chr2-20204094-C-T

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_002997.5(SDC1):​c.346G>A​(p.Ala116Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000963 in 1,609,082 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0042 ( 6 hom., cov: 31)
Exomes 𝑓: 0.00063 ( 3 hom. )

Consequence

SDC1
NM_002997.5 missense

Scores

1
16

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.698

Publications

4 publications found
Variant links:
Genes affected
SDC1 (HGNC:10658): (syndecan 1) The protein encoded by this gene is a transmembrane (type I) heparan sulfate proteoglycan and is a member of the syndecan proteoglycan family. The syndecans mediate cell binding, cell signaling, and cytoskeletal organization and syndecan receptors are required for internalization of the HIV-1 tat protein. The syndecan-1 protein functions as an integral membrane protein and participates in cell proliferation, cell migration and cell-matrix interactions via its receptor for extracellular matrix proteins. Altered syndecan-1 expression has been detected in several different tumor types. While several transcript variants may exist for this gene, the full-length natures of only two have been described to date. These two represent the major variants of this gene and encode the same protein. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0035687387).
BP6
Variant 2-20204094-C-T is Benign according to our data. Variant chr2-20204094-C-T is described in ClinVar as Benign. ClinVar VariationId is 742271.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 631 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002997.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SDC1
NM_002997.5
MANE Select
c.346G>Ap.Ala116Thr
missense
Exon 3 of 5NP_002988.4
SDC1
NM_001006946.2
c.346G>Ap.Ala116Thr
missense
Exon 4 of 6NP_001006947.2P18827

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SDC1
ENST00000254351.9
TSL:1 MANE Select
c.346G>Ap.Ala116Thr
missense
Exon 3 of 5ENSP00000254351.4P18827
SDC1
ENST00000403076.5
TSL:1
c.346G>Ap.Ala116Thr
missense
Exon 3 of 4ENSP00000384613.1E9PHH3
SDC1
ENST00000381150.5
TSL:5
c.346G>Ap.Ala116Thr
missense
Exon 4 of 6ENSP00000370542.1P18827

Frequencies

GnomAD3 genomes
AF:
0.00407
AC:
618
AN:
151928
Hom.:
5
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0132
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00256
Gnomad ASJ
AF:
0.00548
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00239
GnomAD2 exomes
AF:
0.00139
AC:
343
AN:
247426
AF XY:
0.00111
show subpopulations
Gnomad AFR exome
AF:
0.0132
Gnomad AMR exome
AF:
0.00110
Gnomad ASJ exome
AF:
0.00638
Gnomad EAS exome
AF:
0.000109
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000133
Gnomad OTH exome
AF:
0.00132
GnomAD4 exome
AF:
0.000630
AC:
918
AN:
1457036
Hom.:
3
Cov.:
50
AF XY:
0.000549
AC XY:
398
AN XY:
725028
show subpopulations
African (AFR)
AF:
0.0150
AC:
502
AN:
33474
American (AMR)
AF:
0.00114
AC:
51
AN:
44680
Ashkenazi Jewish (ASJ)
AF:
0.00586
AC:
153
AN:
26116
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39700
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86222
European-Finnish (FIN)
AF:
0.0000409
AC:
2
AN:
48894
Middle Eastern (MID)
AF:
0.000694
AC:
4
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000890
AC:
99
AN:
1111846
Other (OTH)
AF:
0.00169
AC:
102
AN:
60340
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
62
124
187
249
311
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<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
AF:
0.00415
AC:
631
AN:
152046
Hom.:
6
Cov.:
31
AF XY:
0.00422
AC XY:
314
AN XY:
74326
show subpopulations
African (AFR)
AF:
0.0135
AC:
558
AN:
41462
American (AMR)
AF:
0.00255
AC:
39
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00548
AC:
19
AN:
3468
East Asian (EAS)
AF:
0.000194
AC:
1
AN:
5160
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4810
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000132
AC:
9
AN:
67960
Other (OTH)
AF:
0.00237
AC:
5
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
31
62
94
125
156
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00183
Hom.:
10
Bravo
AF:
0.00443
ESP6500AA
AF:
0.00794
AC:
35
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.00125
AC:
152
Asia WGS
AF:
0.00318
AC:
11
AN:
3478
EpiCase
AF:
0.000218
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not provided (2)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.066
BayesDel_addAF
Benign
-0.59
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
0.95
DANN
Uncertain
0.99
DEOGEN2
Benign
0.30
T
Eigen
Benign
-0.97
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.036
N
LIST_S2
Benign
0.55
T
MetaRNN
Benign
0.0036
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.83
L
PhyloP100
-0.70
PrimateAI
Benign
0.26
T
PROVEAN
Benign
0.060
N
REVEL
Benign
0.018
Sift
Benign
0.37
T
Sift4G
Benign
0.88
T
Polyphen
0.016
B
Vest4
0.025
MVP
0.36
MPC
0.24
ClinPred
0.0044
T
GERP RS
-0.45
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.035
gMVP
0.12
Mutation Taster
=98/2
polymorphism

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

Other links and lift over

dbSNP: rs112048177; hg19: chr2-20403855; COSMIC: COSV99587126; COSMIC: COSV99587126; API