chr10-47322702-C-G

Variant names:

• chr10-47322702-C-G
• rs61758973
• NM_016204.4:c.34C>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_016204.4(GDF2):​c.34C>G​(p.Leu12Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000209 in 1,435,052 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 8/10 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. L12L) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: GDF2 NM_016204.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.162
• Publications: 1 publications found

Genes affected

GDF2 (HGNC:4217): (growth differentiation factor 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 each subunit of the disulfide-linked homodimer. This protein regulates cartilage and bone development, angiogenesis and differentiation of cholinergic central nervous system neurons. Mutations in this gene are associated with hereditary hemorrhagic telangiectasia. [provided by RefSeq, Jul 2016]

GDF2 Gene-Disease associations (from GenCC):

• pulmonary arterial hypertension

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• telangiectasia, hereditary hemorrhagic, type 1

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• telangiectasia, hereditary hemorrhagic, type 5

  Inheritance: AD, Unknown, AR Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P, ClinGen
• hereditary hemorrhagic telangiectasia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.067224175).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016204.4. 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
	GDF2	NM_016204.4	MANE Select	c.34C>G	p.Leu12Val	missense	Exon 1 of 2	NP_057288.1	Q9UK05

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GDF2	ENST00000581492.3	TSL:1 MANE Select	c.34C>G	p.Leu12Val	missense	Exon 1 of 2	ENSP00000463051.1	Q9UK05

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000209 AC: 3 AN: 1435052 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 709614

African (AFR) AF: 0.00 AC: 0 AN: 32912

American (AMR) AF: 0.00 AC: 0 AN: 43326

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25104

East Asian (EAS) AF: 0.00 AC: 0 AN: 38846

South Asian (SAS) AF: 0.00 AC: 0 AN: 83492

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51502

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5678

European-Non Finnish (NFE) AF: 0.00000274 AC: 3 AN: 1095076

Other (OTH) AF: 0.00 AC: 0 AN: 59116

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Telangiectasia, hereditary hemorrhagic, type 5 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.059
BayesDel_noAF	Benign	-0.95
CADD	Benign	0.26
DANN	Benign	0.68
DEOGEN2	Benign	0.26	T
LIST_S2	Benign	0.41	T
MetaRNN	Benign	0.067	T
PhyloP100		-0.16
Sift4G	Benign	1.0	T
Vest4		0.095
PromoterAI		-0.0012	Neutral
gMVP		0.50

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: rs61758973; hg19: chr10-48416660;