Cell Signaling Technology

Product Pathways - Autophagy Signaling

MTMR14 Antibody #9057

Applications Reactivity Sensitivity MW (kDa) Source
W H Endogenous 80 Rabbit

Applications Key:  W=Western Blotting
Reactivity Key:  H=Human
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

MTMR14 Antibody recognizes endogenous levels of total MTMR14 protein.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Arg500 of human MTMR14 protein. Antibodies are purified by protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines using MTMR14 Antibody.

Background

Myotubularin-related protein 14 (MTMR14), also known as Jumpy, is a myotubularin-related phosphoinositol-3-phosphate (PI3P) phosphatase (1). Mutations in the MTMR14 gene have been associated with centronuclear myopathy (1). MTMR14 deficiency in mice leads to altered calcium homeostasis and muscle disorders (2). MTMR14 has also been shown to play a role in autophagy, a process that is highly regulated by phosphatidylinositides through the type III PI3K, Vps34 (3). MTMR14 was localized to autophagic isolation membranes and early autophagosomes (3). In these studies, MTMR14 inhibited autophagy and mutations of MTMR14 associated with centronuclear myopathy were also defective in autophagy inhibition. In zebrafish, MTMR14 knockdown was shown to increase the number of autophagosomes, suggesting that its activity is associated with an inhibition of autophagy (4).

  1. Tosch, V. et al. (2006) Hum Mol Genet 15, 3098-106.
  2. Shen, J. et al. (2009) Nat Cell Biol 11, 769-76.
  3. Vergne, I. et al. (2009) EMBO J 28, 2244-58.
  4. Gibbs, E.M. et al. (2010) Autophagy 6, 819-20.

Application References

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For Research Use Only. Not For Use In Diagnostic Procedures.

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