Revision 3
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, IF-IC

REACTIVITY:

M

SENSITIVITY:

Endogenous

MW (kDa):

54

Source/Isotype:

Rabbit IgG

UniProt ID:

#Q9D2Y4

Entrez-Gene Id:

74568

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunofluorescence (Immunocytochemistry) 1:1600

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.

For a carrier free (BSA and azide free) version of this product see product #17825.

Specificity / Sensitivity

Phospho-MLKL (Ser345) (D6E3G) Rabbit mAb recognizes endogenous levels of mouse MLKL protein only when phosphorylated at Ser345. Weak, non-specific nuclear staining has been observed by immunofluorescence (IF-IC).

Species Reactivity:

Mouse

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic phospho-peptide corresponding to residues surrounding Ser345 of mouse MLKL protein.

Background

Necroptosis, a regulated pathway for necrotic cell death, is triggered by a number of inflammatory signals including cytokines in the tumor necrosis factor (TNF) family, pathogen sensors such as toll-like receptors (TLRs), and ischemic injury (1,2). The process is negatively regulated by caspases and is initiated through a complex containing the RIP1 and RIP3 kinases, typically referred to as the necrosome. Mixed lineage kinase domain-like protein (MLKL) is a pseudokinase that was identified as a downstream target of RIP3 in the necroptosis pathway (3,4). During necroptosis RIP3 is phosphorylated at Ser227, which recruits MLKL and leads to its phosphorylation at Thr357 and Ser358 (3). Knockdown of MLKL through multiple mechanisms results in inhibition of necroptosis (3-5). While the precise mechanism for MLKL-induced necroptosis is unclear, some studies have shown that necroptosis leads to oligomerization of MLKL and translocation to the plasma membrane, where it affects membrane integrity (6-9).

  1. Christofferson, D.E. and Yuan, J. (2010) Curr Opin Cell Biol 22, 263-8.
  2. Kaczmarek, A. et al. (2013) Immunity 38, 209-23.
  3. Sun, L. et al. (2012) Cell 148, 213-27.
  4. Wang, Z. et al. (2012) Cell 148, 228-43.
  5. Wu, J. et al. (2013) Cell Res 23, 994-1006.
  6. Cai, Z. et al. (2014) Nat Cell Biol 16, 55-65.
  7. Chen, X. et al. (2014) Cell Res 24, 105-21.
  8. Wang, H. et al. (2014) Mol Cell 54, 133-46.
  9. Dondelinger, Y. et al. (2014) Cell Rep 7, 971-81.

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 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.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

Limited Uses

Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

Revision 3
#37333

Phospho-MLKL (Ser345) (D6E3G) Rabbit mAb

Western Blotting Image 1: Phospho-MLKL (Ser345) (D6E3G) Rabbit mAb Expand Image
Western blot analysis of L-929 cells, untreated (-), or treated with combinations of the following treatments as indicated: Z-VAD (20 μM, added 30 min prior to other compounds; +), Mouse Tumor Necrosis Factor-α (mTNF-α) #5178 (20 ng/ml, 4 hr; +), SM-164 (100 nM, 4 hr; +), and necrostatin-1 (Nec-1, 50 μM, 4 hr; +), using Phospho-MLKL (Ser345) (D6E3G) Rabbit mAb (upper), total MLKL (D6W1K) Rabbit mAb (Mouse Specific) #37705 (middle), or β-Actin (D6A8) Rabbit mAb #8457 (lower).
Immunofluorescence Image 1: Phospho-MLKL (Ser345) (D6E3G) Rabbit mAb Expand Image
Confocal immunofluorescent analysis of L-929 cells, untreated (left), pre-treated with Z-VAD (20 μM, 30 min) followed by treatment with SM-164 (100 nM) and Mouse Tumor Necrosis Factor-α (mTNF-α) #5178 (20 ng/mL, 2.5 hr; center) and then post-processed with λ-phosphatase (right), using Phospho-MLKL (Ser345) (D6E3G) Rabbit mAb (green). Red = Propidium Iodide (PI)/RNase Staining Solution #4087 (fluorescent DNA dye).