14-75978126-T-C

Position:

• chr14-75978126-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_003239.5(TGFB3):​c.352+2416A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.807 in 151,952 control chromosomes in the GnomAD database, including 49,643 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.81 (49643 hom., cov: 30)
• Consequence: TGFB3 NM_003239.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.61

Genes affected

TGFB3 (HGNC:11769): (transforming growth factor beta 3) This gene encodes a secreted ligand of the TGF-beta (transforming growth factor-beta) superfamily of proteins. Ligands of this family bind various TGF-beta receptors leading to recruitment and activation of SMAD family transcription factors that regulate gene expression. The encoded preproprotein is proteolytically processed to generate a latency-associated peptide (LAP) and a mature peptide, and is found in either a latent form composed of a mature peptide homodimer, a LAP homodimer, and a latent TGF-beta binding protein, or in an active form consisting solely of the mature peptide homodimer. The mature peptide may also form heterodimers with other TGF-beta family members. This protein is involved in embryogenesis and cell differentiation, and may play a role in wound healing. Mutations in this gene are a cause of aortic aneurysms and dissections, as well as familial arrhythmogenic right ventricular dysplasia 1. [provided by RefSeq, Aug 2016]

IFT43 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.824 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TGFB3	NM_003239.5	c.352+2416A>G		intron_variant		ENST00000238682.8	NP_003230.1
TGFB3	NM_001329939.2	c.352+2416A>G		intron_variant			NP_001316868.1
TGFB3	NM_001329938.2	c.352+2416A>G		intron_variant			NP_001316867.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TGFB3	ENST00000238682.8	c.352+2416A>G		intron_variant		1	NM_003239.5	ENSP00000238682.3
TGFB3	ENST00000556285.1	c.352+2416A>G		intron_variant		1		ENSP00000451110.1
TGFB3	ENST00000556674.2	c.352+2416A>G		intron_variant		3		ENSP00000502685.1
IFT43	ENST00000555677.5	n.90-10759T>C		intron_variant		4

Frequencies

GnomAD3 genomes AF: 0.807 AC: 122516 AN: 151834 Hom.: 49622 Cov.: 30

Gnomad AFR AF: 0.773

Gnomad AMI AF: 0.898

Gnomad AMR AF: 0.782

Gnomad ASJ AF: 0.856

Gnomad EAS AF: 0.643

Gnomad SAS AF: 0.845

Gnomad FIN AF: 0.865

Gnomad MID AF: 0.794

Gnomad NFE AF: 0.830

Gnomad OTH AF: 0.810

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.807 AC: 122586 AN: 151952 Hom.: 49643 Cov.: 30 AF XY: 0.806 AC XY: 59860 AN XY: 74222

Gnomad4 AFR AF: 0.773

Gnomad4 AMR AF: 0.782

Gnomad4 ASJ AF: 0.856

Gnomad4 EAS AF: 0.644

Gnomad4 SAS AF: 0.844

Gnomad4 FIN AF: 0.865

Gnomad4 NFE AF: 0.830

Gnomad4 OTH AF: 0.806

Alfa AF: 0.829 Hom.: 23649

Bravo AF: 0.802

Asia WGS AF: 0.749 AC: 2604 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	0.046
DANN	Benign	0.58

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

Other links and lift over

dbSNP: rs3917158; hg19: chr14-76444469;