Genetic Variant THBS1:p.Gly26Ala (chr15-39582202-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_003246.4(THBS1):c.77G>C(p.Gly26Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000276 in 1,450,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G26R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

THBS1
NM_003246.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.07

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

congenital glaucoma
Inheritance: AD Classification: STRONG Submitted by: PanelApp Australia
nonsyndromic genetic hearing loss
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

THBS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4

Computational evidence support a benign effect (MetaRNN=0.08164799).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003246.4. 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
	THBS1	NM_003246.4	MANE Select	c.77G>C	p.Gly26Ala	missense	Exon 3 of 22	NP_003237.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
THBS1	ENST00000260356.6	TSL:1 MANE Select	c.77G>C	p.Gly26Ala	missense	Exon 3 of 22	ENSP00000260356.5	P07996-1
THBS1	ENST00000880750.1		c.77G>C	p.Gly26Ala	missense	Exon 4 of 23	ENSP00000550809.1
THBS1	ENST00000880751.1		c.77G>C	p.Gly26Ala	missense	Exon 4 of 23	ENSP00000550810.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000625

AC:

AN:

239998

AF XY:

0.000100

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000170

GnomAD4 exome

AF:

0.0000276

AC:

AN:

1450078

Hom.:

Cov.:

AF XY:

0.0000458

AC XY:

AN XY:

720366

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33070

American (AMR)

AF:

0.00

AC:

AN:

43192

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25192

East Asian (EAS)

AF:

0.00

AC:

AN:

39580

South Asian (SAS)

AF:

0.000391

AC:

AN:

84370

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53036

Middle Eastern (MID)

AF:

0.000175

AC:

AN:

5704

European-Non Finnish (NFE)

AF:

0.00000181

AC:

AN:

1106116

Other (OTH)

AF:

0.0000669

AC:

AN:

59818

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000494

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.099

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.30

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.16

Eigen

Benign

-0.23

Eigen_PC

Benign

-0.058

FATHMM_MKL

Benign

0.55

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.029

MetaRNN

Benign

0.082

MetaSVM

Benign

-0.69

MutationAssessor

Benign

1.1

PhyloP100

3.1

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-1.9

REVEL

Benign

0.026

Sift

Benign

0.043

Sift4G

Benign

0.21

Polyphen

0.0060

Vest4

0.17

MutPred

0.23

Loss of catalytic residue at P22 (P = 0.0836)

MVP

0.69

MPC

0.47

ClinPred

0.068

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.17

gMVP

0.49

Mutation Taster

=96/4

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over