5-80040121-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_003248.6(THBS4):c.133G>A(p.Ala45Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000756 in 1,613,848 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

THBS4
NM_003248.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.76

Variant links:

Genes affected

THBS4 (HGNC:11788): (thrombospondin 4) The protein encoded by this gene belongs to the thrombospondin protein family. Thrombospondin family members are adhesive glycoproteins that mediate cell-to-cell and cell-to-matrix interactions. This protein forms a pentamer and can bind to heparin and calcium. It is involved in local signaling in the developing and adult nervous system, and it contributes to spinal sensitization and neuropathic pain states. This gene is activated during the stromal response to invasive breast cancer. It may also play a role in inflammatory responses in Alzheimer's disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

THBS4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.024625212).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
THBS4	NM_003248.6 linkuse as main transcript	c.133G>A	p.Ala45Thr	missense_variant	2/22	ENST00000350881.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
THBS4	ENST00000350881.6 linkuse as main transcript	c.133G>A	p.Ala45Thr	missense_variant	2/22	1	NM_003248.6	P1
THBS4	ENST00000511733.1 linkuse as main transcript	c.-141G>A		5_prime_UTR_variant	2/22	2
THBS4	ENST00000510218.1 linkuse as main transcript	n.222G>A		non_coding_transcript_exon_variant	3/4	4
THBS4	ENST00000513310.5 linkuse as main transcript	n.191G>A		non_coding_transcript_exon_variant	3/5	4

Frequencies

GnomAD3 genomes

AF:

0.000230

AC:

AN:

151846

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000799

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

GnomAD3 exomes

AF:

0.000103

AC:

AN:

251466

Hom.:

AF XY:

0.0000589

AC XY:

AN XY:

135904

show subpopulations

Gnomad AFR exome

AF:

0.000923

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000595

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.0000605

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.000866

Gnomad4 AMR exome

AF:

0.000201

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000562

Gnomad4 NFE exome

AF:

0.0000297

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.000230

AC:

AN:

151964

Hom.:

Cov.:

AF XY:

0.000229

AC XY:

AN XY:

74270

show subpopulations

Gnomad4 AFR

AF:

0.000797

Gnomad4 AMR

AF:

0.000131

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:

0.00

Alfa

AF:

0.0000812

Hom.:

Bravo

AF:

0.000283

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00159

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000123

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

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

Mar 06, 2023

The c.133G>A (p.A45T) alteration is located in exon 2 (coding exon 2) of the THBS4 gene. This alteration results from a G to A substitution at nucleotide position 133, causing the alanine (A) at amino acid position 45 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

0.070

BayesDel_addAF

Benign

-0.66

BayesDel_noAF

Benign

-0.76

Cadd

Benign

Dann

Benign

0.89

DEOGEN2

Benign

0.11

Eigen

Benign

-0.93

Eigen_PC

Benign

-0.97

FATHMM_MKL

Benign

0.063

LIST_S2

Benign

0.68

M_CAP

Benign

0.0070

MetaRNN

Benign

0.025

MetaSVM

Benign

-0.94

MutationAssessor

Benign

0.90

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.31

PROVEAN

Benign

-0.85

REVEL

Benign

0.017

Sift

Benign

0.24

Sift4G

Benign

0.44

Polyphen

0.031

Vest4

0.17

MVP

0.26

MPC

0.25

ClinPred

0.0018

GERP RS

-0.28

Varity_R

0.066

gMVP

0.19

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