6-50772802-G-A

Position:

• chr6-50772802-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_172238.4(TFAP2D):​c.1297G>A​(p.Ala433Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: TFAP2D NM_172238.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.83

Genes affected

TFAP2D (HGNC:15581): (transcription factor AP-2 delta) Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II transcription regulatory region sequence-specific DNA binding activity. Predicted to be involved in anatomical structure development; regulation of cell population proliferation; and regulation of transcription by RNA polymerase II. Predicted to act upstream of or within inferior colliculus development; negative regulation of neuron apoptotic process; and positive regulation of transcription by RNA polymerase II. Predicted to be part of chromatin. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.035881042).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TFAP2D	NM_172238.4	c.1297G>A	p.Ala433Thr	missense_variant	8/8	ENST00000008391.4	NP_758438.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TFAP2D	ENST00000008391.4	c.1297G>A	p.Ala433Thr	missense_variant	8/8	1	NM_172238.4	ENSP00000008391.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 16, 2024

The c.1297G>A (p.A433T) alteration is located in exon 8 (coding exon 8) of the TFAP2D gene. This alteration results from a G to A substitution at nucleotide position 1297, causing the alanine (A) at amino acid position 433 to be replaced by a threonine (T). 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	0.060
BayesDel_addAF	Benign	-0.059	T
BayesDel_noAF	Benign	-0.32
CADD	Benign	14
DANN	Uncertain	0.98
DEOGEN2	Benign	0.040	T
Eigen	Benign	-0.50
Eigen_PC	Benign	-0.30
FATHMM_MKL	Uncertain	0.80	D
LIST_S2	Benign	0.75	T
M_CAP	Benign	0.024	T
MetaRNN	Benign	0.036	T
MetaSVM	Benign	-0.54	T
MutationAssessor	Benign	-0.69	N
PrimateAI	Benign	0.36	T
PROVEAN	Benign	0.080	N
REVEL	Benign	0.24
Sift	Benign	0.44	T
Sift4G	Benign	0.60	T
Polyphen		0.0	B
Vest4		0.14
MutPred		0.10		Gain of phosphorylation at A433 (P = 0.017);
MVP		0.068
MPC		0.36
ClinPred		0.17	T
GERP RS		2.7
Varity_R		0.035
gMVP		0.15

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-50740515;