2-20203195-T-A
Position:
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_002997.5(SDC1):c.655A>T(p.Asn219Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 33)
Consequence
SDC1
NM_002997.5 missense
NM_002997.5 missense
Scores
6
12
Clinical Significance
Conservation
PhyloP100: 1.85
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]
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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=0.40179467).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SDC1 | NM_002997.5 | c.655A>T | p.Asn219Tyr | missense_variant | 4/5 | ENST00000254351.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SDC1 | ENST00000254351.9 | c.655A>T | p.Asn219Tyr | missense_variant | 4/5 | 1 | NM_002997.5 | P1 | |
SDC1 | ENST00000403076.5 | c.478+767A>T | intron_variant | 1 | |||||
SDC1 | ENST00000381150.5 | c.655A>T | p.Asn219Tyr | missense_variant | 5/6 | 5 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome Cov.: 32
GnomAD4 exome
Cov.:
32
GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
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 | Apr 12, 2022 | The c.655A>T (p.N219Y) alteration is located in exon 5 (coding exon 4) of the SDC1 gene. This alteration results from a A to T substitution at nucleotide position 655, causing the asparagine (N) at amino acid position 219 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Uncertain
DEOGEN2
Uncertain
D;D
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
M_CAP
Benign
D
MetaRNN
Benign
T;T
MetaSVM
Benign
T
MutationAssessor
Benign
L;L
MutationTaster
Benign
D;N;N
PrimateAI
Benign
T
PROVEAN
Uncertain
D;D
REVEL
Benign
Sift
Uncertain
D;D
Sift4G
Uncertain
D;D
Polyphen
P;P
Vest4
MutPred
Gain of phosphorylation at N219 (P = 0.0079);Gain of phosphorylation at N219 (P = 0.0079);
MVP
MPC
0.85
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.