chr6-10404734-C-T

Variant names:

Variant summary

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

The NM_001372066.1(TFAP2A):c.544G>A(p.Val182Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,742 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TFAP2A
NM_001372066.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 2.32

Variant links:

Genes affected

TFAP2A (HGNC:11742): (transcription factor AP-2 alpha) The protein encoded by this gene is a transcription factor that binds the consensus sequence 5'-GCCNNNGGC-3'. The encoded protein functions as either a homodimer or as a heterodimer with similar family members. This protein activates the transcription of some genes while inhibiting the transcription of others. Defects in this gene are a cause of branchiooculofacial syndrome (BOFS). Three transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Dec 2009]

TFAP2A links:

TFAP2A-AS2 (HGNC:52289): (TFAP2A antisense RNA 2) The product of this intronless gene is a capped lncRNA that is nuclear-enriched and associated with chromatin. The encoded transcript may be involved in the regulation of developmental gene expression in a context-dependent manner, functioning as a repressor in non-pluripotent cells and an activator in pluripotent cells. Transcription of this gene is activated in 8-cell human embryos during the major wave of zygotic genome activation, independently of and prior to the activation of TFAP2A, an overlapping gene found on the opposite strand. Expression of this gene is characterized by high cell-to-cell variability in the cells of totipotent human embryos and in stable cell lines. [provided by RefSeq, Mar 2017]

TFAP2A-AS2 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 rank	MANE	Protein	UniProt
TFAP2A	NM_001372066.1 link	c.544G>A	p.Val182Met	missense_variant	Exon 4 of 7	ENST00000379613.10	NP_001358995.1
TFAP2A	NM_001042425.3 link	c.526G>A	p.Val176Met	missense_variant	Exon 4 of 7		NP_001035890.1	P05549-6
TFAP2A	NM_001032280.3 link	c.520G>A	p.Val174Met	missense_variant	Exon 4 of 7		NP_001027451.1	P05549-5
TFAP2A-AS2	NR_145448.1 link	n.233C>T		non_coding_transcript_exon_variant	Exon 1 of 1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TFAP2A	ENST00000379613.10 link	c.544G>A	p.Val182Met	missense_variant	Exon 4 of 7	1	NM_001372066.1	ENSP00000368933.5		A0A6E1XE14

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000399

AC:

AN:

250904

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135750

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:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461742

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727182

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.:

Bravo

AF:

0.00000756

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:3

Feb 14, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant has not been reported in the literature in individuals affected with TFAP2A-related conditions. 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: "Benign"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 445515). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This sequence change replaces valine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 180 of the TFAP2A protein (p.Val180Met). -

Aug 02, 2017

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

May 13, 2019

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Pathogenic

0.25

BayesDel_noAF

Uncertain

0.12

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.43

.;.;.;T;T;T

Eigen

Uncertain

0.45

Eigen_PC

Uncertain

0.50

FATHMM_MKL

Uncertain

0.81

LIST_S2

Uncertain

0.86

D;.;D;D;D;.

M_CAP

Pathogenic

0.66

MetaRNN

Uncertain

0.51

D;D;D;D;D;D

MetaSVM

Pathogenic

1.0

MutationAssessor

Benign

0.64

.;.;.;N;.;.

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-1.3

N;N;N;N;N;N

REVEL

Uncertain

0.54

Sift

Benign

0.054

T;T;D;T;D;T

Sift4G

Benign

0.097

T;T;T;T;T;T

Polyphen

0.99

.;.;.;D;D;.

Vest4

0.53

MutPred

0.21

.;.;.;Loss of ubiquitination at K176 (P = 0.0583);Loss of ubiquitination at K176 (P = 0.0583);.;

MVP

0.85

ClinPred

0.75

GERP RS

5.5

Varity_R

0.26

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