Genetic Variant THBS1:p.Arg517His (chr15-39588604-G-A) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_003246.4(THBS1):c.1550G>A(p.Arg517His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000161 in 1,610,688 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: 𝑓 0.00016 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

THBS1
NM_003246.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 10.0

Variant links:

Genes affected

THBS1 (HGNC:11785): (thrombospondin 1) The protein encoded by this gene is a subunit of a disulfide-linked homotrimeric protein. This protein is an adhesive glycoprotein that mediates cell-to-cell and cell-to-matrix interactions. This protein can bind to fibrinogen, fibronectin, laminin, type V collagen and integrins alpha-V/beta-1. This protein has been shown to play roles in platelet aggregation, angiogenesis, and tumorigenesis. [provided by RefSeq, Jul 2008]

THBS1 links:

THBS1-AS1 (HGNC:55224): (THBS1 antisense RNA 1)

THBS1-AS1 links:

FSIP1 (HGNC:21674): (fibrous sheath interacting protein 1)

FSIP1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.746

BS2

High AC in GnomAd4 at 25 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
THBS1	NM_003246.4 link	c.1550G>A	p.Arg517His	missense_variant	Exon 10 of 22	ENST00000260356.6	NP_003237.2	P07996-1
THBS1	XM_047432980.1 link	c.1550G>A	p.Arg517His	missense_variant	Exon 10 of 22		XP_047288936.1
THBS1	XM_011521971.3 link	c.1472-355G>A		intron_variant	Intron 9 of 20		XP_011520273.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
THBS1	ENST00000260356.6 link	c.1550G>A	p.Arg517His	missense_variant	Exon 10 of 22	1	NM_003246.4	ENSP00000260356.5		P07996-1

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152126

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000386

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000338

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000202

AC:

AN:

247916

Hom.:

AF XY:

0.000224

AC XY:

AN XY:

133954

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000294

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000717

Gnomad SAS exome

AF:

0.0000336

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000302

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.000160

AC:

234

AN:

1458562

Hom.:

Cov.:

AF XY:

0.000170

AC XY:

123

AN XY:

725476

show subpopulations

Gnomad4 AFR exome

AF:

0.0000603

Gnomad4 AMR exome

AF:

0.0000227

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000302

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.0000375

Gnomad4 NFE exome

AF:

0.000188

Gnomad4 OTH exome

AF:

0.0000996

GnomAD4 genome

AF:

0.000164

AC:

AN:

152126

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74302

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000386

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000338

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000271

Hom.:

Bravo

AF:

0.000136

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000231

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 06, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1550G>A (p.R517H) alteration is located in exon 10 (coding exon 9) of the THBS1 gene. This alteration results from a G to A substitution at nucleotide position 1550, causing the arginine (R) at amino acid position 517 to be replaced by a histidine (H). 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

0.094

BayesDel_addAF

Uncertain

0.043

BayesDel_noAF

Pathogenic

0.20

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.47

Eigen

Pathogenic

1.2

Eigen_PC

Pathogenic

1.1

FATHMM_MKL

Uncertain

0.95

LIST_S2

Pathogenic

0.98

M_CAP

Benign

0.065

MetaRNN

Pathogenic

0.75

MetaSVM

Uncertain

0.60

MutationAssessor

Pathogenic

4.5

PrimateAI

Uncertain

0.53

PROVEAN

Uncertain

-2.5

REVEL

Uncertain

0.60

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.0020

Polyphen

1.0

Vest4

0.94

MVP

0.88

MPC

1.4

ClinPred

0.59

GERP RS

5.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.68

gMVP

0.79

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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