7-80458742-C-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001102386.3(GNAT3):​c.994G>A​(p.Val332Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000487 in 1,600,544 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

GNAT3
NM_001102386.3 missense

Scores

1
7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.16

Publications

2 publications found
Variant links:
Genes affected
GNAT3 (HGNC:22800): (G protein subunit alpha transducin 3) Sweet, bitter, and umami tastes are transmitted from taste receptors by a specific guanine nucleotide binding protein. The protein encoded by this gene is the alpha subunit of this heterotrimeric G protein, which is found not only in the oral epithelium but also in gut tissues. Variations in this gene have been linked to metabolic syndrome. [provided by RefSeq, Dec 2015]
CD36 (HGNC:1663): (CD36 molecule (CD36 blood group)) The protein encoded by this gene is the fourth major glycoprotein of the platelet surface and serves as a receptor for thrombospondin in platelets and various cell lines. Since thrombospondins are widely distributed proteins involved in a variety of adhesive processes, this protein may have important functions as a cell adhesion molecule. It binds to collagen, thrombospondin, anionic phospholipids and oxidized LDL. It directly mediates cytoadherence of Plasmodium falciparum parasitized erythrocytes and it binds long chain fatty acids and may function in the transport and/or as a regulator of fatty acid transport. Mutations in this gene cause platelet glycoprotein deficiency. Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Feb 2014]
CD36 Gene-Disease associations (from GenCC):
  • platelet-type bleeding disorder 10
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.13633594).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GNAT3NM_001102386.3 linkc.994G>A p.Val332Ile missense_variant Exon 8 of 8 ENST00000398291.4 NP_001095856.1 A8MTJ3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GNAT3ENST00000398291.4 linkc.994G>A p.Val332Ile missense_variant Exon 8 of 8 1 NM_001102386.3 ENSP00000381339.3 A8MTJ3
CD36ENST00000435819.5 linkc.-477-27725C>T intron_variant Intron 1 of 16 2 ENSP00000399421.1 P16671-1

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152160
Hom.:
0
Cov.:
33
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:
0.00187
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000731
AC:
17
AN:
232692
AF XY:
0.0000955
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000476
AC:
69
AN:
1448266
Hom.:
0
Cov.:
28
AF XY:
0.0000667
AC XY:
48
AN XY:
719590
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33066
American (AMR)
AF:
0.00
AC:
0
AN:
43050
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25900
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39334
South Asian (SAS)
AF:
0.000825
AC:
69
AN:
83672
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53014
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5750
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1104568
Other (OTH)
AF:
0.00
AC:
0
AN:
59912
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.444
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000591
AC:
9
AN:
152278
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74450
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41572
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00187
AC:
9
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.442
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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.:
0
ExAC
AF:
0.0000745
AC:
9
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Nov 24, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.994G>A (p.V332I) alteration is located in exon 8 (coding exon 8) of the GNAT3 gene. This alteration results from a G to A substitution at nucleotide position 994, causing the valine (V) at amino acid position 332 to be replaced by an isoleucine (I). 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
Benign
0.14
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.13
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.40
T
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.88
D
M_CAP
Benign
0.063
D
MetaRNN
Benign
0.14
T
MetaSVM
Uncertain
0.20
D
MutationAssessor
Benign
0.17
N
PhyloP100
6.2
PrimateAI
Uncertain
0.69
T
PROVEAN
Benign
0.070
N
REVEL
Uncertain
0.51
Sift
Benign
0.77
T
Sift4G
Benign
1.0
T
Polyphen
1.0
D
Vest4
0.12
MutPred
0.54
Loss of catalytic residue at V332 (P = 0.0383);
MVP
0.89
MPC
0.045
ClinPred
0.29
T
GERP RS
5.5
Varity_R
0.11
gMVP
0.33
Mutation Taster
=15/85
disease causing

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

Other links and lift over

dbSNP: rs757519562; hg19: chr7-80088058; API