Expression and characterization of transmembrane and coiled-coil domain family 3

  • Sohn, Wern-Joo (Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University) ;
  • Kim, Jae-Young (Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University) ;
  • Kim, Dongbum (Center for Medical Science Research, College of Medicine, Hallym University) ;
  • Park, Jeong-A (Department of Biochemistry, College of Natural Sciences, Chungbuk National University) ;
  • Lee, Younghee (Department of Biochemistry, College of Natural Sciences, Chungbuk National University) ;
  • Kwon, Hyung-Joo (Center for Medical Science Research, College of Medicine, Hallym University)
  • Received : 2016.08.29
  • Accepted : 2016.09.27
  • Published : 2016.11.30


Transmembrane and coiled-coil domain family 3 (TMCC3) has been reported to be expressed in the human brain; however, its function is still unknown. Here, we found that expression of TMCC3 is higher in human whole brain, testis and spinal cord compared to other human tissues. TMCC3 was expressed in mouse developing hind brain, lung, kidney and somites, with strongest expression in the mesenchyme of developing tongue. By expression of recombinant TMCC3 and its deletion mutants, we found that TMCC3 proteins self-assemble to oligomerize. Immunostaining and confocal microscopy data revealed that TMCC3 proteins are localized in endoplasmic reticulum through transmembrane domains. Based on immunoprecipitation and mass spectroscopy data, TMCC3 proteins associate with TMCC3 and 14-3-3 proteins. This supports the idea that TMCC3 proteins form oligomers and that 14-3-3 may be involved in the function of TMCC3. Taken together, these results may be useful for better understanding of uncharacterized function of TMCC3.


Domains;Localization;Tissue expression;TMCC3;14-3-3


Supported by : National Research Foundation of Korea (NRF)


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