rs138514914

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_003238.6(TGFB2):​c.357G>A​(p.Pro119Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00054 in 1,582,866 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00055 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00054 ( 7 hom. )

Consequence

TGFB2
NM_003238.6 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 0.0260
Variant links:
Genes affected
TGFB2 (HGNC:11768): (transforming growth factor beta 2) 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. Disruption of the TGF-beta/SMAD pathway has been implicated in a variety of human cancers. A chromosomal translocation that includes this gene is associated with Peters' anomaly, a congenital defect of the anterior chamber of the eye. Mutations in this gene may be associated with Loeys-Dietz syndrome. This gene encodes multiple isoforms that may undergo similar proteolytic processing. [provided by RefSeq, Aug 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.43).
BP6
Variant 1-218405179-G-A is Benign according to our data. Variant chr1-218405179-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 213836.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.026 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000546 (83/151960) while in subpopulation SAS AF= 0.00104 (5/4824). AF 95% confidence interval is 0.000408. There are 0 homozygotes in gnomad4. There are 38 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 83 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TGFB2NM_003238.6 linkc.357G>A p.Pro119Pro synonymous_variant Exon 2 of 7 ENST00000366930.9 NP_003229.1 P61812-1Q59EG9
TGFB2NM_001135599.4 linkc.441G>A p.Pro147Pro synonymous_variant Exon 3 of 8 NP_001129071.1 P61812-2Q59EG9
TGFB2NR_138148.2 linkn.1723G>A non_coding_transcript_exon_variant Exon 2 of 7
TGFB2NR_138149.2 linkn.1807G>A non_coding_transcript_exon_variant Exon 3 of 8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TGFB2ENST00000366930.9 linkc.357G>A p.Pro119Pro synonymous_variant Exon 2 of 7 1 NM_003238.6 ENSP00000355897.4 P61812-1
TGFB2ENST00000366929.4 linkc.441G>A p.Pro147Pro synonymous_variant Exon 3 of 8 1 ENSP00000355896.4 P61812-2
TGFB2ENST00000488793.1 linkn.21G>A non_coding_transcript_exon_variant Exon 2 of 3 3

Frequencies

GnomAD3 genomes
AF:
0.000546
AC:
83
AN:
151960
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000484
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
Gnomad ASJ
AF:
0.0158
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00104
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000265
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000945
AC:
226
AN:
239280
Hom.:
1
AF XY:
0.00102
AC XY:
132
AN XY:
129330
show subpopulations
Gnomad AFR exome
AF:
0.0000622
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.0171
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00125
Gnomad FIN exome
AF:
0.0000476
Gnomad NFE exome
AF:
0.000310
Gnomad OTH exome
AF:
0.000525
GnomAD4 exome
AF:
0.000539
AC:
771
AN:
1430906
Hom.:
7
Cov.:
30
AF XY:
0.000620
AC XY:
438
AN XY:
706956
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000239
Gnomad4 ASJ exome
AF:
0.0170
Gnomad4 EAS exome
AF:
0.0000256
Gnomad4 SAS exome
AF:
0.00143
Gnomad4 FIN exome
AF:
0.0000568
Gnomad4 NFE exome
AF:
0.000125
Gnomad4 OTH exome
AF:
0.00143
GnomAD4 genome
AF:
0.000546
AC:
83
AN:
151960
Hom.:
0
Cov.:
32
AF XY:
0.000512
AC XY:
38
AN XY:
74194
show subpopulations
Gnomad4 AFR
AF:
0.0000484
Gnomad4 AMR
AF:
0.0000656
Gnomad4 ASJ
AF:
0.0158
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00104
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000265
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.00135
Hom.:
1
Bravo
AF:
0.000574
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Loeys-Dietz syndrome 4 Benign:4
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Jan 22, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 27, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 15, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:2
Mar 02, 2015
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Aug 28, 2021
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Familial thoracic aortic aneurysm and aortic dissection Benign:1
Mar 16, 2015
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Ehlers-Danlos syndrome Benign:1
Dec 08, 2021
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:1
Nov 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

TGFB2: BP4, BP7 -

Connective tissue disorder Benign:1
Jun 01, 2018
Center for Human Genetics, Inc, Center for Human Genetics, Inc
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.43
CADD
Benign
14
DANN
Benign
0.64

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs138514914; hg19: chr1-218578521; COSMIC: COSV100860490; API