chr20-22581872-C-T

Position:

chr20-22581872-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM1PP3BS2

The NM_021784.5(FOXA2):c.1370G>A(p.Arg457Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000809 in 1,607,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

FOXA2
NM_021784.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.09

Variant links:

Genes affected

FOXA2 (HGNC:5022): (forkhead box A2) This gene encodes a member of the forkhead class of DNA-binding proteins. These hepatocyte nuclear factors are transcriptional activators for liver-specific genes such as albumin and transthyretin, and they also interact with chromatin. Similar family members in mice have roles in the regulation of metabolism and in the differentiation of the pancreas and liver. This gene has been linked to sporadic cases of maturity-onset diabetes of the young. Transcript variants encoding different isoforms have been identified for this gene. [provided by RefSeq, Oct 2008]

FOXA2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM1

In a modified_residue Phosphoserine (size 0) in uniprot entity FOXA2_HUMAN

PP3

MetaRNN computational evidence supports a deleterious effect, 0.8

BS2

High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
FOXA2	NM_021784.5 linkuse as main transcript	c.1370G>A	p.Arg457Gln	missense_variant	2/2	ENST00000419308.7	NP_068556.2
FOXA2	NM_153675.3 linkuse as main transcript	c.1352G>A	p.Arg451Gln	missense_variant	3/3		NP_710141.1
FOXA2	XM_047440133.1 linkuse as main transcript	c.1352G>A	p.Arg451Gln	missense_variant	3/3		XP_047296089.1
FOXA2	XM_047440134.1 linkuse as main transcript	c.1262G>A	p.Arg421Gln	missense_variant	2/2		XP_047296090.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FOXA2	ENST00000419308.7 linkuse as main transcript	c.1370G>A	p.Arg457Gln	missense_variant	2/2	1	NM_021784.5	ENSP00000400341	P4	Q9Y261-2
FOXA2	ENST00000377115.4 linkuse as main transcript	c.1352G>A	p.Arg451Gln	missense_variant	3/3	1		ENSP00000366319	A1	Q9Y261-1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00143

GnomAD3 exomes

AF:

0.0000160

AC:

AN:

249552

Hom.:

AF XY:

0.0000222

AC XY:

AN XY:

135296

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000869

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:

0.00000885

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000344

AC:

AN:

1454940

Hom.:

Cov.:

AF XY:

0.00000277

AC XY:

AN XY:

722176

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000449

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:

0.00000181

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74420

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00142

Bravo

AF:

0.0000756

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 08, 2022

ClinVar contains an entry for this variant (Variation ID: 1492754). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with FOXA2-related conditions. This variant is present in population databases (rs534577829, gnomAD 0.009%). This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 457 of the FOXA2 protein (p.Arg457Gln). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.61

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Pathogenic

0.25

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.64

.;D

Eigen

Pathogenic

0.76

Eigen_PC

Pathogenic

0.71

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Pathogenic

0.99

D;D

M_CAP

Pathogenic

0.79

MetaRNN

Pathogenic

0.80

D;D

MetaSVM

Pathogenic

1.0

MutationAssessor

Uncertain

2.6

.;M

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Pathogenic

0.79

PROVEAN

Benign

-2.3

.;N

REVEL

Pathogenic

0.85

Sift

Pathogenic

0.0

.;D

Sift4G

Uncertain

0.056

T;T

Polyphen

1.0

.;D

Vest4

0.90

MutPred

0.66

.;Loss of MoRF binding (P = 0.0763);

MVP

0.96

ClinPred

0.95

GERP RS

4.7

Varity_R

0.56

gMVP

0.58

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