rs776366099

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PP3_Strong

The NM_015459.5(ATL3):​c.557T>G​(p.Leu186Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000376 in 1,595,236 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L186P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

ATL3
NM_015459.5 missense

Scores

16
2
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.16

Publications

2 publications found
Variant links:
Genes affected
ATL3 (HGNC:24526): (atlastin GTPase 3) This gene encodes a member of a family of dynamin-like, integral membrane GTPases. The encoded protein is required for the proper formation of the network of interconnected tubules of the endoplasmic reticulum. Mutations in this gene may be associated with hereditary sensory neuropathy type IF. Alternatively spliced transcript variants that encode distinct isoforms have been described. [provided by RefSeq, Feb 2014]
ATL3 Gene-Disease associations (from GenCC):
  • neuropathy, hereditary sensory, type 1F
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen
  • hereditary sensory and autonomic neuropathy type 1
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.945

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ATL3NM_015459.5 linkc.557T>G p.Leu186Arg missense_variant Exon 5 of 13 ENST00000398868.8 NP_056274.3 Q6DD88

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ATL3ENST00000398868.8 linkc.557T>G p.Leu186Arg missense_variant Exon 5 of 13 1 NM_015459.5 ENSP00000381844.3 Q6DD88
ATL3ENST00000538786.1 linkc.503T>G p.Leu168Arg missense_variant Exon 5 of 13 2 ENSP00000437593.1 F5H6I7
ENSG00000256789ENST00000540307.2 linkn.553+1193A>C intron_variant Intron 3 of 3 3

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152232
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000863
AC:
2
AN:
231636
AF XY:
0.00000793
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:
0.0000185
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000277
AC:
4
AN:
1443004
Hom.:
0
Cov.:
30
AF XY:
0.00000139
AC XY:
1
AN XY:
717536
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32240
American (AMR)
AF:
0.00
AC:
0
AN:
39868
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25648
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39048
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81630
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53190
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5034
European-Non Finnish (NFE)
AF:
0.00000361
AC:
4
AN:
1106726
Other (OTH)
AF:
0.00
AC:
0
AN:
59620
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.412
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

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:
0.0000131
AC:
2
AN:
152232
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74376
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41460
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4838
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:
0.0000294
AC:
2
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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:
0.0000673
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.00000828
AC:
1

ClinVar

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

Submissions by phenotype

Neuropathy, hereditary sensory, type 1F Uncertain:1
Jan 20, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces leucine with arginine at codon 186 of the ATL3 protein (p.Leu186Arg). The leucine residue is highly conserved and there is a moderate physicochemical difference between leucine and arginine. This variant is present in population databases (rs776366099, ExAC 0.002%). This variant has not been reported in the literature in individuals with ATL3-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.46
D
BayesDel_noAF
Pathogenic
0.45
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.72
D;.
Eigen
Pathogenic
0.91
Eigen_PC
Pathogenic
0.82
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Pathogenic
0.36
D
MetaRNN
Pathogenic
0.95
D;D
MetaSVM
Pathogenic
0.85
D
MutationAssessor
Pathogenic
3.9
H;.
PhyloP100
9.2
PrimateAI
Pathogenic
0.86
D
PROVEAN
Pathogenic
-5.5
D;D
REVEL
Pathogenic
0.93
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0010
D;D
Polyphen
1.0
D;.
Vest4
0.96
MVP
1.0
MPC
1.2
ClinPred
1.0
D
GERP RS
5.2
Varity_R
0.94
gMVP
0.93
Mutation Taster
=16/84
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: rs776366099; hg19: chr11-63419412; API