YME1L1

The protein encoded by this gene is the human ortholog of yeast mitochondrial AAA metalloprotease, Yme1p. It is localized in the mitochondria and can functionally complement a yme1 disruptant yeast strain. It is proposed that this gene plays a role in mitochondrial protein metabolism and could be involved in mitochondrial pathologies. Three transcript variants encoding different isoforms have been found for this gene.

Full Name

YME1-like 1 (S. cerevisiae)

Function

ATP-dependent metalloprotease that catalyzes the degradation of folded and unfolded proteins with a suitable degron sequence in the mitochondrial intermembrane region (PubMed:26923599, PubMed:27786171).
Plays an important role in regulating mitochondrial morphology and function by cleaving OPA1 at position S2, giving rise to a form of OPA1 that promotes maintenance of normal mitochondrial structure and mitochondrial protein metabolism (PubMed:18076378, PubMed:26923599, PubMed:27495975).
Ensures cell proliferation, maintains normal cristae morphology and complex I respiration activity, promotes antiapoptotic activity and protects mitochondria from the accumulation of oxidatively damaged membrane proteins (PubMed:22262461).
Required for normal, constitutive degradation of PRELID1 (PubMed:27495975).
Catalyzes the degradation of OMA1 in response to membrane depolarization (PubMed:26923599).
Required to control the accumulation of nonassembled respiratory chain subunits (NDUFB6, OX4 and ND1) (PubMed:22262461).

Biological Process

Biological Process cell population proliferation Source:UniProtKB1 Publication
Biological Process mitochondrial protein catabolic process Source:UniProtKB2 Publications
Biological Process mitochondrial protein processing Source:UniProtKB1 Publication
Biological Process mitochondrion organization Source:UniProtKB2 Publications
Biological Process negative regulation of apoptotic process Source:UniProtKB1 Publication
Biological Process protein hexamerization Source:UniProtKB1 Publication
Biological Process protein quality control for misfolded or incompletely synthesized proteins Source:UniProtKB1 Publication
Biological Process proteolysis Source:GO_Central1 Publication

Cellular Location

Mitochondrion inner membrane
Mitochondrion

Involvement in disease

Optic atrophy 11 (OPA11):
An autosomal recessive disease characterized by progressive visual loss in association with optic atrophy. Atrophy of the optic disk indicates a deficiency in the number of nerve fibers which arise in the retina and converge to form the optic disk, optic nerve, optic chiasm and optic tracts. OPA11 patients also manifest delayed psychomotor development, intellectual disability, ataxia, and leukoencephalopathy on brain imaging.

Topology

Mitochondrial matrix: 1-295
Helical: 296-316
Mitochondrial intermembrane: 317-773

PTM

Proteolytically processed by mitochondrial processing peptidase (MPP) to generate the mature form.