rs141057479

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

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

The NM_020988.3(GNAO1):c.414A>G(p.Gln138Gln) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000668 in 1,614,248 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 (★★).

Frequency

Genomes: 𝑓 0.00054 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00068 ( 0 hom. )

Consequence

GNAO1
NM_020988.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 2.29

Publications

0 publications found

Variant links:

Genes affected

GNAO1 (HGNC:4389): (G protein subunit alpha o1) The protein encoded by this gene represents the alpha subunit of the Go heterotrimeric G-protein signal-transducing complex. Defects in this gene are a cause of early-onset epileptic encephalopathy. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2015]

GNAO1 Gene-Disease associations (from GenCC):

developmental and epileptic encephalopathy, 17
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
genetic developmental and epileptic encephalopathy
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
movement disorder
Inheritance: AD Classification: DEFINITIVE Submitted by: Illumina, ClinGen
neurodevelopmental disorder with involuntary movements
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

GNAO1 links:

Genome browser will be placed here

new If you want to explore the variant's impact on the transcript NM_020988.3, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

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=-0.53).

BP6

Variant 16-56328741-A-G is Benign according to our data. Variant chr16-56328741-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 415872.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=2.29 with no splicing effect.

BS2

High AC in GnomAd4 at 82 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020988.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GNAO1	NM_020988.3	MANE Select	c.414A>G	p.Gln138Gln	synonymous	Exon 4 of 9	NP_066268.1	P09471-1
	GNAO1	NM_138736.3		c.414A>G	p.Gln138Gln	synonymous	Exon 4 of 8	NP_620073.2	P09471-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
GNAO1	ENST00000262493.12	TSL:1 MANE Select	c.414A>G	p.Gln138Gln	synonymous	Exon 4 of 9	ENSP00000262493.6	P09471-1
GNAO1	ENST00000262494.13	TSL:1	c.414A>G	p.Gln138Gln	synonymous	Exon 4 of 8	ENSP00000262494.7	P09471-2
GNAO1	ENST00000638705.1	TSL:1	c.414A>G	p.Gln138Gln	synonymous	Exon 4 of 8	ENSP00000491223.1	P09471-1

Frequencies

GnomAD3 genomes

AF:

0.000539

AC:

AN:

152242

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000981

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:

0.000808

Gnomad OTH

AF:

0.000955

GnomAD2 exomes

AF:

0.000664

AC:

167

AN:

251490

AF XY:

0.000670

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.00119

Gnomad ASJ exome

AF:

0.0000992

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000967

Gnomad OTH exome

AF:

0.00114

GnomAD4 exome

AF:

0.000682

AC:

997

AN:

1461888

Hom.:

Cov.:

AF XY:

0.000637

AC XY:

463

AN XY:

727248

show subpopulations

African (AFR)

AF:

0.000179

AC:

AN:

33478

American (AMR)

AF:

0.00119

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000927

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000374

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00156

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000790

AC:

879

AN:

1112008

Other (OTH)

AF:

0.000646

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.472

Heterozygous variant carriers

148

198

247

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

128

160

<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:

0.000538

AC:

AN:

152360

Hom.:

Cov.:

AF XY:

0.000483

AC XY:

AN XY:

74502

show subpopulations

African (AFR)

AF:

0.000240

AC:

AN:

41598

American (AMR)

AF:

0.000980

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000808

AC:

AN:

68030

Other (OTH)

AF:

0.000945

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.512

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:

0.000849

Hom.:

Bravo

AF:

0.000771

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.000818

EpiControl

AF:

0.00119

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Early-infantile DEE (1)

Inborn genetic diseases (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.53

CADD

Benign

7.6

(source)

DANN

Benign

0.55

PhyloP100

2.3

PromoterAI

-0.019

Neutral

(source)

Mutation Taster

=99/1

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over