Technical Data

146463
Clone Type
Polyclonal
Host
Rabbit
Source
Human
Isotype
IgG
Grade
Affinity Purified
Applications
E IF IHC WB
Crossreactivity
Hu Mo Rt
Shipping Temp
Blue Ice
Storage Temp
-20°C
Rabbit Anti-THEM4 (Thioesterase Superfamily Member 4, Acyl-coenzyme A Thioesterase THEM4, Acyl-CoA Thioesterase THEM4, Carboxyl-terminal Modulator Protein, CTMP)

THEM4, also known as CTMP, binds specifically to the carboxy-terminal regulatory domain of PKB/Akt at the plasma membrane and acts as a negative regulator, reversing the phenotype of v-Akt-transformed cells. Hypermethylation of the THEM4 promoter and transcriptional downregulation of the gene has been reported in multiple glioblastomas, suggesting that epigenetic regulation of THEM4 may play a role in the progression of this cancer. Bioinformatic analysis, confirmed by in vitro testing, indicates that THEM4 is a broad-range, high activity acyl-CoA thioesterase. Recent reports have also indicated that TMEM4 is a mitochondrial protein whose overexpression is associated with an increase in mitochondrial membrane depolarization and caspase-3 and PARP cleavage, suggesting that THEM4 is involved in the apoptotic program. The additional higher molecular weight bands seen in the immunoblot may represent post-translationally modified TMEM4.

Applications
Suitable for use in ELISA, Western Blot, Immunofluorescence and Immunohistochemistry. Other applications not tested.
Recommended Dilution
Western Blot: 1-2ug/ml Immunohistochemistry (Formalin fixed paraffin embedded): 2.5ug/ml Immunofluorescence: 20ug/ml Optimal dilutions to be determined by the researcher.
Positive Control
Human Liver Tissue Lysate
Storage and Stability
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Immunogen
Synthetic peptide corresponding to 18aa from near the center of human THEM4.
Form
Supplied as a liquid in PBS, 0.02% sodium azide.
Purity
Purified by immunoaffinity chromatography.
Specificity
Recognizes human THEM4. Species Crossreactivity: mouse and rat.

Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.

References
1. Maira SM, Galetic I, Brazil DP, et al. Carboxyl-terminal modulator protein (CTMP), a negative regulator of PKB/Akt and v-Akt at the plasma membrane. Science 2001; 294:374-80. 2. Knobbe CB, Reifberger J, Blaschke B, et al. Hypermethylation and transcriptional downregulation of the carboxyl-terminal modulator protein gene in glioblastomas. J. Natl. Cancer Inst. 2004; 96:483-6. 3. Zhao H, Martin BM, Bisoffi M, et al. The Akt C-terminal modulator protein is an acyl-CoA thioesterase of the hotdog-fold family. Biochemistry 2009; 48:5507-9. 4. Parcellier A, Tintignac LA, Zhuravleva E, et al. Carboxy-terminal modulator protein (CTMP) is a mitochondrial protein that sensitizes cells to apoptosis. Cell Signal. 2009; 21:639-50.
USBio References
No references available
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