16-56192252-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP2PP3_ModeratePP5

The ENST00000262493.12(GNAO1):​c.17G>T​(p.Ser6Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

GNAO1
ENST00000262493.12 missense

Scores

15
3
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.53
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), GNAO1. . Gene score misZ 3.1919 (greater than the threshold 3.09). Trascript score misZ 4.549 (greater than threshold 3.09). GenCC has associacion of gene with developmental and epileptic encephalopathy, 17, neurodevelopmental disorder with involuntary movements, developmental and epileptic encephalopathy, movement disorder.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.934
PP5
Variant 16-56192252-G-T is Pathogenic according to our data. Variant chr16-56192252-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 1802165.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GNAO1NM_020988.3 linkuse as main transcriptc.17G>T p.Ser6Ile missense_variant 1/9 ENST00000262493.12 NP_066268.1
GNAO1NM_138736.3 linkuse as main transcriptc.17G>T p.Ser6Ile missense_variant 1/8 NP_620073.2
GNAO1XR_007064866.1 linkuse as main transcriptn.764G>T non_coding_transcript_exon_variant 1/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GNAO1ENST00000262493.12 linkuse as main transcriptc.17G>T p.Ser6Ile missense_variant 1/91 NM_020988.3 ENSP00000262493 P1P09471-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
1444788
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
718652
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy, 17 Pathogenic:1
Pathogenic, no assertion criteria providedresearchKey Laboratory of Neurobehavioral Science for Children, Children's Hospital Affiliated of Zhengzhou University-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Pathogenic
0.43
D
BayesDel_noAF
Pathogenic
0.38
CADD
Pathogenic
34
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.70
D;.;D;.;T;.
Eigen
Pathogenic
0.99
Eigen_PC
Pathogenic
0.88
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.98
.;D;D;D;D;D
M_CAP
Pathogenic
0.61
D
MetaRNN
Pathogenic
0.93
D;D;D;D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.1
H;.;H;H;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.88
D
PROVEAN
Uncertain
-4.1
D;.;.;D;.;.
REVEL
Pathogenic
0.93
Sift
Pathogenic
0.0
D;.;.;D;.;.
Sift4G
Pathogenic
0.0
D;.;.;D;D;.
Polyphen
1.0
D;.;D;D;.;.
Vest4
0.52
MutPred
0.76
Loss of disorder (P = 0.0213);Loss of disorder (P = 0.0213);Loss of disorder (P = 0.0213);Loss of disorder (P = 0.0213);Loss of disorder (P = 0.0213);Loss of disorder (P = 0.0213);
MVP
0.90
MPC
2.9
ClinPred
1.0
D
GERP RS
4.8
Varity_R
0.93
gMVP
0.99

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.29
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.29
Position offset: 6

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-56226164; API