Tbio SPATA18 Mitochondria-eating protein

Protein Summary

Description

Key regulator of mitochondrial quality that mediates the repairing or degradation of unhealthy mitochondria in response to mitochondrial damage. Mediator of mitochondrial protein catabolic process (also named MALM) by mediating the degradation of damaged proteins inside mitochondria by promoting the accumulation in the mitochondrial matrix of hydrolases that are characteristic of the lysosomal lumen. Also involved in mitochondrion degradation of damaged mitochondria by promoting the formation of vacuole-like structures (named MIV), which engulf and degrade unhealthy mitochondria by accumulating lysosomes. The physical interaction of SPATA18/MIEAP, BNIP3 and BNIP3L/NIX at the mitochondrial outer membrane regulates the opening of a pore in the mitochondrial double membrane in order to mediate the translocation of lysosomal proteins from the cytoplasm to the mitochondrial matrix. This gene encodes a p53-inducible protein that is able to induce lysosome-like organelles within mitochondria that eliminate oxidized mitochondrial proteins, thereby contributing to mitochondrial quality control. Dysregulation of mitochondrial quality control is associated with cancer and degenerative diseases. The encoded protein mediates accumulation of the lysosome-like mitochondrial organelles through interaction with B cell lymphoma 2 interacting protein 3 and B cell lymphoma 2 interacting protein 3 like at the outer mitochondrial membrane, which allows translocation of lysosomal proteins to the mitochondrial matrix from the cytosol. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016]

Uniprot Accession IDs

• Q8TC71
• B4E2R0
• E5RLK1
• Q8IY48
• Q8N7D7

Gene Name

• SPATA18

Ensembl ID

• ENST00000295213
• ENSP00000295213
• ENSG00000163071
• ENST00000419395
• ENSP00000415309

Symbol

• MIEAP
• Mieap
• SPETEX1

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
tissue sample	0.67
cellular component	0.64
cell type or tissue	0.63
histone modification site profile	0.56
gene perturbation	0.47

Protein Classes

No PANTHER Classes or DTO Classes found

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 21.46   (req: < 5)

Gene RIFs: 12   (req: <= 3)

Antibodies: 111   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 21.46   (req: >= 5)

Gene RIFs: 12   (req: > 3)

Antibodies: 111   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 3

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0