Variant 4-69480836-A-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_021139.3(UGT2B4):c.1385T>A(p.Phe462Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. F462L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

UGT2B4
NM_021139.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.03

Variant links:

Genes affected

UGT2B4 (HGNC:12553): (UDP glucuronosyltransferase family 2 member B4) Enables glucuronosyltransferase activity. Involved in cellular glucuronidation and estrogen metabolic process. Predicted to be located in endoplasmic reticulum membrane. Predicted to be integral component of membrane. Predicted to be active in intracellular membrane-bounded organelle. [provided by Alliance of Genome Resources, Apr 2022]

UGT2B4 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
UGT2B4	NM_021139.3 linkuse as main transcript	c.1385T>A	p.Phe462Tyr	missense_variant	6/6	ENST00000305107.7
UGT2B4	NM_001297616.2 linkuse as main transcript	c.977T>A	p.Phe326Tyr	missense_variant	7/7
UGT2B4	NM_001297615.2 linkuse as main transcript	c.*55T>A		3_prime_UTR_variant	5/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
UGT2B4	ENST00000305107.7 linkuse as main transcript	c.1385T>A	p.Phe462Tyr	missense_variant	6/6	1	NM_021139.3	P1	P06133-1
UGT2B4	ENST00000512583.5 linkuse as main transcript	c.*55T>A		3_prime_UTR_variant	5/5	1			P06133-3
UGT2B4	ENST00000506580.5 linkuse as main transcript	n.947T>A		non_coding_transcript_exon_variant	5/5	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251148

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135728

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

6.84e-7

AC:

AN:

1461652

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727140

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 04, 2023

The c.1385T>A (p.F462Y) alteration is located in exon 6 (coding exon 6) of the UGT2B4 gene. This alteration results from a T to A substitution at nucleotide position 1385, causing the phenylalanine (F) at amino acid position 462 to be replaced by a tyrosine (Y). 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

0.17

BayesDel_addAF

Benign

-0.0036

BayesDel_noAF

Benign

-0.24

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.31

Eigen

Uncertain

0.20

Eigen_PC

Benign

0.084

FATHMM_MKL

Uncertain

0.77

LIST_S2

Uncertain

0.90

M_CAP

Benign

0.015

MetaRNN

Uncertain

0.56

MetaSVM

Benign

-0.65

MutationAssessor

Uncertain

2.8

MutationTaster

Benign

1.0

D;N;N

PrimateAI

Uncertain

0.58

PROVEAN

Uncertain

-2.7

REVEL

Uncertain

0.52

Sift

Benign

0.078

Sift4G

Uncertain

0.045

Polyphen

0.92

Vest4

0.32

MutPred

0.74

Gain of phosphorylation at F462 (P = 0.0626);

MVP

0.39

MPC

0.082

ClinPred

0.97

GERP RS

2.1

Varity_R

0.41

gMVP

0.22

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