rs768628283

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 1P and 1B. PP3BS1_Supporting

The NM_005932.4(MIPEP):​c.485T>G​(p.Leu162Trp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00001 in 1,599,858 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

MIPEP
NM_005932.4 missense

Scores

9
6
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.21

Publications

0 publications found
Variant links:
Genes affected
MIPEP (HGNC:7104): (mitochondrial intermediate peptidase) The product of this gene performs the final step in processing a specific class of nuclear-encoded proteins targeted to the mitochondrial matrix or inner membrane. This protein is primarily involved in the maturation of oxidative phosphorylation (OXPHOS)-related proteins. This gene may contribute to the functional effects of frataxin deficiency and the clinical manifestations of Friedreich ataxia. [provided by RefSeq, Jul 2008]
MIPEP Gene-Disease associations (from GenCC):
  • lethal left ventricular non-compaction-seizures-hypotonia-cataract-developmental delay syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Broad Center for Mendelian Genomics
  • mitochondrial disease
    Inheritance: AR Classification: MODERATE Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.754
BS1
Variant frequency is greater than expected in population amr. GnomAdExome4 allele frequency = 0.0000104 (15/1447636) while in subpopulation AMR AF = 0.000338 (15/44388). AF 95% confidence interval is 0.000208. There are 0 homozygotes in GnomAdExome4. There are 7 alleles in the male GnomAdExome4 subpopulation. Median coverage is 27. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MIPEPNM_005932.4 linkc.485T>G p.Leu162Trp missense_variant Exon 4 of 19 ENST00000382172.4 NP_005923.3 Q99797
MIPEPXM_011535097.3 linkc.299T>G p.Leu100Trp missense_variant Exon 4 of 19 XP_011533399.1
MIPEPXM_011535098.4 linkc.485T>G p.Leu162Trp missense_variant Exon 4 of 17 XP_011533400.1
MIPEPXM_047430368.1 linkc.299T>G p.Leu100Trp missense_variant Exon 4 of 17 XP_047286324.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MIPEPENST00000382172.4 linkc.485T>G p.Leu162Trp missense_variant Exon 4 of 19 1 NM_005932.4 ENSP00000371607.3 Q99797

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152222
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000560
AC:
14
AN:
249808
AF XY:
0.0000445
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000380
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000104
AC:
15
AN:
1447636
Hom.:
0
Cov.:
27
AF XY:
0.00000971
AC XY:
7
AN XY:
721058
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33154
American (AMR)
AF:
0.000338
AC:
15
AN:
44388
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26032
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39636
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85478
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53390
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5742
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1099892
Other (OTH)
AF:
0.00
AC:
0
AN:
59924
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.00000657
AC:
1
AN:
152222
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74368
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41460
American (AMR)
AF:
0.0000654
AC:
1
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000741
AC:
9

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Lethal left ventricular non-compaction-seizures-hypotonia-cataract-developmental delay syndrome Uncertain:1
Aug 14, 2017
Undiagnosed Diseases Network, NIH
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Our patient inherited a p.L162W variant from his father and a partial gene deletion of MIPEP (exons 7 and 8) from his mother. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.85
BayesDel_addAF
Uncertain
0.038
T
BayesDel_noAF
Pathogenic
0.14
CADD
Pathogenic
27
DANN
Benign
0.96
DEOGEN2
Uncertain
0.53
D
Eigen
Pathogenic
0.93
Eigen_PC
Pathogenic
0.86
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.87
D
M_CAP
Benign
0.050
D
MetaRNN
Pathogenic
0.75
D
MetaSVM
Benign
-0.79
T
MutationAssessor
Pathogenic
3.7
H
PhyloP100
9.2
PrimateAI
Uncertain
0.67
T
PROVEAN
Pathogenic
-5.0
D
REVEL
Uncertain
0.59
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.79
MutPred
0.67
Gain of MoRF binding (P = 0.1068);
MVP
0.60
MPC
0.62
ClinPred
0.95
D
GERP RS
5.4
Varity_R
0.54
gMVP
0.88
Mutation Taster
=26/74
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs768628283; hg19: chr13-24453461; API