chr19-41333726-T-C

Position:

• chr19-41333726-T-C

Variant summary

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

The ENST00000221930.6(TGFB1):​c.861-1445A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.195 in 152,080 control chromosomes in the GnomAD database, including 3,225 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 0.20 (3225 hom., cov: 31)
• Consequence: TGFB1 ENST00000221930.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.452

Genes affected

TGFB1 (HGNC:11766): (transforming growth factor beta 1) 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 TGFB family members. This encoded protein regulates cell proliferation, differentiation and growth, and can modulate expression and activation of other growth factors including interferon gamma and tumor necrosis factor alpha. This gene is frequently upregulated in tumor cells, and mutations in this gene result in Camurati-Engelmann disease. [provided by RefSeq, Aug 2016]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.332 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TGFB1	NM_000660.7	c.861-1445A>G		intron_variant		ENST00000221930.6	NP_000651.3
TGFB1	XM_011527242.3	c.864-1445A>G		intron_variant			XP_011525544.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TGFB1	ENST00000221930.6	c.861-1445A>G		intron_variant		1	NM_000660.7	ENSP00000221930	P1
TGFB1	ENST00000600196.2	c.713-1445A>G		intron_variant		5		ENSP00000504008
TGFB1	ENST00000677934.1	c.635-1445A>G		intron_variant				ENSP00000504769
TGFB1	ENST00000598758.5	n.149-1445A>G		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes AF: 0.195 AC: 29621 AN: 151962 Hom.: 3214 Cov.: 31

Gnomad AFR AF: 0.259

Gnomad AMI AF: 0.400

Gnomad AMR AF: 0.164

Gnomad ASJ AF: 0.170

Gnomad EAS AF: 0.345

Gnomad SAS AF: 0.179

Gnomad FIN AF: 0.156

Gnomad MID AF: 0.182

Gnomad NFE AF: 0.157

Gnomad OTH AF: 0.190

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

GnomAD4 genome AF: 0.195 AC: 29656 AN: 152080 Hom.: 3225 Cov.: 31 AF XY: 0.195 AC XY: 14472 AN XY: 74362

Gnomad4 AFR AF: 0.260

Gnomad4 AMR AF: 0.164

Gnomad4 ASJ AF: 0.170

Gnomad4 EAS AF: 0.345

Gnomad4 SAS AF: 0.179

Gnomad4 FIN AF: 0.156

Gnomad4 NFE AF: 0.157

Gnomad4 OTH AF: 0.189

Alfa AF: 0.178 Hom.: 417

Bravo AF: 0.202

Asia WGS AF: 0.292 AC: 1015 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	1.3
DANN	Benign	0.78

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: rs8105161; hg19: chr19-41839631;