chr20-22581995-T-G

Position:

chr20-22581995-T-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_021784.5(FOXA2):c.1247A>C(p.His416Pro) variant causes a missense change. The variant allele was found at a frequency of 0.0000211 in 1,614,186 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

FOXA2
NM_021784.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.11

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 -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.1477747).

BS2

High AC in GnomAd4 at 16 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
FOXA2	NM_021784.5 linkuse as main transcript	c.1247A>C	p.His416Pro	missense_variant	2/2	ENST00000419308.7	NP_068556.2
FOXA2	NM_153675.3 linkuse as main transcript	c.1229A>C	p.His410Pro	missense_variant	3/3		NP_710141.1
FOXA2	XM_047440133.1 linkuse as main transcript	c.1229A>C	p.His410Pro	missense_variant	3/3		XP_047296089.1
FOXA2	XM_047440134.1 linkuse as main transcript	c.1139A>C	p.His380Pro	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.1247A>C	p.His416Pro	missense_variant	2/2	1	NM_021784.5	ENSP00000400341	P4	Q9Y261-2
FOXA2	ENST00000377115.4 linkuse as main transcript	c.1229A>C	p.His410Pro	missense_variant	3/3	1		ENSP00000366319	A1	Q9Y261-1

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

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:

0.00

GnomAD3 exomes

AF:

0.0000477

AC:

AN:

251334

Hom.:

AF XY:

0.0000515

AC XY:

AN XY:

135840

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000347

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000123

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000380

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:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.000105

AC:

AN:

152302

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00105

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:

0.00

Bravo

AF:

0.000170

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 21, 2021

The c.1247A>C (p.H416P) alteration is located in exon 2 (coding exon 2) of the FOXA2 gene. This alteration results from a A to C substitution at nucleotide position 1247, causing the histidine (H) at amino acid position 416 to be replaced by a proline (P). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 22, 2024

This sequence change replaces histidine, which is basic and polar, with proline, which is neutral and non-polar, at codon 416 of the FOXA2 protein (p.His416Pro). This variant is present in population databases (rs186945948, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with FOXA2-related conditions. ClinVar contains an entry for this variant (Variation ID: 2299558). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.43

.;T

Eigen

Benign

-0.043

Eigen_PC

Benign

0.078

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.78

T;T

M_CAP

Benign

0.049

MetaRNN

Benign

0.15

T;T

MetaSVM

Benign

-0.93

MutationAssessor

Uncertain

2.2

.;M

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-2.4

.;N

REVEL

Benign

0.18

Sift

Benign

0.066

.;T

Sift4G

Benign

0.28

T;T

Polyphen

0.012

.;B

Vest4

0.44

MVP

0.57

ClinPred

0.19

GERP RS

4.2

Varity_R

0.42

gMVP

0.68

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