Cell Signaling Technology

Product Pathways - Lymphocyte Signaling

Phospho-LCP1 (Tyr28) Antibody #5277

No. Size Price
5277S 100 µl ( 10 western blots ) ¥4,050.00 现货查询 购买询价 防伪查询
5277 carrier free & custom formulation / quantityemail request
Applications Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
W 1:1000 Human, Endogenous 70 Rabbit

Species cross-reactivity is determined by western blot.

Applications Key: W=Western Blotting,

Specificity / Sensitivity

Phospho-LCP1 (Tyr28) Antibody detects endogenous levels of LCP1 protein only when phosphorylated on Tyr28.

Phospho-LCP1 (Tyr28) Antibody仅检测在Tyr28位点磷酸化的内源性LCP1总蛋白。

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr28 of human LCP1 protein. Antibodies are purified by protein A and peptide affinity chromatography.


Western Blotting

Western Blotting

Western blot analysis of extracts from MOLT-15 and MV-4-11 cells, untreated or treated with λ-phosphatase, using Phospho-LCP1 (Tyr28) Antibody (upper) and LCP1 Antibody #5350 (lower).

使用Phospho-LCP1 (Tyr28) Antibody (上图)和LCP1 Antibody #5350 (下图),免疫印迹(Western Blot)分析MOLT-15和MV-4-11细胞中Phospho-LCP1和LCP1蛋白水平。


Highly conserved and widely expressed plastin proteins comprise a subset of actin-binding proteins that include proteins that promote actin bundling. Three plastins exhibiting differential expression are found in mammals and include L-plastin, T-plastin and I-plastin. T-plastin (plastin-3) is found in cells of most solid tissues while I-plastin (plastin-1) is expressed specifically in kidney, colon and small intestine (1-3). L-plastin (plastin-2) or LCP1 (lymphocyte cytosolic protein 1) is mainly expressed in hematopoietic cells and nonhematopoietic tumors, including increased expression correlated with metastatic progression in colon cancer cell lines (4). Overexpression of LCP1 in premetastatic cancer cell lines induces invasion and loss of E-cadherin expression, which is characteristic of metastatic cancer cell lines (5). LCP1 becomes phosphorylated at Ser5 upon stimulation through the T-cell receptor/co-receptor complex (TCR/CD3) in association with the CD2 cell adhesion molecule or the CD28 receptor (6). Phosphorylation at Ser5 increases LCP1 ability to bind F-actin and increase cell motility (7,8).

高度保守和广泛表达的plastin蛋白由actin结合蛋白的一部分组成,它包含促进actin捆绑的蛋白。在哺乳动物中发现三种plastins蛋白展示的不同表达水平,包含L-plastin、T-plastin和I-plastin。 T-plastin (plastin-3)蛋白在实体性组织的细胞中被发现,而I-plastin (plastin-1)蛋白在肾脏、结肠和小肠特异性表达(1-3)。L-plastin (plastin-2)或LCP1 (lymphocyte cytosolic protein 1)蛋白主要在造血干细胞和非造血系统肿瘤中表达,包括在结肠癌细胞系中与转移性发展相关的增加性表达。在转移前癌细胞中LCP1蛋白的过表达可诱导入侵和E-cadherin蛋白表达的减少,这是转移性癌细胞的特征(5)。通过T-cell receptor/co-receptor complex (TCR/CD3)与CD2细胞粘附分子或CD28受体相联系的刺激,LCP1蛋白在Ser5位点磷酸化 (6)。在Ser5位点磷酸化增加LCP1蛋白结合F-actin的能力和增加细胞运动性(7,8)。

Phosphorylation of LCP1 on Tyr28 was identified at Cell Signaling Technology (CST) using PhosphoScan®, CST's LC-MS/MS platform for phosphorylation site discovery as well as other publications using MS technology (9). Phosphorylation of LCP1 at Tyr28 is seen in many leukemic cell lines (9-12).

与其它产品使用MS technology一样,对于磷酸化位点的发现Cell Signaling Technology (CST)公司使用PhosphoScan®, CST's LC-MS/MS平台鉴定LCP1蛋白在Tyr28位点磷酸化(9)。LCP1蛋白在Tyr28位点磷酸化在许多白血病细胞系中发现(9-12)。

  1. Lin, C.S. et al. (1993) J Biol Chem 268, 2781-92.
  2. Lin, C.S. et al. (1994) Mol Cell Biol 14, 2457-67.
  3. Delanote, V. et al. (2005) Acta Pharmacol Sin 26, 769-79.
  4. Otsuka, M. et al. (2001) Biochem Biophys Res Commun 289, 876-81.
  5. Foran, E. et al. (2006) Int J Cancer 118, 2098-104.
  6. Wabnitz, G.H. et al. (2007) Eur J Immunol 37, 649-62.
  7. Janji, B. et al. (2006) J Cell Sci 119, 1947-60.
  8. Klemke, M. et al. (2007) Int J Cancer 120, 2590-9.
  9. Rush, J. et al. (2005) Nat Biotechnol 23, 94-101.
  10. Rikova, K. et al. (2007) Cell 131, 1190-203.
  11. Gu, T.L. et al. (2007) Blood 110, 323-33.
  12. Walters, D.K. et al. (2006) Leuk Res 30, 1097-104.

Application References

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Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.

Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.

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