rs375755347
Variant names:
Your query was ambiguous. Multiple possible variants found:
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_003123.6(SPN):c.424A>C(p.Thr142Pro) 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. 13/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.
Frequency
Genomes: not found (cov: 31)
Consequence
SPN
NM_003123.6 missense
NM_003123.6 missense
Scores
4
15
Clinical Significance
Not reported in ClinVar
Conservation
PhyloP100: 0.481
Genes affected
SPN (HGNC:11249): (sialophorin) This gene encodes a highly sialylated glycoprotein that functions in antigen-specific activation of T cells, and is found on the surface of thymocytes, T lymphocytes, monocytes, granulocytes, and some B lymphocytes. It contains a mucin-like extracellular domain, a transmembrane region and a carboxy-terminal intracellular region. The extracellular domain has a high proportion of serine and threonine residues, allowing extensive O-glycosylation, and has one potential N-glycosylation site, while the carboxy-terminal region has potential phosphorylation sites that may mediate transduction of activation signals. Different glycoforms of this protein have been described. In stimulated immune cells, proteolytic cleavage of the extracellular domain occurs in some cell types, releasing a soluble extracellular fragment. Defects in expression of this gene are associated with Wiskott-Aldrich syndrome. [provided by RefSeq, Sep 2017]
QPRT (HGNC:9755): (quinolinate phosphoribosyltransferase) This gene encodes a key enzyme in catabolism of quinolinate, an intermediate in the tryptophan-nicotinamide adenine dinucleotide pathway. Quinolinate acts as a most potent endogenous exitotoxin to neurons. Elevation of quinolinate levels in the brain has been linked to the pathogenesis of neurodegenerative disorders such as epilepsy, Alzheimer's disease, and Huntington's disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 0 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.14190125).
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| SPN | NM_003123.6 | c.424A>C | p.Thr142Pro | missense_variant | Exon 2 of 2 | ENST00000652691.1 | NP_003114.1 | |
| SPN | NM_001030288.4 | c.424A>C | p.Thr142Pro | missense_variant | Exon 2 of 2 | NP_001025459.1 |
Ensembl
Frequencies
GnomAD3 genomes
GnomAD3 genomes
Cov.:
31
GnomAD4 exome Cov.: 31
GnomAD4 exome
Cov.:
31
GnomAD4 genome
GnomAD4 genome
Cov.:
31
ClinVar
Not reported inComputational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
DEOGEN2
Uncertain
D;.;D
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
N
LIST_S2
Benign
.;T;T
M_CAP
Benign
T
MetaRNN
Benign
T;T;T
MetaSVM
Benign
T
MutationAssessor
Uncertain
M;.;M
PrimateAI
Benign
T
PROVEAN
Uncertain
D;D;D
REVEL
Benign
Sift
Benign
T;T;T
Sift4G
Uncertain
D;D;D
Polyphen
D;.;D
Vest4
MutPred
Loss of phosphorylation at T142 (P = 0.0146);Loss of phosphorylation at T142 (P = 0.0146);Loss of phosphorylation at T142 (P = 0.0146);
MVP
MPC
0.34
ClinPred
D
GERP RS
Varity_R
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