Variant chr2-20667432-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_182828.4(GDF7):c.193G>A(p.Ala65Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000414 in 1,038,736 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

GDF7
NM_182828.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.50

Variant links:

Genes affected

GDF7 (HGNC:4222): (growth differentiation factor 7) 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 each subunit of the disulfide-linked homodimer. This protein may play a role in the differentiation of tendon cells and spinal cord interneurons. A mutation in this gene may be associated with increased risk for Barrett's esophagus and esophageal adenocarcinoma. [provided by RefSeq, Sep 2016]

GDF7 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.250931).

BS2

High AC in GnomAd4 at 29 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GDF7	NM_182828.4 linkuse as main transcript	c.193G>A	p.Ala65Thr	missense_variant	1/2	ENST00000272224.5	NP_878248.2	Q7Z4P5Q75RY1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GDF7	ENST00000272224.5 linkuse as main transcript	c.193G>A	p.Ala65Thr	missense_variant	1/2	1	NM_182828.4	ENSP00000272224.3		Q7Z4P5

Frequencies

GnomAD3 genomes

AF:

0.000198

AC:

AN:

146158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000689

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000494

GnomAD4 exome

AF:

0.0000157

AC:

AN:

892492

Hom.:

Cov.:

AF XY:

0.0000143

AC XY:

AN XY:

419148

show subpopulations

Gnomad4 AFR exome

AF:

0.000756

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000320

GnomAD4 genome

AF:

0.000198

AC:

AN:

146244

Hom.:

Cov.:

AF XY:

0.000183

AC XY:

AN XY:

71226

show subpopulations

Gnomad4 AFR

AF:

0.000688

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000489

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.000196

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 29, 2022

The c.193G>A (p.A65T) alteration is located in exon 1 (coding exon 1) of the GDF7 gene. This alteration results from a G to A substitution at nucleotide position 193, causing the alanine (A) at amino acid position 65 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.090

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.24

Eigen

Benign

-0.56

Eigen_PC

Benign

-0.62

FATHMM_MKL

Benign

0.031

LIST_S2

Benign

0.39

M_CAP

Pathogenic

0.72

MetaRNN

Benign

0.25

MetaSVM

Benign

-0.86

MutationAssessor

Benign

0.81

PrimateAI

Pathogenic

0.83

PROVEAN

Benign

-0.71

REVEL

Benign

0.24

Sift

Uncertain

0.029

Sift4G

Benign

0.081

Polyphen

0.97

Vest4

0.13

MutPred

0.48

Gain of glycosylation at A65 (P = 0.0025);

MVP

0.48

ClinPred

0.38

GERP RS

2.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.0

Varity_R

0.10

gMVP

0.30

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over