1-30874504-G-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_014654.4(SDC3):​c.955C>A​(p.Leu319Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000142 in 1,614,054 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

SDC3
NM_014654.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.19
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.2418581).
BS2
High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SDC3NM_014654.4 linkc.955C>A p.Leu319Met missense_variant 4/5 ENST00000339394.7 NP_055469.3 O75056
SDC3XM_011542463.1 linkc.922C>A p.Leu308Met missense_variant 4/5 XP_011540765.1
SDC3XM_011542464.3 linkc.919C>A p.Leu307Met missense_variant 4/5 XP_011540766.1
SDC3XM_011542466.2 linkc.829C>A p.Leu277Met missense_variant 4/5 XP_011540768.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SDC3ENST00000339394.7 linkc.955C>A p.Leu319Met missense_variant 4/51 NM_014654.4 ENSP00000344468.6 O75056
SDC3ENST00000336798.11 linkc.781C>A p.Leu261Met missense_variant 2/31 ENSP00000338346.7 A0A9K3Y886

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152200
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251456
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135900
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1461854
Hom.:
0
Cov.:
32
AF XY:
0.0000110
AC XY:
8
AN XY:
727238
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:
0.0000162
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000772
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 submitterclinical testingAmbry GeneticsSep 04, 2024The c.955C>A (p.L319M) alteration is located in exon 4 (coding exon 4) of the SDC3 gene. This alteration results from a C to A substitution at nucleotide position 955, causing the leucine (L) at amino acid position 319 to be replaced by a methionine (M). 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
0.15
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.52
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.25
.;T
Eigen
Benign
-0.018
Eigen_PC
Benign
-0.031
FATHMM_MKL
Benign
0.54
D
LIST_S2
Benign
0.85
T;T
M_CAP
Benign
0.0069
T
MetaRNN
Benign
0.24
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.69
.;N
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-0.32
N;N
REVEL
Benign
0.13
Sift
Benign
0.060
T;D
Sift4G
Benign
0.21
T;T
Polyphen
0.99
D;D
Vest4
0.27
MVP
0.082
MPC
0.065
ClinPred
0.24
T
GERP RS
3.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.066
gMVP
0.16

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.

Other links and lift over

dbSNP: rs766999758; hg19: chr1-31347351; API