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#8354 Cofilin Activation Antibody Sampler Kit

 
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2019年1月17日15時10分 現在
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#8354T1 Kit99,000
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キット内容 容量 用途 種交差性 ホモロジー† 検出分子量 アイソタイプ
Cofilin (D3F9) XP® Rabbit mAb #5175 20 µl WB, IF-IC H, M, R, Mk, Dg 19 Rabbit IgG
Phospho-Cofilin (Ser3) (77G2) Rabbit mAb #3313 20 µl WB, IF-IC H, M, R, Mk, B 19 Rabbit IgG
LIMK2 (8C11) Rabbit mAb #3845 20 µl WB, F H, Mk M 70 Rabbit IgG
TESK1 (D49D4) Rabbit mAb #4655 20 µl WB, IP H 68 Rabbit IgG
ROCK1 (C8F7) Rabbit mAb #4035 20 µl WB, IP H, M, R, Mk 160 Rabbit
Chronophin/PDXP (C85E3) Rabbit mAb #4686 20 µl WB H, M, R, Hm, Mk, B 31 Rabbit IgG
SSH1 (E1K3W) Rabbit mAb #13578 20 µl WB, IP H, M, R 140 Rabbit IgG
Anti-rabbit IgG, HRP-linked Antibody #7074 100 µl WB Goat

†Species predicted to react based on 100% sequence homology.

Applications Key: W=Western Blotting, IF-IC=Immunofluorescence (Immunocytochemistry), F=Flow Cytometry, IP=Immunoprecipitation
Reactivity Key: H=Human, M=Mouse, R=Rat, Mk=Monkey, Dg=Dog, B=Bovine, Hm=Hamster

貯法
-20℃
社内データ

Western Blotting

Western Blotting

After the primary antibody is bound to the target protein, a complex with HRP-linked secondary antibody is formed. The LumiGLO® is added and emits light during enzyme catalyzed decomposition.

Western Blotting

Western Blotting

Western blot analysis of extracts from Colo201 and Jurkat cells, using LIMK2 (8C11) Rabbit mAb.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell types using Chronophin/PDXP (C85E3) Rabbit mAb.


Western Blotting

Western Blotting

Western blot analysis of extracts from various cell types using ROCK1 (C8F7) Rabbit mAb.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell types using TESK1 (D49D4) Rabbit mAb.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell types using Cofilin (D3F9) XP® Rabbit mAb.


Western Blotting

Western Blotting

Western blot analysis of COS cells, untreated or λ phosphatase-treated, using Phospho-Cofilin (Ser3) (77G2) Rabbit mAb (upper) or Cofilin Antiobdy #3312 (lower).

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines using SSH1 (E1K3W) Rabbit mAb.

Flow Cytometry

Flow Cytometry

Flow cytometric analysis of Jurkat cells, using LIMK2 (8C11) Rabbit mAb Antibody (blue) compared to a nonspecific negative control antibody (red).


IP

IP

Immunoprecipitation of ROCK1 from HeLa cell extracts using ROCK1 (C8F7) Rabbit mAb. Western blot detection was perfomed using the same antibody. Lane 1 is 5% input.

Western Blotting

Western Blotting

Western blot analysis of NIH/3T3 cells, λ phosphatase-treated or untreated, and various other cell lines, using Phospho-Cofilin (Ser3) (77G2) Rabbit mAb.

IF-IC

IF-IC

Confocal immunofluorescent analysis of HeLa cells using Cofilin (D3F9) XP® Rabbit mAb (green). Actin filaments have been labeled with DY-554 phalloidin (red).


Western Blotting

Western Blotting

Western blot analysis of extracts from 293T cells, mock transfected (-) or transfected with a construct expressing Myc/DDK-tagged full-length human SSH1 protein (hSSH1-Myc/DDK; +), using SSH1 (E1K3W) Rabbit mAb (upper) or Myc-Tag (71D10) Rabbit mAb #2278 (lower).

IF-IC

IF-IC

Confocal immunofluorescent analysis of MCF7 cells either untreated (left) or λ phosphatase-treated (right), using Phospho-Cofilin (Ser3) (77G2) Rabbit mAb (green). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).

IP

IP

Immunoprecipitation of SSH1 from Jurkat cell extracts. Lane is 10% input, lane 2 is Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, and lane 3 is SSH1 (E1K3W) Rabbit mAb. Western blot analysis was performed using SSH1 (E1K3W) Rabbit mAb.


バックグラウンド

Cofilin and actin-depolymerization factor (ADF) are members of a family of essential conserved small actin-binding proteins that play pivotal roles in cytokinesis, endocytosis, embryonic development, stress response, and tissue regeneration (1). In response to stimuli, cofilin promotes the regeneration of actin filaments by severing preexisting filaments (2). The severing activity of cofilin is inhibited by LIMK or TESK phosphorylation at Ser3 of cofilin (3-5). Phosphorylation at Ser3 also regulates cofilin translocation from the nucleus to the cytoplasm (6).

LIM kinases (LIMK1 and LIMK2) are serine/threonine kinases that have two zinc finger motifs, known as LIM motifs, in their amino-terminal regulatory domains (7). LIM kinases are involved in actin cytoskeletal regulation downstream of Rho-family GTPases, PAKs, and ROCK (8,9). PAK1 and ROCK phosphorylate LIMK1 or LIMK2 at the conserved Thr508 or Thr505 residues in the activation loop, increasing LIMK activity (9-11). Activated LIM kinases inhibit the actin depolymerization activity of cofilin by phosphorylation at the amino-terminal Ser3 residue of cofilin (12,13).

