rs13216733

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 1P and 7B. PP2BP4_ModerateBS1_SupportingBS2

The NM_003221.4(TFAP2B):​c.444C>A​(p.Asp148Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000257 in 1,598,342 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as not provided (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

TFAP2B
NM_003221.4 missense

Scores

4
15

Clinical Significance

not provided no classification provided O:1

Conservation

PhyloP100: 0.177

Publications

0 publications found
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]
TFAP2B Gene-Disease associations (from GenCC):
  • Char syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet
  • familial patent arterial duct
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 8 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Gene score misZ: 1.2875 (below the threshold of 3.09). Trascript score misZ: 1.6268 (below the threshold of 3.09). GenCC associations: The gene is linked to familial patent arterial duct, Char syndrome.
BP4
Computational evidence support a benign effect (MetaRNN=0.12657467).
BS1
Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.000027 (39/1446118) while in subpopulation SAS AF = 0.0000831 (7/84202). AF 95% confidence interval is 0.0000385. There are 0 homozygotes in GnomAdExome4. There are 25 alleles in the male GnomAdExome4 subpopulation. Median coverage is 34. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High AC in GnomAdExome4 at 39 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TFAP2BNM_003221.4 linkc.444C>A p.Asp148Glu missense_variant Exon 2 of 7 ENST00000393655.4 NP_003212.2 Q92481-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TFAP2BENST00000393655.4 linkc.444C>A p.Asp148Glu missense_variant Exon 2 of 7 1 NM_003221.4 ENSP00000377265.2 Q92481-1
TFAP2BENST00000344788.7 linkc.438C>A p.Asp146Glu missense_variant Exon 3 of 4 3 ENSP00000342252.3 X6R4Y8
TFAP2BENST00000489228.1 linkn.739C>A non_coding_transcript_exon_variant Exon 2 of 2 2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152224
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000190
AC:
4
AN:
210786
AF XY:
0.0000174
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000110
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000270
AC:
39
AN:
1446118
Hom.:
0
Cov.:
34
AF XY:
0.0000348
AC XY:
25
AN XY:
717912
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33138
American (AMR)
AF:
0.00
AC:
0
AN:
42464
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25794
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38938
South Asian (SAS)
AF:
0.0000831
AC:
7
AN:
84202
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51722
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5750
European-Non Finnish (NFE)
AF:
0.0000290
AC:
32
AN:
1104370
Other (OTH)
AF:
0.00
AC:
0
AN:
59740
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152224
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74374
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41462
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68046
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000828
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.00000830
AC:
1

ClinVar

Significance: not provided
Submissions summary: Other:1
Revision: no classification provided
LINK: link

Submissions by phenotype

Char syndrome Other:1
-
GeneReviews
Significance:not provided
Review Status:no classification provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.29
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.35
.;T
Eigen
Benign
-0.40
Eigen_PC
Benign
-0.19
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.87
D;D
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.13
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.1
.;L
PhyloP100
0.18
PrimateAI
Uncertain
0.76
T
PROVEAN
Benign
-1.2
N;N
REVEL
Benign
0.097
Sift
Benign
0.56
T;T
Sift4G
Benign
0.42
T;T
Polyphen
0.0020
.;B
Vest4
0.36
MutPred
0.33
.;Gain of helix (P = 0.062);
MVP
0.42
MPC
0.77
ClinPred
0.23
T
GERP RS
3.5
Varity_R
0.14
gMVP
0.43
Mutation Taster
=68/32
polymorphism

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

Other links and lift over

dbSNP: rs13216733; hg19: chr6-50791482; API