Revision 4

#28601Store at -20C

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IHC-P, IF-IC

REACTIVITY:

H M R

SENSITIVITY:

Endogenous

MW (kDa):

20

Source/Isotype:

Rabbit IgG

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunohistochemistry (Paraffin) 1:200 - 1:800
Immunofluorescence (Immunocytochemistry) 1:100 - 1:400

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

CRP2 (E8R5N) Rabbit mAb recognizes endogenous levels of total CRP2 protein.

Species Reactivity:

Human, Mouse, Rat

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Leu88 of human CRP2 protein.

Background

CRP2 is a LIM domain containing protein that is expressed from the CSRP2 gene. It was first described to be a differentially regulated and preferentially expressed protein in aortic smooth muscle cells (1). It plays a role in development of the vasculature in embryogenesis (2). It was also established that CRP2 is expressed exclusively in stellate cells in the liver, being absent from hepatocytes, sinusoidal endothelial cells, and Kupffer cells. Upregulation of CRP2 was observed to occur upon early activation in the myofibroblastic program of stellate cells, and is now thought to be involved in the development of liver fibrosis (3).

More recently, CRP2 has been shown to be an invadopodia actin bundling protein. Invadopodia are actin-rich membrane protrusions that direct extracellular matrix degradation that are believed to facilitate tumor cell invasion. CRP2 has been shown to be upregulated in breast tumors (4), and in B-cell acute lymphoblastic leukemia high CRP2 expression has been associated with poor outcome (5). The proximal promoter of the CSRP2 gene has been shown to possess two hypoxia responsive elements that are targeted by HIF-1α. A model now is proposed whereby the CSRP2 gene is a direct target of HIF-1 which facilitates hypoxia-induced breast cancer cell invasion through increased invadopodia formation (6).

  1. Yet, S.F. et al. (1998) J Biol Chem 273, 10530-7.
  2. Jain, M.K. et al. (1998) Circ Res 83, 980-5.
  3. Weiskirchen, R. et al. (2001) Biochem J 359, 485-96.
  4. Hoffmann, C. et al. (2016) Oncotarget 7, 13688-705.
  5. Wang, S.J. et al. (2017) Oncotarget 8, 35984-36000.
  6. Hoffmann, C. et al. (2018) Sci Rep 8, 10191.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IHC-P: Immunohistochemistry (Paraffin) IF-IC: Immunofluorescence (Immunocytochemistry)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
SignalStain is a registered trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

限制使用

除非 CST 的合法授书代表以书面形式书行明确同意,否书以下条款适用于 CST、其关书方或分书商提供的书品。 任何书充本条款或与本条款不同的客书条款和条件,除非书 CST 的合法授书代表以书面形式书独接受, 否书均被拒书,并且无效。

专品专有“专供研究使用”的专专或专似的专专声明, 且未专得美国食品和专品管理局或其他外国或国内专管机专专专任何用途的批准、准专或专可。客专不得将任何专品用于任何专断或治专目的, 或以任何不符合专专声明的方式使用专品。CST 专售或专可的专品提供专作专最专用专的客专,且专用于研专用途。将专品用于专断、专防或治专目的, 或专专售(专独或作专专成)或其他商专目的而专专专品,均需要 CST 的专独专可。客专:(a) 不得专独或与其他材料专合向任何第三方出售、专可、 出借、捐专或以其他方式专专或提供任何专品,或使用专品制造任何商专专品,(b) 不得复制、修改、逆向工程、反专专、 反专专专品或以其他方式专专专专专品的基专专专或技专,或使用专品开专任何与 CST 的专品或服专专争的专品或服专, (c) 不得更改或专除专品上的任何商专、商品名称、徽专、专利或版专声明或专专,(d) 只能根据 CST 的专品专售条款和任何适用文档使用专品, (e) 专遵守客专与专品一起使用的任何第三方专品或服专的任何专可、服专条款或专似专专

Revision 4
#28601

CRP2 (E8R5N) Rabbit mAb

Western Blotting Image 1: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb(上图)和 β-Actin (D6A8) Rabbit mAb #8457(下图)对 T-47D 细胞和 RD 细胞的提取物进行蛋白质印迹分析。T-47D 和 RD 细胞之间的 CRP2 表达差异与其报告的分子表达谱一致 (www.depmap.org),从而证实了该抗体对 CRP2 蛋白的特异性。
Immunohistochemistry Image 1: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb 对石蜡包埋的人结肠癌细胞进行免疫组织化学分析。
Immunohistochemistry Image 2: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb 对石蜡包埋的人尿路上皮癌细胞进行免疫组织化学分析。
Immunohistochemistry Image 3: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb 对石蜡包埋的人肺神经内分泌癌细胞进行免疫组织化学分析。
Immunohistochemistry Image 4: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb 对石蜡包埋的人 B 细胞非霍奇金氏淋巴瘤细胞进行免疫组织化学分析。
Immunohistochemistry Image 5: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb 对石蜡包埋的人卵巢浆液性癌细胞进行免疫组织化学分析。
Immunohistochemistry Image 6: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb 对石蜡包埋的人前列腺癌细胞进行免疫组织化学分析。
Immunohistochemistry Image 7: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb 对石蜡包埋的正常人胸腺进行免疫组织化学分析。
Immunohistochemistry Image 8: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb 对石蜡包埋的正常人脾脏进行免疫组织化学分析。
Immunohistochemistry Image 9: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb 对石蜡包埋的小鼠肾脏进行免疫组织化学分析。
Immunohistochemistry Image 10: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb 对石蜡包埋的 Renca 同源肿瘤进行免疫组织化学分析。
Immunohistochemistry Image 11: CRP2 (E8R5N) Rabbit mAb Expand Image
以浓度匹配的 Rabbit (DA1E) mAb IgG XP® Isotype Control #3900(右图)作为对照,使用 CRP2 (E8R5N) Rabbit mAb(左图)对石蜡包埋的人胃肠间质瘤进行免疫组织化学分析。
Immunohistochemistry Image 12: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb 对石蜡包埋的 RD 细胞沉淀物(左图,阳性)或 T-47D 细胞沉淀物(右图,阴性)进行免疫组织化学分析。
Immunofluorescence Image 1: CRP2 (E8R5N) Rabbit mAb Expand Image
使用 CRP2 (E8R5N) Rabbit mAb(绿色)、DyLight 554 Phalloidin #13054(红色)和 DAPI #4083(蓝色)对 RD 细胞(左图,阳性)和 T-47D 细胞(右图,阴性)进行共聚焦免疫荧光分析。