Variant 6-169223271-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_003247.5(THBS2):c.2978A>G(p.Asn993Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,500 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

THBS2
NM_003247.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.43

Variant links:

Genes affected

THBS2 (HGNC:11786): (thrombospondin 2) The protein encoded by this gene belongs to the thrombospondin family. It is a disulfide-linked homotrimeric glycoprotein that mediates cell-to-cell and cell-to-matrix interactions. This protein has been shown to function as a potent inhibitor of tumor growth and angiogenesis. Studies of the mouse counterpart suggest that this protein may modulate the cell surface properties of mesenchymal cells and be involved in cell adhesion and migration. [provided by RefSeq, Jul 2008]

THBS2 links:

THBS2-AS1 (HGNC:56059): (THBS2 antisense RNA 1)

THBS2-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.896

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
THBS2	NM_003247.5 linkuse as main transcript	c.2978A>G	p.Asn993Ser	missense_variant	18/22	ENST00000617924.6
THBS2-AS1	NR_134621.1 linkuse as main transcript	n.681+8784T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
THBS2	ENST00000617924.6 linkuse as main transcript	c.2978A>G	p.Asn993Ser	missense_variant	18/22	1	NM_003247.5	P4
THBS2-AS1	ENST00000660724.1 linkuse as main transcript	n.639+8784T>C		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461500

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726952

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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

Apr 12, 2023

The c.2978A>G (p.N993S) alteration is located in exon 19 (coding exon 17) of the THBS2 gene. This alteration results from a A to G substitution at nucleotide position 2978, causing the asparagine (N) at amino acid position 993 to be replaced by a serine (S). 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

Pathogenic

0.83

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

-0.060

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.77

D;.;D

Eigen

Pathogenic

0.71

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Uncertain

0.91

LIST_S2

Pathogenic

1.0

.;D;D

M_CAP

Uncertain

0.24

MetaRNN

Pathogenic

0.90

D;D;D

MetaSVM

Pathogenic

0.96

MutationAssessor

Pathogenic

3.1

M;.;M

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.74

PROVEAN

Pathogenic

-4.7

D;.;.

REVEL

Pathogenic

0.78

Sift

Pathogenic

0.0

D;.;.

Sift4G

Uncertain

0.054

T;.;T

Polyphen

1.0

D;.;D

Vest4

0.83

MutPred

0.75

Gain of disorder (P = 0.055);.;Gain of disorder (P = 0.055);

MVP

0.97

MPC

1.3

ClinPred

0.99

GERP RS

4.7

Varity_R

0.84

gMVP

0.71

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over