rs6979450

chr7-80506999-A-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001102386.3(GNAT3):c.118+4810T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.213 in 151,996 control chromosomes in the GnomAD database, including 5,905 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.21 (5905 hom., cov: 33)
• Consequence: GNAT3 NM_001102386.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0550

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]

LOC107986812 (HGNC:):

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.95).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.494 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GNAT3	NM_001102386.3	c.118+4810T>A		intron_variant		ENST00000398291.4
LOC107986812	XR_001745252.2	n.218-6046A>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GNAT3	ENST00000398291.4	c.118+4810T>A		intron_variant		1	NM_001102386.3	P1
CD36	ENST00000435819.5	c.-261+19218A>T		intron_variant		2		P1

Frequencies

GnomAD3 genomes AF: 0.212 AC: 32226 AN: 151878 Hom.: 5873 Cov.: 33

Gnomad AFR AF: 0.499

Gnomad AMI AF: 0.0164

Gnomad AMR AF: 0.107

Gnomad ASJ AF: 0.0709

Gnomad EAS AF: 0.145

Gnomad SAS AF: 0.108

Gnomad FIN AF: 0.0712

Gnomad MID AF: 0.152

Gnomad NFE AF: 0.107

Gnomad OTH AF: 0.174

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.213 AC: 32316 AN: 151996 Hom.: 5905 Cov.: 33 AF XY: 0.207 AC XY: 15408 AN XY: 74316

Gnomad4 AFR AF: 0.500

Gnomad4 AMR AF: 0.107

Gnomad4 ASJ AF: 0.0709

Gnomad4 EAS AF: 0.146

Gnomad4 SAS AF: 0.108

Gnomad4 FIN AF: 0.0712

Gnomad4 NFE AF: 0.107

Gnomad4 OTH AF: 0.173

Alfa AF: 0.161 Hom.: 439

Bravo AF: 0.228

Asia WGS AF: 0.150 AC: 517 AN: 3458

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.95
Cadd	Benign	2.2
Dann	Benign	0.45

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

Other links and lift over

dbSNP: rs6979450; hg19: chr7-80136315;