TMEM127
Transmembrane protein 127
Also known as: FLJ20507, FLJ22257, TM127_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O75204
- Gene
- TMEM127
- Ensembl
- ENSG00000135956
- Chromosome
- 2
- Canonical length
- 238 aa
- Protein class
- Cancer-related genes, Disease related genes, Human disease related genes, Potential drug targets, Predicted membrane proteins, Transporters
OverviewNCBI Gene
This gene encodes a transmembrane protein with four predicted transmembrane domains. The protein is associated with a subpopulation of vesicular organelles corresponding to early endosomal structures, with the Golgi, and with lysosomes, and may participate in protein trafficking between these structures. Mutations in this gene and several other genes cause pheochromocytomas. Alternatively spliced transcript variants encoding the same protein have been identified. [provided by RefSeq, Aug 2022]
Canonical amino-acid sequenceUniProt
238 residues, UniProt reviewed canonical sequence.
>O75204|TMEM127
1 MYAPGGAGLP GGRRRRSPGG SALPKQPERS LASALPGALS ITALCTALAE PAWLHIHGGT
61 CSRQELGVSD VLGYVHPDLL KDFCMNPQTV LLLRVIAAFC FLGILCSLSA FLLDVFGPKH
121 PALKITRRYA FAHILTVLQC ATVIGFSYWA SELILAQQQQ HKKYHGSQVY VTFAVSFYLV
181 AGAGGASILA TAANLLRHYP TEEEEQALEL LSEMEENEPY PAEYEVINQF QPPPAYTPLocalizationUniProt · AlphaFold · HPA
Whether an antibody against TMEM127 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 3
- Mean surface accessibility (rSASA)
- 0.38
- Highest tissue expression
- 69 nTPM
Expression across tissuesHPA
Tissue
- parathyroid gland: 69 nTPM
- heart muscle: 63 nTPM
- bone marrow: 50 nTPM
- seminal vesicle: 40 nTPM
- esophagus: 38 nTPM
- salivary gland: 37 nTPM
Single-cell type
- neutrophils: 223 nCPM
- esophageal apical cells: 167 nCPM
- monocytes: 84 nCPM
- kupffer cells: 82 nCPM
- neutrophil progenitors: 68 nCPM
- colonocytes: 66 nCPM
Immune cell
- neutrophil: 14 nTPM
- eosinophil: 8.2 nTPM
- intermediate monocyte: 6.6 nTPM
- classical monocyte: 6.3 nTPM
- non-classical monocyte: 5.3 nTPM
- myeloid DC: 4.3 nTPM
Brain region
- cerebral cortex: 66 nTPM
- thalamus: 66 nTPM
- midbrain: 59 nTPM
- amygdala: 57 nTPM
- pons: 54 nTPM
- hypothalamus: 53 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about TMEM127.
Disease | AllUniProt
Conditions TMEM127 is implicated in, by any mechanism.
- Pheochromocytoma (PCC) MIM:171300
Disease | GeneticClinVar
123 pathogenic / likely-pathogenic of 1,155 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Hereditary pheochromocytoma and paraganglioma
- Hereditary cancer-predisposing syndrome
- Pheochromocytoma
- Pheochromocytoma, susceptibility to
- Inherited phaeochromocytoma and paraganglioma excluding NF1
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.15
- gnomAD pLI
- 0.01
- gnomAD missense Z
- 0.45
- DepMap mean gene effect
- -0.23
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- endosome organization
- negative regulation of cell population proliferation
- negative regulation of TOR signaling
- regulation of TOR signaling
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Transmembrane protein 127
- Transmembrane protein 127, transmembrane region
- Transmembrane protein 127
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads TMEM127 as an antibody target. Whether an autoantibody or antibody against TMEM127 could matter depends on whether native TMEM127 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
TMEM127 is annotated at the cell surface, where native TMEM127 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label TMEM127 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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