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- Table of Contents
Facts about Transmembrane protein 33.
Positively regulates PERK-mediated and IRE1-mediated unfolded protein response signaling (PubMed:26268696). .
| Human | |
|---|---|
| Gene Name: | TMEM33 |
| Uniprot: | P57088 |
| Entrez: | 55161 |

| Belongs to: |
|---|
| PER33/POM33 family |

DB83; FLJ10525; Protein DB83; SHINC3,1600019D15Rik; transmembrane protein 33
Mass (kDA):
27.978 kDA

| Human | |
|---|---|
| Location: | 4p13 |
| Sequence: | 4; NC_000004.12 (41935120..41960803) |
Prostate cancer and several cancer cell lines (at protein level). Widely expressed. Expressed at higher levels in endocrine-resistant breast cancer cells as compared to endocrine-sensitive breast cancer cells. Expressed at higher levels in early recurrence breast cancer tissues as compared to non-recurrent breast tumors.
Endoplasmic reticulum membrane; Multi-pass membrane protein. Melanosome. Nucleus envelope. Identified by mass spectrometry in melanosome fractions from stage I to stage IV. Co-localizes with RTN4 at the ER sheets.



PMID: 25612671 by Urade T., et al. Identification and characterization of TMEM33 as a reticulon-binding protein.
PMID: 26268696 by Sakabe I., et al. TMEM33: a new stress-inducible endoplasmic reticulum transmembrane protein and modulator of the unfolded protein response signaling.