chr19-41333726-T-C

Variant names:

• chr19-41333726-T-C
• rs8105161
• NM_000660.7:c.861-1445A>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000660.7(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 NM_000660.7 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.452
• Publications: 11 publications found

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]

TGFB1 Gene-Disease associations (from GenCC):

• Camurati-Engelmann disease

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet, Ambry Genetics, PanelApp Australia
• inflammatory bowel disease, immunodeficiency, and encephalopathy

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
• cystic fibrosis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -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.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000660.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TGFB1	NM_000660.7	MANE Select	c.861-1445A>G		intron	N/A	NP_000651.3	P01137

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TGFB1	ENST00000221930.6	TSL:1 MANE Select	c.861-1445A>G		intron	N/A	ENSP00000221930.4	A0A499FJK2
	TGFB1	ENST00000890114.1		c.864-1445A>G		intron	N/A	ENSP00000560173.1
	TGFB1	ENST00000600196.2	TSL:5	c.713-1445A>G		intron	N/A	ENSP00000504008.1	A0A7I2YQL8

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

African (AFR) AF: 0.260 AC: 10768 AN: 41478

American (AMR) AF: 0.164 AC: 2501 AN: 15272

Ashkenazi Jewish (ASJ) AF: 0.170 AC: 589 AN: 3470

East Asian (EAS) AF: 0.345 AC: 1781 AN: 5162

South Asian (SAS) AF: 0.179 AC: 861 AN: 4818

European-Finnish (FIN) AF: 0.156 AC: 1654 AN: 10592

Middle Eastern (MID) AF: 0.168 AC: 49 AN: 292

European-Non Finnish (NFE) AF: 0.157 AC: 10691 AN: 67974

Other (OTH) AF: 0.189 AC: 399 AN: 2114

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 v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	1.3
DANN	Benign	0.78
PhyloP100		-0.45
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs8105161; hg19: chr19-41839631;