Genetic Variant ATL2:p.Ser308Arg (chr2-38310330-T-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001135673.4(ATL2):c.922A>C(p.Ser308Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,134 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S308G) has been classified as Uncertain significance.

Frequency

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

Consequence

ATL2
NM_001135673.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.30

Publications

0 publications found

Variant links:

Genes affected

ATL2 (HGNC:24047): (atlastin GTPase 2) Enables identical protein binding activity. Involved in Golgi organization; endoplasmic reticulum tubular network membrane organization; and protein homooligomerization. Located in endoplasmic reticulum tubular network membrane. Is integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ATL2 Gene-Disease associations (from GenCC):

Tourette syndrome
Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

ATL2 links:

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ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.16851524).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001135673.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ATL2	NM_001135673.4	MANE Select	c.922A>C	p.Ser308Arg	missense	Exon 8 of 13	NP_001129145.1	Q8NHH9-1
ATL2	NM_001330463.2		c.922A>C	p.Ser308Arg	missense	Exon 8 of 14	NP_001317392.1
ATL2	NM_001330462.1		c.907A>C	p.Ser303Arg	missense	Exon 8 of 14	NP_001317391.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ATL2	ENST00000378954.9	TSL:1 MANE Select	c.922A>C	p.Ser308Arg	missense	Exon 8 of 13	ENSP00000368237.4	Q8NHH9-1
ATL2	ENST00000405384.6	TSL:1	n.*527A>C		non_coding_transcript_exon	Exon 7 of 12	ENSP00000383944.2	F8WD17
ATL2	ENST00000405384.6	TSL:1	n.*527A>C		3_prime_UTR	Exon 7 of 12	ENSP00000383944.2	F8WD17

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152134

Hom.:

Cov.:

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152134

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74320

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41424

American (AMR)

AF:

0.00

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68014

Other (OTH)

AF:

0.00

AC:

AN:

2094

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Benign

-0.095

BayesDel_noAF

Benign

-0.37

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.080

Eigen

Benign

-0.27

Eigen_PC

Benign

-0.053

FATHMM_MKL

Uncertain

0.88

LIST_S2

Benign

0.83

M_CAP

Benign

0.0092

MetaRNN

Benign

0.17

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

PhyloP100

1.3

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-0.61

REVEL

Benign

0.070

Sift

Benign

0.23

Sift4G

Benign

0.48

Polyphen

0.0020

Vest4

0.29

MutPred

0.31

Gain of solvent accessibility (P = 0.0739)

MVP

0.40

MPC

0.15

ClinPred

0.36

GERP RS

5.5

Varity_R

0.066

gMVP

0.31

Mutation Taster

=82/18

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over