rs756883753

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_004208.4(AIFM1):​c.366A>G​(p.Glu122Glu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000777 in 1,210,116 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 39 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000089 ( 0 hom., 3 hem., cov: 23)
Exomes 𝑓: 0.000077 ( 0 hom. 36 hem. )

Consequence

AIFM1
NM_004208.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.579

Publications

0 publications found
Variant links:
Genes affected
AIFM1 (HGNC:8768): (apoptosis inducing factor mitochondria associated 1) This gene encodes a flavoprotein essential for nuclear disassembly in apoptotic cells, and it is found in the mitochondrial intermembrane space in healthy cells. Induction of apoptosis results in the translocation of this protein to the nucleus where it affects chromosome condensation and fragmentation. In addition, this gene product induces mitochondria to release the apoptogenic proteins cytochrome c and caspase-9. Mutations in this gene cause combined oxidative phosphorylation deficiency 6 (COXPD6), a severe mitochondrial encephalomyopathy, as well as Cowchock syndrome, also known as X-linked recessive Charcot-Marie-Tooth disease-4 (CMTX-4), a disorder resulting in neuropathy, and axonal and motor-sensory defects with deafness and cognitive disability. Alternative splicing results in multiple transcript variants. A related pseudogene has been identified on chromosome 10. [provided by RefSeq, Aug 2015]
RAB33A (HGNC:9773): (RAB33A, member RAS oncogene family) The protein encoded by this gene belongs to the small GTPase superfamily, Rab family. It is GTP-binding protein and may be involved in vesicle transport. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BP6
Variant X-130147860-T-C is Benign according to our data. Variant chrX-130147860-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 367891.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.579 with no splicing effect.
BS2
High Hemizygotes in GnomAd4 at 3 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AIFM1NM_004208.4 linkc.366A>G p.Glu122Glu synonymous_variant Exon 4 of 16 ENST00000287295.8 NP_004199.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AIFM1ENST00000287295.8 linkc.366A>G p.Glu122Glu synonymous_variant Exon 4 of 16 1 NM_004208.4 ENSP00000287295.3 O95831-1
AIFM1ENST00000675092.1 linkc.366A>G p.Glu122Glu synonymous_variant Exon 4 of 16 ENSP00000501772.1 A0A6Q8PFE1

Frequencies

GnomAD3 genomes
AF:
0.0000892
AC:
10
AN:
112089
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.0000324
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00302
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000126
AC:
23
AN:
182113
AF XY:
0.000164
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00283
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000247
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000765
AC:
84
AN:
1098027
Hom.:
0
Cov.:
31
AF XY:
0.0000991
AC XY:
36
AN XY:
363409
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26400
American (AMR)
AF:
0.00
AC:
0
AN:
35206
Ashkenazi Jewish (ASJ)
AF:
0.00325
AC:
63
AN:
19384
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30205
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54144
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40441
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4137
European-Non Finnish (NFE)
AF:
0.0000107
AC:
9
AN:
842018
Other (OTH)
AF:
0.000260
AC:
12
AN:
46092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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:
0.0000892
AC:
10
AN:
112089
Hom.:
0
Cov.:
23
AF XY:
0.0000876
AC XY:
3
AN XY:
34241
show subpopulations
African (AFR)
AF:
0.0000324
AC:
1
AN:
30827
American (AMR)
AF:
0.00
AC:
0
AN:
10534
Ashkenazi Jewish (ASJ)
AF:
0.00302
AC:
8
AN:
2649
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3584
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2670
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6115
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
239
European-Non Finnish (NFE)
AF:
0.0000188
AC:
1
AN:
53278
Other (OTH)
AF:
0.00
AC:
0
AN:
1509
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.000347
Hom.:
3
Bravo
AF:
0.000110

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Nov 06, 2019
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Severe X-linked mitochondrial encephalomyopathy Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Combined oxidative phosphorylation deficiency;CN118851:Charcot-Marie-Tooth Neuropathy X Benign:1
Dec 19, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
3.0
DANN
Benign
0.41
PhyloP100
-0.58

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: rs756883753; hg19: chrX-129281835; API