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REACTIVITY SENSITIVITY MW (kDa) SOURCE
65 Rabbit

Product Usage Information

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

Specificity / Sensitivity

FEZ1 Antibody recognizes endogenous levels of total FEZ1 protein.


Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of human FEZ1 protein. Antibodies are purified by protein A and peptide affinity chromatography.

The coiled-coil containing protein fasciculation and elongation protein zeta-1 (FEZ1) is expressed predominately in the brain and is the mammalian ortholog of the C. elegans protein UNC-76. It was identified independently in several interaction screens using distinct baits and was shown to play a role in neuronal differentiation and outgrowth, viral defense, centrosome organization, cytoskeletal signaling, and autophagy (reviewed in 1). It was originally identified as a binding partner and substrate for PKCζ and was found to induce the neuronal differentiation of PC-12 cells when co-expressed with active PKCζ (2). FEZ1 was also found to be an interacting partner with the schizophrenia-associated protein DISC1, which may suggest a role for FEZ1 in schizophrenia as well as other mental disorders (3,4). FEZ1 has also been shown to bind to several cytoskeletal proteins, including kinesins, tubulins, JIP1, NEK1, and CLASP2, which supports its role in neurite outgrowth, cargo transport along microtubules, and centrosomal organization (5-7). Additional research studies have shown that FEZ1 interacts with a viral agnoprotein and plays a role in viral defense, including during HIV-1 infection (8-10). Another screen identified FEZ1 as a binding partner for the ubiquitin ligase E4B and showed that FEZ1 can be regulated through polyubiquitination (11). Moreover, degradation of FEZ1 by the ubiquitination-proteasomal pathway through cdc20 provides a mechanism for FEZ1 in dendritic outgrowth (12). FEZ1 was also found to regulate autophagy through association with ULK1 and Beclin-1 complexes (13).


1.  Maturana, A.D. et al. (2010) ScientificWorldJournal 10, 1646-54.

2.  Kuroda, S. et al. (1999) J Cell Biol 144, 403-11.

3.  Miyoshi, K. et al. (2003) Mol Psychiatry 8, 685-94.

4.  Kang, E. et al. (2011) Neuron 72, 559-71.

5.  Fujita, T. et al. (2007) Biochem Biophys Res Commun 361, 605-10.

6.  Blasius, T.L. et al. (2007) J Cell Biol 176, 11-7.

7.  Lanza, D.C. et al. (2010) Mol Cell Biochem 338, 35-45.

8.  Suzuki, T. et al. (2005) J Biol Chem 280, 24948-56.

9.  Naghavi, M.H. et al. (2005) Genes Dev 19, 1105-15.

10.  Haedicke, J. et al. (2009) Proc Natl Acad Sci U S A 106, 14040-5.

11.  Okumura, F. et al. (2004) J Biol Chem 279, 53533-43.

12.  Watanabe, Y. et al. (2014) Cell Rep 7, 552-64.

13.  McKnight, N.C. et al. (2012) EMBO J 31, 1931-46.


Entrez-Gene Id 9638
Swiss-Prot Acc. Q99689


For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
Tween is a registered trademark of ICI Americas, Inc.

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FEZ1 Antibody