19-48704181-T-G

Position:

• chr19-48704181-T-G

Variant summary

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

The NM_000511.6(FUT2):​c.*193T>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.999 in 152,040 control chromosomes in the GnomAD database, including 75,838 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 1.0 (75838 hom., cov: 30)
  • Exomes 𝑓: 1.0 (257352 hom.)
  • Failed GnomAD Quality Control
• Consequence: FUT2 NM_000511.6 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.13

Genes affected

FUT2 (HGNC:4013): (fucosyltransferase 2 (H blood group)) This gene is one of two encoding the galactoside 2-L-fucosyltransferase enzyme. The encoded protein is important for the final step in the soluble ABO blood group antigen synthesis pathway. It is also involved in cell-cell interaction, cell surface expression, and cell proliferation. Mutations in this gene are a cause of the H-Bombay blood group where red blood cells lack the H antigen. [provided by RefSeq, May 2022]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.99).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.994 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FUT2	NM_000511.6	c.*193T>G		3_prime_UTR_variant	2/2	ENST00000425340.3
FUT2	NM_001097638.3	c.*193T>G		3_prime_UTR_variant	2/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FUT2	ENST00000425340.3	c.*193T>G		3_prime_UTR_variant	2/2	1	NM_000511.6	P1
FUT2	ENST00000522966.2	c.*193T>G		3_prime_UTR_variant	2/2	2		P1

Frequencies

GnomAD3 genomes AF: 0.999 AC: 151735 AN: 151924 Hom.: 75779 Cov.: 30

Gnomad AFR AF: 1.00

Gnomad AMI AF: 1.00

Gnomad AMR AF: 0.999

Gnomad ASJ AF: 1.00

Gnomad EAS AF: 0.970

Gnomad SAS AF: 0.999

Gnomad FIN AF: 1.00

Gnomad MID AF: 1.00

Gnomad NFE AF: 1.00

Gnomad OTH AF: 0.999

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.999 AC: 515266 AN: 515856 Hom.: 257352 Cov.: 5 AF XY: 0.999 AC XY: 272457 AN XY: 272742

Gnomad4 AFR exome AF: 1.00

Gnomad4 AMR exome AF: 1.00

Gnomad4 ASJ exome AF: 1.00

Gnomad4 EAS exome AF: 0.985

Gnomad4 SAS exome AF: 1.00

Gnomad4 FIN exome AF: 1.00

Gnomad4 NFE exome AF: 1.00

Gnomad4 OTH exome AF: 0.996

GnomAD4 genome AF: 0.999 AC: 151852 AN: 152040 Hom.: 75838 Cov.: 30 AF XY: 0.999 AC XY: 74208 AN XY: 74300

Gnomad4 AFR AF: 1.00

Gnomad4 AMR AF: 0.999

Gnomad4 ASJ AF: 1.00

Gnomad4 EAS AF: 0.970

Gnomad4 SAS AF: 0.999

Gnomad4 FIN AF: 1.00

Gnomad4 NFE AF: 1.00

Gnomad4 OTH AF: 0.999

Alfa AF: 1.00 Hom.: 9252

Bravo AF: 0.999

Asia WGS AF: 0.989 AC: 3377 AN: 3414

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.99
CADD	Benign	1.1
DANN	Benign	0.51

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: rs281376; hg19: chr19-49207438;