Testis-specific kinase 1 (TESK1) is an LIMK-related protein kinase originally identified to be highly expressed in testes and subsequently shown to be expressed in a wide variety of tissues and cell types (14-17). TESK1 phosphorylates the actin severing protein cofilin at Ser3, inactivating cofilin and thus regulating the organization of the actin cytoskeleton (15). Integrin signaling activates TESK1 activity and leads to stress fiber formation and cell spreading (15,18,19). TESK1 is involved in regulation of ERK signaling through its interaction with Spry2 (20) and regulation of cell spreading through its interaction with the focal adhesion protein actopaxin/α-parvin (18).

Chronophin (CIN, PDXP) is a haloacid dehalogenase phosphatase that dephosphorylates cofilin. Alteration of CIN activity through overexpression of either the wildtype or phosphatase-inactive mutant CIN interferes with actin dynamics, cell morphology and cytokinesis (21).

ROCK (Rho-associated kinase), a family of serine/threonine kinases, is an important downstream target of GTPase Rho and plays an important role in Rho-mediated signaling. Two isoforms of ROCK have been identified (ROCK1 and ROCK2). ROCK is composed of N-terminal catalytic, coiled-coil, and C-terminal PH (pleckstrin homology) domains. The C-terminus of ROCK negatively regulates its kinase activity (22,23). Caspase-3-induced cleavage of ROCK1 and direct cleavage of ROCK2 by granzyme B (grB) activates ROCK and leads to phosphorylation of myosin light chain and inhibition of myosin phosphatase (24). This phosphorylation may account for the mechanism by which Rho regulates cytokinesis, cell motility, cell membrane blebbing during apoptosis, and smooth muscle contraction (25-27).

Slingshot homolog 1 (SSH1) can also dephosphorylate LIMK kinases, suppressing LIMK phosphorylation of cofilin (28). In addition, SSH1 modulates actin dynamics by stabilizing F-actin and promoting actin bundling independent of its cofilin phosphatase activity (29). SSH1 activity is regulated by phosphorylation and protein-protein interaction through various signaling pathways (1). Binding of SSH1 to F-actin stimulates its cofilin phosphatase activity (30).

  1. Carlier, M.F. et al. (1999) J Biol Chem 274, 33827-30.
  2. Condeelis, J. (2001) Trends Cell Biol 11, 288-93.
  3. Arber, S. et al. (1998) Nature 393, 805-9.
  4. Yang, N. et al. (1998) Nature 393, 809-12.
  5. Toshima, J. et al. (2001) J Biol Chem 276, 31449-58.
  6. Nebl, G. et al. (1996) J Biol Chem 271, 26276-80.
  7. Okano, I. et al. (1995) J Biol Chem 270, 31321-30.
  8. Maekawa, M. et al. (1999) Science 285, 895-8.
  9. Edwards, D.C. et al. (1999) Nat Cell Biol 1, 253-9.
  10. Ohashi, K. et al. (2000) J Biol Chem 275, 3577-82.
  11. Sumi, T. et al. (2001) J Biol Chem 276, 670-6.
  12. Arber, S. et al. (1998) Nature 393, 805-9.
  13. Arber, S. et al. (1998) Nature 393, 805-9.
  14. Toshima, J. et al. (1995) J Biol Chem 270, 31331-7.
  15. Toshima, J. et al. (2001) Mol Biol Cell 12, 1131-45.
  16. Toshima, J. et al. (2001) J Biol Chem 276, 31449-58.
  17. Toshima, J. et al. (2001) Biochem Biophys Res Commun 286, 566-73.
  18. LaLonde, D.P. et al. (2005) J Biol Chem 280, 21680-8.
  19. Tsumura, Y. et al. (2005) Biochem J 387, 627-37.
  20. Chandramouli, S. et al. (2008) J Biol Chem 283, 1679-91.
  21. Gohla, A. et al. (2005) Nat Cell Biol 7, 21-9.
  22. Nakagawa, O. et al. (1996) FEBS Lett 392, 189-93.
  23. Lee, J.H. et al. (2004) J Cell Biol 167, 327-37.
  24. Sebbagh, M. et al. (2005) J Exp Med 201, 465-71.
  25. Amano, M. et al. (1996) J Biol Chem 271, 20246-9.
  26. Kureishi, Y. et al. (1997) J Biol Chem 272, 12257-60.
  27. Totsukawa, G. et al. (2000) J Cell Biol 150, 797-806.
  28. Soosairajah, J. et al. (2005) EMBO J 24, 473-86.
  29. Kurita, S. et al. (2007) Genes Cells 12, 663-76.
  30. Kurita, S. et al. (2008) J Biol Chem 283, 32542-52.
使用例
製品をご使用いただいて研究を発表されましたら、ぜひお知らせください

Tween is a registered trademark of ICI Americas, Inc.
DRAQ5 is a registered trademark of Biostatus Limited.
XP is a registered trademark of Cell Signaling Technology, Inc.
LumiGLO is a registered trademark of Kirkegaard & Perry Laboratories.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
U.S. Patent No. 7,429,487, foreign equivalents, and child patents deriving therefrom.

本製品は試験研究用です。

Cofilin Activation Antibody Sampler Kit

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