chr6-50823403-C-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_003221.4(TFAP2B):​c.82-4C>A variant causes a splice region, splice polypyrimidine tract, intron 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. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 31)

Consequence

TFAP2B
NM_003221.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.007006
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0430
Variant links:
Genes affected
TFAP2B (HGNC:11743): (transcription factor AP-2 beta) This gene encodes a member of the AP-2 family of transcription factors. AP-2 proteins form homo- or hetero-dimers with other AP-2 family members and bind specific DNA sequences. They are thought to stimulate cell proliferation and suppress terminal differentiation of specific cell types during embryonic development. Specific AP-2 family members differ in their expression patterns and binding affinity for different promoters. This protein functions as both a transcriptional activator and repressor. Mutations in this gene result in autosomal dominant Char syndrome, suggesting that this gene functions in the differentiation of neural crest cell derivatives. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

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 (BayesDel_noAF=-0.37).
BP6
Variant 6-50823403-C-A is Benign according to our data. Variant chr6-50823403-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 746541.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TFAP2BNM_003221.4 linkuse as main transcriptc.82-4C>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000393655.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TFAP2BENST00000393655.4 linkuse as main transcriptc.82-4C>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_003221.4 P1Q92481-1
TFAP2BENST00000344788.7 linkuse as main transcriptc.76-4C>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 3
TFAP2BENST00000489228.1 linkuse as main transcriptn.377-4C>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
Cov.:
33
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeMar 30, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.37
CADD
Benign
15
DANN
Benign
0.83

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0070
dbscSNV1_RF
Benign
0.054
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.

Other links and lift over

dbSNP: rs1581809085; hg19: chr6-50791116; API