rs766294940

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PP3PP5_Very_Strong

The NM_002936.6(RNASEH1):​c.424G>A​(p.Val142Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000174 in 1,612,902 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 1 hom. )

Consequence

RNASEH1
NM_002936.6 missense

Scores

2
9
7

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:6

Conservation

PhyloP100: 6.42

Publications

10 publications found
Variant links:
Genes affected
RNASEH1 (HGNC:18466): (ribonuclease H1) This gene encodes an endonuclease that specifically degrades the RNA of RNA-DNA hybrids and plays a key role in DNA replication and repair. Alternate in-frame start codon initiation results in the production of alternate isoforms that are directed to the mitochondria or to the nucleus. The production of the mitochondrial isoform is modulated by an upstream open reading frame (uORF). Mutations in this gene have been found in individuals with progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal recessive 2. Alternative splicing results in additional coding and non-coding transcript variants. Pseudogenes of this gene have been defined on chromosomes 2 and 17. [provided by RefSeq, Jul 2017]
RNASEH1 Gene-Disease associations (from GenCC):
  • progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal recessive 2
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • adult-onset chronic progressive external ophthalmoplegia with mitochondrial myopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Leigh syndrome
    Inheritance: AR Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.836
PP5
Variant 2-3550458-C-T is Pathogenic according to our data. Variant chr2-3550458-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 372197.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002936.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RNASEH1
NM_002936.6
MANE Select
c.424G>Ap.Val142Ile
missense
Exon 4 of 8NP_002927.2
RNASEH1
NM_001378272.1
c.421G>Ap.Val141Ile
missense
Exon 4 of 8NP_001365201.1
RNASEH1
NM_001378273.1
c.424G>Ap.Val142Ile
missense
Exon 4 of 8NP_001365202.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RNASEH1
ENST00000315212.4
TSL:1 MANE Select
c.424G>Ap.Val142Ile
missense
Exon 4 of 8ENSP00000313350.3O60930
ENSG00000286905
ENST00000658393.1
n.424G>A
non_coding_transcript_exon
Exon 4 of 12ENSP00000499330.1
RNASEH1
ENST00000861506.1
c.538G>Ap.Val180Ile
missense
Exon 5 of 9ENSP00000531565.1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152062
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000438
AC:
11
AN:
251392
AF XY:
0.0000368
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000173
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1460840
Hom.:
1
Cov.:
31
AF XY:
0.0000220
AC XY:
16
AN XY:
726750
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33456
American (AMR)
AF:
0.000157
AC:
7
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26118
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39688
South Asian (SAS)
AF:
0.000116
AC:
10
AN:
86236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53382
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000720
AC:
8
AN:
1111128
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60352
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152062
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74266
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41392
American (AMR)
AF:
0.0000655
AC:
1
AN:
15260
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000312
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000494
AC:
6
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Pathogenic/Likely pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
3
-
-
Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal recessive 2 (3)
2
-
-
not provided (2)
1
-
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.32
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.42
T
Eigen
Uncertain
0.49
Eigen_PC
Uncertain
0.48
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.82
T
M_CAP
Uncertain
0.10
D
MetaRNN
Pathogenic
0.84
D
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
1.1
L
PhyloP100
6.4
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-0.93
N
REVEL
Uncertain
0.29
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.010
D
Polyphen
1.0
D
Vest4
0.84
MutPred
0.52
Loss of sheet (P = 0.1158)
MVP
0.49
MPC
0.84
ClinPred
0.34
T
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.62
gMVP
0.60
Mutation Taster
=19/81
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs766294940; hg19: chr2-3598048; API