rs767423681

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The NM_145207.3(AFG2A):​c.1365G>A​(p.Leu455Leu) variant causes a synonymous change. The variant allele was found at a frequency of 0.0000528 in 1,608,980 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. L455L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000052 ( 0 hom. )

Consequence

AFG2A
NM_145207.3 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 3.68

Publications

0 publications found
Variant links:
Genes affected
AFG2A (HGNC:18119): (AFG2 AAA ATPase homolog A) This gene encodes a member of the ATPase associated with diverse activities family, whose members are defined by a highly conserved ATPase domain. Members of this family participate in diverse cellular processes that include membrane fusion, DNA replication, microtubule severing, and protein degradation. The protein encoded by this gene has a putative mitochondrial targeting sequence and has been proposed to function in maintenance of mitochondrial function and integrity during mouse spermatogenesis. Allelic variants in this gene have been associated with epilepsy, hearing loss, and cognitive disability syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016]
AFG2A Gene-Disease associations (from GenCC):
  • microcephaly-intellectual disability-sensorineural hearing loss-epilepsy-abnormal muscle tone syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet, PanelApp Australia

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.51).
BP6
Variant 4-122938156-G-A is Benign according to our data. Variant chr4-122938156-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 542393.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AFG2ANM_145207.3 linkc.1365G>A p.Leu455Leu synonymous_variant Exon 8 of 16 ENST00000274008.5 NP_660208.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AFG2AENST00000274008.5 linkc.1365G>A p.Leu455Leu synonymous_variant Exon 8 of 16 1 NM_145207.3 ENSP00000274008.3
AFG2AENST00000422835.2 linkn.1407G>A non_coding_transcript_exon_variant Exon 8 of 15 1
AFG2AENST00000675612.1 linkc.1362G>A p.Leu454Leu synonymous_variant Exon 8 of 17 ENSP00000502453.1
AFG2AENST00000674886.1 linkn.1427G>A non_coding_transcript_exon_variant Exon 8 of 11

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152096
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000523
AC:
13
AN:
248412
AF XY:
0.0000447
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000115
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000522
AC:
76
AN:
1456884
Hom.:
0
Cov.:
30
AF XY:
0.0000469
AC XY:
34
AN XY:
724504
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33368
American (AMR)
AF:
0.00
AC:
0
AN:
44210
Ashkenazi Jewish (ASJ)
AF:
0.000192
AC:
5
AN:
26052
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39516
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84876
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53296
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5750
European-Non Finnish (NFE)
AF:
0.0000586
AC:
65
AN:
1109632
Other (OTH)
AF:
0.0000831
AC:
5
AN:
60184
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
3
7
10
14
17
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:
0.0000592
AC:
9
AN:
152096
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74302
show subpopulations
African (AFR)
AF:
0.0000966
AC:
4
AN:
41418
American (AMR)
AF:
0.00
AC:
0
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4806
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.553
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.0000900
Hom.:
0
Bravo
AF:
0.0000453

ClinVar

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

Submissions by phenotype

not provided Benign:2
Apr 27, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Oct 01, 2023
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

AFG2A: BP4, BP7 -

Microcephaly-intellectual disability-sensorineural hearing loss-epilepsy-abnormal muscle tone syndrome Benign:1
Jun 21, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely 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
-0.51
CADD
Benign
10
DANN
Benign
0.41
PhyloP100
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=98/2
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.13
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: rs767423681; hg19: chr4-123859311; API