chr3-50257061-C-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2

The NM_002070.4(GNAI2):​c.848C>A​(p.Pro283His) variant causes a missense change. The variant allele was found at a frequency of 0.0000239 in 1,461,724 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. P283P) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

GNAI2
NM_002070.4 missense

Scores

2
9
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.97
Variant links:
Genes affected
GNAI2 (HGNC:4385): (G protein subunit alpha i2) The protein encoded by this gene is an alpha subunit of guanine nucleotide binding proteins (G proteins). The encoded protein contains the guanine nucleotide binding site and is involved in the hormonal regulation of adenylate cyclase. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), GNAI2. . Gene score misZ 3.1524 (greater than the threshold 3.09). Trascript score misZ 4.063 (greater than threshold 3.09). GenCC has associacion of gene with ventricular tachycardia, familial.
BS2
High AC in GnomAdExome4 at 35 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GNAI2NM_002070.4 linkuse as main transcriptc.848C>A p.Pro283His missense_variant 7/9 ENST00000313601.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GNAI2ENST00000313601.11 linkuse as main transcriptc.848C>A p.Pro283His missense_variant 7/91 NM_002070.4 P1P04899-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251396
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135870
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000239
AC:
35
AN:
1461724
Hom.:
0
Cov.:
32
AF XY:
0.0000179
AC XY:
13
AN XY:
727158
show subpopulations
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:
0.0000315
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 09, 2021The c.848C>A (p.P283H) alteration is located in exon 7 (coding exon 7) of the GNAI2 gene. This alteration results from a C to A substitution at nucleotide position 848, causing the proline (P) at amino acid position 283 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.39
BayesDel_addAF
Uncertain
0.027
T
BayesDel_noAF
Benign
-0.20
CADD
Uncertain
23
DANN
Benign
0.95
DEOGEN2
Pathogenic
0.93
.;.;D;.;.
Eigen
Uncertain
0.27
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.77
T;T;T;.;T
M_CAP
Benign
0.056
D
MetaRNN
Uncertain
0.43
T;T;T;T;T
MetaSVM
Uncertain
0.25
D
MutationAssessor
Benign
1.9
.;.;L;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Uncertain
0.67
T
PROVEAN
Pathogenic
-6.2
D;.;D;D;D
REVEL
Uncertain
0.50
Sift
Benign
0.25
T;.;T;T;T
Sift4G
Benign
0.28
T;T;T;T;T
Polyphen
0.0010
.;.;B;.;.
Vest4
0.20
MutPred
0.61
.;.;Loss of ubiquitination at K278 (P = 0.0573);.;.;
MVP
0.80
MPC
2.0
ClinPred
0.98
D
GERP RS
3.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.66
gMVP
0.80

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs782530894; hg19: chr3-50294493; API