Genetic Variant IQSEC3:p.Gln95Gln (chr12-67167-G-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_ModerateBP6_ModerateBP7

The NM_001170738.2(IQSEC3):c.285G>A(p.Gln95Gln) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000078 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

IQSEC3
NM_001170738.2 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.72

Publications

0 publications found

Variant links:

Genes affected

IQSEC3 (HGNC:29193): (IQ motif and Sec7 domain ArfGEF 3) Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in several processes, including actin cytoskeleton organization; activation of GTPase activity; and regulation of small GTPase mediated signal transduction. Located in cytosol and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

IQSEC3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.46).

BP6

Variant 12-67167-G-A is Benign according to our data. Variant chr12-67167-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2642555.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=1.72 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IQSEC3	NM_001170738.2 link	c.285G>A	p.Gln95Gln	synonymous_variant	Exon 1 of 14	ENST00000538872.6	NP_001164209.1	Q9UPP2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IQSEC3	ENST00000538872.6 link	c.285G>A	p.Gln95Gln	synonymous_variant	Exon 1 of 14	5	NM_001170738.2	ENSP00000437554.1		Q9UPP2-1

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152232

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.000865

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

GnomAD2 exomes

AF:

0.000135

AC:

AN:

126134

AF XY:

0.000203

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000842

Gnomad ASJ exome

AF:

0.00132

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000627

Gnomad OTH exome

AF:

0.000255

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000776

AC:

107

AN:

1379264

Hom.:

Cov.:

AF XY:

0.0000882

AC XY:

AN XY:

680378

show subpopulations

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

African (AFR)

AF:

0.000478

AC:

AN:

31370

American (AMR)

AF:

0.0000562

AC:

AN:

35612

Ashkenazi Jewish (ASJ)

AF:

0.00148

AC:

AN:

24996

East Asian (EAS)

AF:

0.00

AC:

AN:

35700

South Asian (SAS)

AF:

0.000114

AC:

AN:

78980

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33872

Middle Eastern (MID)

AF:

0.000490

AC:

AN:

4082

European-Non Finnish (NFE)

AF:

0.0000279

AC:

AN:

1077084

Other (OTH)

AF:

0.000208

AC:

AN:

57568

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.341

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000919

AC:

AN:

152346

Hom.:

Cov.:

AF XY:

0.0000805

AC XY:

AN XY:

74496

show subpopulations

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

African (AFR)

AF:

0.000217

AC:

AN:

41560

American (AMR)

AF:

0.0000653

AC:

AN:

15314

Ashkenazi Jewish (ASJ)

AF:

0.000865

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68042

Other (OTH)

AF:

0.00

AC:

AN:

2114

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.004292), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000192

Hom.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Oct 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

IQSEC3: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Benign

0.97

PhyloP100

1.7

PromoterAI

0.079

Neutral

(source)

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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12-67167-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over