of fibrillar collagens in extracellular matrix remodeling, characterized by the cleavage of the interstitial collagen triple helix into ¾, ¼ fragments. However, as the list of substrates above illustrates, the role of MMP-1 is more diverse than originally envisaged, and may involve enzyme cascades, cytokine regulation, and cell surface molecule modulation. MMP-1 is expressed by fibroblasts, keratinocytes, endothelial cells, monocytes, and macrophages. Structurally, MMP-1 may be divided into several distinct domains; a pro-domain which is cleaved upon activation; a catalytic domain containing the zinc binding site; a short hinge region and a carboxyl terminal (hemopexin-like) domain.
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2.加大辣根过氧化物酶标记的链霉亲和素;
我现在用商品化的试剂盒进行夹心法ELISA测定某抗体的浓度,盒子给定了4个标准品,标准品抗体浓度为70000~1000单位,测定步骤中要求对样品进行1:1000稀释后测定。
但是有的样本按照1:1000稀释后,最终OD值大于70000浓度的标准品的OD值,然后使用ELISACALC软件进行四参数拟合,超过了标准曲线的范围,就算不出来这个样品的浓度,但是如果在1000-70000之间的OD值就可以算出相应浓度。请教大神们,接下来我是否可以对样品进行1:2000,1:4000浓度稀释,算出结果后再×2、×4,算作此样品的浓度呢?还是直接给一个>70000的定性结果?或者可以有能算出来的其他软件?
Ps试剂盒中提及Dilutionlinearity(稀释线性?)为141%,这个是什么意思呢?
多谢!!
请大家帮帮忙,第一步加完抗原后必须封闭吗
目前,我用该蛋白的鼠源性单抗来包被ELISA板子,5%BSA37度封闭二小时后,洗涤四次后将板子分三个组加入抗原:其中一个组中加入的是我重组的蛋白,另一个组为用其它方法证实含该蛋白的人体内血清,最后一个组加入PBS。37度一小时后洗涤四次后每孔加入我制备的兔源性多抗。37度一小时洗涤六次后我再加入酶标记的抗兔的抗体37度40分钟后洗涤六次后TMB显色。
问题就在我显色后所有的孔都是阳性,其中以抗原为我的重组蛋白组与PBS组OD值最高,两组都可以达到1.8以上,而加入的抗原为人体血清组低,为0.6-1.0不等。
后面我优化条件,封闭液用过5%的脱脂奶粉,2%的BSA,包被的单抗浓度摸了梯度,加入的多抗也摸了梯度,酶标的抗体也摸了梯度。结果都没有改变,连趋势每次都是一样以重组蛋白组与PBS组OD最高。
今天我还试着把抗原换成其它蛋白也做出了强阳性?
请教各位高手,我的ELISA该如何往下面做了啊,是不是我的抗体本身有问题呢?
对了,我包被用的单抗是用GE公司的预装柱纯化的,很纯,在考染中是看不到一条杂带的。
ELISA双抗体夹心法(enzyme linked immunosorbent assay——sandwich technique)的原理是将特异性抗体结合到固相载体上形成固相抗体,然后和待检血清中的相应抗原结合形成免疫复合物,洗涤后再加酶标记抗体,与免疫复合物中抗原结合形成酶标抗体-抗原-固相抗体复合物,加底物显色,判断抗原含量。
生物帮有相关介绍。编码RNA http://doc.bio1000.com/show-3399.html
(2)封闭:将已包被的板用洗涤液洗涤2次,每孔加入120 μL封闭液,封闭一段时间,取出,甩干备用。
(3)竞争反应:在制备好的板中每孔加入50 μL系列浓度的标准品溶液和50 μL稀释好的酶标抗体溶液,孵育一段时间。
(4)洗板:用洗涤液洗涤5次。
(5)显色反应:每孔加入显色溶液100 μL,孵育一段时间。
(6)终止:每孔各加入终止液,在酶标仪上测定各孔的吸光值。


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