rs13335146

Positions:

• chr16-53954581-T-G

Variant summary

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

The NM_001080432.3(FTO):​c.1364+20472T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0677 in 152,116 control chromosomes in the GnomAD database, including 1,188 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 0.068 (1188 hom., cov: 32)
• Consequence: FTO NM_001080432.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.506

Genes affected

FTO (HGNC:24678): (FTO alpha-ketoglutarate dependent dioxygenase) This gene is a nuclear protein of the AlkB related non-haem iron and 2-oxoglutarate-dependent oxygenase superfamily but the exact physiological function of this gene is not known. Other non-heme iron enzymes function to reverse alkylated DNA and RNA damage by oxidative demethylation. Studies in mice and humans indicate a role in nervous and cardiovascular systems and a strong association with body mass index, obesity risk, and type 2 diabetes. [provided by RefSeq, Jul 2011]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.92).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.229 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FTO	NM_001080432.3	c.1364+20472T>G		intron_variant		ENST00000471389.6	NP_001073901.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FTO	ENST00000471389.6	c.1364+20472T>G		intron_variant		1	NM_001080432.3	ENSP00000418823	P1

Frequencies

GnomAD3 genomes AF: 0.0676 AC: 10276 AN: 151998 Hom.: 1184 Cov.: 32

Gnomad AFR AF: 0.233

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0314

Gnomad ASJ AF: 0.00144

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00145

Gnomad FIN AF: 0.0000943

Gnomad MID AF: 0.00949

Gnomad NFE AF: 0.00101

Gnomad OTH AF: 0.0439

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

GnomAD4 genome AF: 0.0677 AC: 10298 AN: 152116 Hom.: 1188 Cov.: 32 AF XY: 0.0648 AC XY: 4823 AN XY: 74374

Gnomad4 AFR AF: 0.233

Gnomad4 AMR AF: 0.0313

Gnomad4 ASJ AF: 0.00144

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00125

Gnomad4 FIN AF: 0.0000943

Gnomad4 NFE AF: 0.00101

Gnomad4 OTH AF: 0.0435

Alfa AF: 0.0493 Hom.: 76

Bravo AF: 0.0769

Asia WGS AF: 0.0140 AC: 50 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
CADD	Benign	1.6
DANN	Benign	0.39

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: rs13335146; hg19: chr16-53988493;