chr6-10410071-C-CCTGGCT

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PM4

The NM_001372066.1(TFAP2A):​c.315_316insAGCCAG​(p.Ser104_Gln105dup) variant causes a inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,700 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TFAP2A
NM_001372066.1 inframe_insertion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.40
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-AS1 (HGNC:40579): (TFAP2A antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM4
Nonframeshift variant in NON repetitive region in NM_001372066.1.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TFAP2ANM_001372066.1 linkuse as main transcriptc.315_316insAGCCAG p.Ser104_Gln105dup inframe_insertion 2/7 ENST00000379613.10 NP_001358995.1
TFAP2ANM_001032280.3 linkuse as main transcriptc.291_292insAGCCAG p.Ser96_Gln97dup inframe_insertion 2/7 NP_001027451.1
TFAP2ANM_001042425.3 linkuse as main transcriptc.297_298insAGCCAG p.Ser98_Gln99dup inframe_insertion 2/7 NP_001035890.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TFAP2AENST00000379613.10 linkuse as main transcriptc.315_316insAGCCAG p.Ser104_Gln105dup inframe_insertion 2/71 NM_001372066.1 ENSP00000368933 A1
TFAP2A-AS1ENST00000420777.1 linkuse as main transcriptn.58+678_58+683dup intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460700
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
726720
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.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJan 30, 2020Not observed in large population cohorts (Lek et al., 2016); In-frame duplication of 2 amino acids in a non-repeat region; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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: chr6-10410304; API