6-84736832-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001080508.3(TBX18):​c.1677G>A​(p.Pro559Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000276 in 1,613,982 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00028 ( 0 hom. )

Consequence

TBX18
NM_001080508.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.287
Variant links:
Genes affected
TBX18 (HGNC:11595): (T-box transcription factor 18) This genes codes for a member of an evolutionarily conserved family of transcription factors that plays a crucial role in embryonic development. The family is characterized by the presence of the DNA-binding T-box domain and is divided into five sub-families based on sequence conservation in this domain. The encoded protein belongs to the vertebrate specific Tbx1 sub-family. The protein acts as a transcriptional repressor by antagonizing transcriptional activators in the T-box family. The protein forms homo- or heterodimers with other transcription factors of the T-box family or other transcription factors. [provided by RefSeq, Nov 2012]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.75).
BP6
Variant 6-84736832-C-T is Benign according to our data. Variant chr6-84736832-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 728287.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.287 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000223 (34/152300) while in subpopulation NFE AF= 0.000382 (26/68026). AF 95% confidence interval is 0.000267. There are 0 homozygotes in gnomad4. There are 16 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 34 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TBX18NM_001080508.3 linkuse as main transcriptc.1677G>A p.Pro559Pro synonymous_variant 8/8 ENST00000369663.10 NP_001073977.1 O95935

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TBX18ENST00000369663.10 linkuse as main transcriptc.1677G>A p.Pro559Pro synonymous_variant 8/81 NM_001080508.3 ENSP00000358677.4 O95935
TBX18ENST00000606784.5 linkuse as main transcriptc.625+1665G>A intron_variant 1 ENSP00000475873.1 U3KQH2

Frequencies

GnomAD3 genomes
AF:
0.000223
AC:
34
AN:
152182
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00110
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000943
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000382
Gnomad OTH
AF:
0.000958
GnomAD3 exomes
AF:
0.000207
AC:
52
AN:
250700
Hom.:
0
AF XY:
0.000214
AC XY:
29
AN XY:
135462
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.0000925
Gnomad NFE exome
AF:
0.000371
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000282
AC:
412
AN:
1461682
Hom.:
0
Cov.:
31
AF XY:
0.000289
AC XY:
210
AN XY:
727112
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.000281
Gnomad4 NFE exome
AF:
0.000304
Gnomad4 OTH exome
AF:
0.000431
GnomAD4 genome
AF:
0.000223
AC:
34
AN:
152300
Hom.:
0
Cov.:
32
AF XY:
0.000215
AC XY:
16
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000943
Gnomad4 NFE
AF:
0.000382
Gnomad4 OTH
AF:
0.000948
Alfa
AF:
0.000229
Hom.:
0
Bravo
AF:
0.000242
EpiCase
AF:
0.000164
EpiControl
AF:
0.000534

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 11, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.75
CADD
Benign
6.7
DANN
Benign
0.47

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.

Other links and lift over

dbSNP: rs141651641; hg19: chr6-85446550; API