Variant 1-30876598-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_014654.4(SDC3):c.824C>T(p.Thr275Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000144 in 1,390,906 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T275N) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SDC3
NM_014654.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.08

Variant links:

Genes affected

SDC3 (HGNC:10660): (syndecan 3) The protein encoded by this gene belongs to the syndecan proteoglycan family. It may play a role in the organization of cell shape by affecting the actin cytoskeleton, possibly by transferring signals from the cell surface in a sugar-dependent mechanism. Allelic variants of this gene have been associated with obesity. [provided by RefSeq, Oct 2009]

SDC3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.29354098).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SDC3	NM_014654.4 linkuse as main transcript	c.824C>T	p.Thr275Ile	missense_variant	3/5	ENST00000339394.7	NP_055469.3	O75056
SDC3	XM_011542463.1 linkuse as main transcript	c.791C>T	p.Thr264Ile	missense_variant	3/5		XP_011540765.1
SDC3	XM_011542464.3 linkuse as main transcript	c.788C>T	p.Thr263Ile	missense_variant	3/5		XP_011540766.1
SDC3	XM_011542466.2 linkuse as main transcript	c.698C>T	p.Thr233Ile	missense_variant	3/5		XP_011540768.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SDC3	ENST00000339394.7 linkuse as main transcript	c.824C>T	p.Thr275Ile	missense_variant	3/5	1	NM_014654.4	ENSP00000344468.6		O75056
SDC3	ENST00000336798.11 linkuse as main transcript	c.650C>T	p.Thr217Ile	missense_variant	1/3	1		ENSP00000338346.7		A0A9K3Y886

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000515

AC:

AN:

194140

Hom.:

AF XY:

0.00000964

AC XY:

AN XY:

103742

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000606

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000144

AC:

AN:

1390906

Hom.:

Cov.:

AF XY:

0.00000292

AC XY:

AN XY:

685206

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000512

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000826

AC:

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

Jun 28, 2024

The c.824C>T (p.T275I) alteration is located in exon 3 (coding exon 3) of the SDC3 gene. This alteration results from a C to T substitution at nucleotide position 824, causing the threonine (T) at amino acid position 275 to be replaced by an isoleucine (I). 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

0.13

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.32

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.47

.;T

Eigen

Uncertain

0.53

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.78

T;T

M_CAP

Benign

0.010

MetaRNN

Benign

0.29

T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

1.1

.;L

PrimateAI

Uncertain

0.68

PROVEAN

Uncertain

-3.1

D;D

REVEL

Benign

0.15

Sift

Pathogenic

0.0

D;D

Sift4G

Uncertain

0.019

D;D

Polyphen

1.0

D;D

Vest4

0.41

MutPred

0.34

.;Loss of phosphorylation at T275 (P = 0.0103);

MVP

0.093

MPC

0.072

ClinPred

0.93

GERP RS

5.0

Varity_R

0.36

gMVP

0.32

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