LYRM7
Complex III assembly factor LYRM7
Also known as: C5orf31, FLJ20796, LYRM7_HUMAN, MZM1L
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q5U5X0
- Gene
- LYRM7
- Ensembl
- ENSG00000186687
- Chromosome
- 5
- Canonical length
- 104 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted intracellular proteins
OverviewNCBI Gene
Inner mitochondrial membrane complex III (CIII) is the main enzyme complex in the mitochondrial respiratory chain, and Rieske Fe-S protein (UQCRFS1) is the last catalytic subunit added to the complex. The protein encoded by this gene is a nuclear-encoded mitochondrial matrix protein that stabilizes UQCRFS1 and chaperones it to the CIII complex. Defects in this gene are a cause of mitochondrial complex III deficiency, nuclear type 8. Three transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jun 2014]
Canonical amino-acid sequenceUniProt
104 residues, UniProt reviewed canonical sequence.
>Q5U5X0|LYRM7
1 MGRAVKVLQL FKTLHRTRQQ VFKNDARALE AARIKINEEF KNNKSETSSK KIEELMKIGS
61 DVELLLRTSV IQGIHTDHNT LKLVPRKDLL VENVPYCDAP TQKQLocalizationUniProt · AlphaFold · HPA
Whether an antibody against LYRM7 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
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.43
- Highest tissue expression
- 32 nTPM
Expression across tissuesHPA
Tissue
- tongue: 32 nTPM
- skeletal muscle: 25 nTPM
- testis: 21 nTPM
- cerebral cortex: 12 nTPM
- heart muscle: 11 nTPM
- colon: 8.8 nTPM
Single-cell type
- late spermatids: 346 nCPM
- late primary spermatocytes: 252 nCPM
- early spermatids: 145 nCPM
- myonuclei: 65 nCPM
- erythrocyte progenitors: 50 nCPM
- early primary spermatocytes: 47 nCPM
Immune cell
- naive CD4 T-cell: 23 nTPM
- naive B-cell: 22 nTPM
- naive CD8 T-cell: 22 nTPM
- memory B-cell: 21 nTPM
- plasmacytoid DC: 17 nTPM
- memory CD4 T-cell: 17 nTPM
Brain region
- white matter: 24 nTPM
- thalamus: 22 nTPM
- cerebral cortex: 22 nTPM
- hypothalamus: 21 nTPM
- basal ganglia: 20 nTPM
- pons: 20 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about LYRM7.
Disease | AllUniProt
Conditions LYRM7 is implicated in, by any mechanism.
- Mitochondrial complex III deficiency, nuclear type 8 (MC3DN8) MIM:615838
Disease | GeneticClinVar
14 pathogenic / likely-pathogenic of 97 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Mitochondrial complex III deficiency nuclear type 8
- Mitochondrial complex III deficiency nuclear type 1
- Ovarian cancer
- Sarcoma
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)
- 1.44
- gnomAD pLI
- 0.02
- gnomAD missense Z
- 0.74
- DepMap mean gene effect
- -0.06
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Complex 1 LYR protein domain
- Complex 1 protein (LYR family)
- LYRM7, LYR domain
- Mitochondrial Zinc Maintenance Protein 1 / LYRM7
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of LYRM7 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads LYRM7 as an antibody target. Whether an autoantibody or antibody against LYRM7 could matter depends on whether native LYRM7 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
LYRM7 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label LYRM7 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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