rs199476118
Variant summary
Our verdict is Pathogenic. Variant got 13 ACMG points: 13P and 0B. PS1_ModeratePM2PP3PP5_Very_Strong
The ENST00000361390.2(MT-ND1):c.154G>A(p.Ala52Thr) variant causes a missense change. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt.
Frequency
Mitomap GenBank:
Absent
Consequence
MT-ND1
ENST00000361390.2 missense
ENST00000361390.2 missense
Scores
Apogee2
Pathogenic
Clinical Significance
LHON
Conservation
PhyloP100: 6.38
Genes affected
MT-ND1 (HGNC:7455): (mitochondrially encoded NADH dehydrogenase 1) Enables NADH dehydrogenase (ubiquinone) activity. Involved in mitochondrial electron transport, NADH to ubiquinone and mitochondrial respiratory chain complex I assembly. Located in mitochondrial membrane. Part of mitochondrial respiratory chain complex I. Implicated in several diseases, including MELAS syndrome; neurodegenerative disease (multiple); optic nerve disease (multiple); toxic shock syndrome; and type 2 diabetes mellitus. Biomarker of Alzheimer's disease; Parkinson's disease; and multiple sclerosis. [provided by Alliance of Genome Resources, Apr 2022]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 13 ACMG points.
PS1
?
Transcript ENST00000361390.2 (MT-ND1) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt
PM2
?
No frequency data in Mitomap. Probably very rare.
PP3
?
Apogee2 supports a deletorius effect, 0.86939347 >= 0.5 .
PP5
?
Variant M-3460-G-A is Pathogenic according to our data. Variant chrM-3460-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 9722.Status of the report is reviewed_by_expert_panel, 3 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MT-ND1 | ENST00000361390.2 | c.154G>A | p.Ala52Thr | missense_variant | 1/1 | P1 |
Frequencies
GnomAD4 exome Cov.: 0
GnomAD4 exome
Cov.:
0
We have no GnomAD4 genomes data on this position. Probably position not covered by the project.
Gnomad homoplasmic
AF:
AC:
0
AN:
56426
Gnomad heteroplasmic
AF:
AC:
1
AN:
56426
Mitomap
LHON
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:8Other:2
Revision: reviewed by expert panel
LINK: link
Submissions by phenotype
Leber optic atrophy Pathogenic:4Other:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Jul 10, 2007 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Wong Mito Lab, Molecular and Human Genetics, Baylor College of Medicine | Oct 17, 2019 | The NC_012920.1:m.3460G>A (YP_003024026.1:p.Ala52Thr) variant in MTND1 gene is interpretated to be a Pathogenic variant based on the modified ACMG guidelines (unpublished). This variant meets the following evidence codes: PS1, PS3 - |
not provided, no classification provided | literature only | GeneReviews | - | This variant is one of the three most common causes of LHON. - |
Pathogenic, criteria provided, single submitter | clinical testing | Mendelics | May 04, 2022 | - - |
Pathogenic, no assertion criteria provided | clinical testing | Genomics England Pilot Project, Genomics England | - | - - |
not provided Pathogenic:2
Pathogenic, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | Nov 22, 2017 | m.3460G>A is one of a small number of primary variants which are causative of Leber hereditary optic neuropathy (LHON; MIM: 535000; Howell 1992). It is estimated that 15%-25% of LHON families carry the g.3460G>A variant (Howell 1991). - |
Pathogenic, criteria provided, single submitter | clinical testing | Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen | Oct 23, 2020 | - - |
Mitochondrial disease Pathogenic:1
Pathogenic, reviewed by expert panel | curation | ClinGen Mitochondrial Disease Nuclear and Mitochondrial Variant Curation Expert Panel, ClinGen | Apr 25, 2023 | The m.3460G>A (p.A52T) variant in MT-ND1 has been reported in affected individuals from more than 50 kindreds (PS4, PMIDs: 1928099, 1674640, 7629530, 1734726, 1550131, 8496715, 8024249, 8556281, 8571959, 12205655, 11906302, 12807863, 12518276, 16738010, 17122117, 18216301, 18562849, 20232220, 21887510, 25338955, 25053773, 28314831, 30053855, 30591017). While this variant is one of the three most common variants associated with Leber Hereditary Optic Neuropathy (LHON; PMID: 20301353), affected individuals can also have other features. Indeed, several individuals have been reported with multiple sclerosis. Other features have been variably seen in affected individuals including sensorineural hearing loss, auditory neuropathy, epilepsy, migraines, Parkinsonism, dystonia, Leigh syndrome, spinal cord lesions, myoclonus, myopathy, hypertension, high triglycerides, diabetes, and cardiac involvement. Testing excluding separate etiologies for these features has been limited. Heteroplasmy levels in affected individuals ranged from 58% to homoplasmy. Age of onset varied from four years old to 75 years old. This variant segregated with disease in multiple affected members in multiple families and several healthy family members had lower to undetectable levels of the variant (PP1_moderate; PMIDs: 1734726, 8571959, 11906302). There is one reported de novo occurrence to our knowledge (PM6_supporting; PMID: 12518276). This variant is present in the healthy population, which is to be expected given the known reduced penetrance of this variant. The computational predictor APOGEE gives a consensus rating of pathogenic with a score of 0.86 (Min=0, Max=1), which predicts a damaging effect on gene function (PP3). Extensive cybrid studies supported the functional impact of this variant, as do E. coli and mouse studies (PS3_moderate PMIDs: 35383288, 22079202, 15720387, 15883259, 15342361, 10976107). In summary, this variant meets criteria to be classified as pathogenic for primary mitochondrial disease inherited in a mitochondrial manner. This classification was approved by the NICHD/NINDS U24 ClinGen Mitochondrial Disease Variant Curation Expert Panel on April 25, 2023. Mitochondrial DNA-specific ACMG/AMP criteria applied (PMID: 32906214): PS4, PP1_moderate, PM6_supporting, PP3, PS3_moderate. - |
MITOCHONDRIAL COMPLEX I DEFICIENCY, MITOCHONDRIAL TYPE 3 Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Jul 10, 2007 | - - |
Leigh syndrome Other:1
not provided, no classification provided | literature only | GeneReviews | - | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
Apogee2
Pathogenic
Hmtvar
Pathogenic
AlphaMissense
Pathogenic
BayesDel_addAF
Uncertain
D
DEOGEN2
Benign
T
LIST_S2
Benign
T
MutationAssessor
Uncertain
M
MutationTaster
Benign
A
PROVEAN
Uncertain
N
Sift4G
Pathogenic
D
GERP RS
Varity_R
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at