Genetic Variant FUT2:p.Arg138His (chr19-48703369-G-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_000511.6(FUT2):c.413G>A(p.Arg138His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,460,860 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 1 hom. )

Consequence

FUT2
NM_000511.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.09

Variant links:

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]

FUT2 links:

LOC105447645 (HGNC:):

LOC105447645 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.39979285).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FUT2	NM_000511.6 link	c.413G>A	p.Arg138His	missense_variant	Exon 2 of 2	ENST00000425340.3	NP_000502.4	Q10981A8K2L2
FUT2	NM_001097638.3 link	c.413G>A	p.Arg138His	missense_variant	Exon 2 of 2		NP_001091107.1	Q10981A8K2L2
LOC105447645	NR_131188.1 link	n.480C>T		non_coding_transcript_exon_variant	Exon 1 of 1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FUT2	ENST00000425340.3 link	c.413G>A	p.Arg138His	missense_variant	Exon 2 of 2	1	NM_000511.6	ENSP00000387498.2		Q10981
FUT2	ENST00000522966.2 link	c.413G>A	p.Arg138His	missense_variant	Exon 2 of 2	2		ENSP00000430227.2		Q10981

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000160

AC:

AN:

250482

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135638

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000658

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1460860

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726694

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000233

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 16, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.413G>A (p.R138H) alteration is located in exon 2 (coding exon 1) of the FUT2 gene. This alteration results from a G to A substitution at nucleotide position 413, causing the arginine (R) at amino acid position 138 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

Benign

0.096

BayesDel_addAF

Uncertain

0.16

BayesDel_noAF

Pathogenic

0.17

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.073

.;T;T

Eigen

Benign

0.049

Eigen_PC

Benign

0.029

FATHMM_MKL

Benign

0.63

LIST_S2

Benign

0.41

.;.;T

M_CAP

Uncertain

0.14

MetaRNN

Benign

0.40

T;T;T

MetaSVM

Uncertain

0.60

MutationAssessor

Pathogenic

3.0

.;M;M

PrimateAI

Benign

0.37

PROVEAN

Uncertain

-2.7

D;D;D

REVEL

Uncertain

0.61

Sift

Benign

0.058

T;D;D

Sift4G

Uncertain

0.056

T;T;T

Polyphen

0.56

.;P;P

Vest4

0.31, 0.41

MutPred

0.29

Gain of disorder (P = 0.0624);Gain of disorder (P = 0.0624);Gain of disorder (P = 0.0624);

MVP

0.94

MPC

0.34

ClinPred

0.41

GERP RS

3.7

Varity_R

0.15

gMVP

0.38

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over