17-4446141-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_182538.5(SPNS3):​c.496G>A​(p.Val166Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000454 in 1,613,538 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00046 ( 0 hom. )

Consequence

SPNS3
NM_182538.5 missense

Scores

1
4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.52
Variant links:
Genes affected
SPNS3 (HGNC:28433): (SPNS lysolipid transporter 3, sphingosine-1-phosphate (putative)) Predicted to enable transmembrane transporter activity. Predicted to be involved in lipid transport and transmembrane transport. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

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=0.14046982).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SPNS3NM_182538.5 linkuse as main transcriptc.496G>A p.Val166Met missense_variant 4/12 ENST00000355530.7 NP_872344.3 Q6ZMD2-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SPNS3ENST00000355530.7 linkuse as main transcriptc.496G>A p.Val166Met missense_variant 4/122 NM_182538.5 ENSP00000347721.2 Q6ZMD2-1
SPNS3ENST00000575194.5 linkuse as main transcriptn.359G>A non_coding_transcript_exon_variant 3/111 ENSP00000460781.1 I3L3W7
SPNS3ENST00000572078.1 linkuse as main transcriptn.287G>A non_coding_transcript_exon_variant 2/43
SPNS3ENST00000576069.5 linkuse as main transcriptn.370G>A non_coding_transcript_exon_variant 3/65 ENSP00000519557.1

Frequencies

GnomAD3 genomes
AF:
0.000388
AC:
59
AN:
152112
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000618
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000334
AC:
84
AN:
251142
Hom.:
0
AF XY:
0.000280
AC XY:
38
AN XY:
135726
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.000637
Gnomad ASJ exome
AF:
0.0000995
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000484
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000461
AC:
673
AN:
1461426
Hom.:
0
Cov.:
30
AF XY:
0.000421
AC XY:
306
AN XY:
726988
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.000537
Gnomad4 ASJ exome
AF:
0.0000766
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000562
Gnomad4 OTH exome
AF:
0.000265
GnomAD4 genome
AF:
0.000388
AC:
59
AN:
152112
Hom.:
0
Cov.:
32
AF XY:
0.000350
AC XY:
26
AN XY:
74300
show subpopulations
Gnomad4 AFR
AF:
0.0000966
Gnomad4 AMR
AF:
0.000720
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000942
Gnomad4 NFE
AF:
0.000618
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000679
Hom.:
0
Bravo
AF:
0.000468
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000814
AC:
7
ExAC
AF:
0.000321
AC:
39
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000436
EpiControl
AF:
0.000474

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 GeneticsAug 12, 2021The c.496G>A (p.V166M) alteration is located in exon 4 (coding exon 4) of the SPNS3 gene. This alteration results from a G to A substitution at nucleotide position 496, causing the valine (V) at amino acid position 166 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
-0.42
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.23
T
Eigen
Benign
-0.22
Eigen_PC
Benign
-0.46
FATHMM_MKL
Benign
0.16
N
LIST_S2
Pathogenic
0.98
D
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.14
T
MetaSVM
Benign
-0.77
T
MutationAssessor
Uncertain
2.7
M
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.6
N
REVEL
Benign
0.14
Sift
Uncertain
0.0060
D
Sift4G
Uncertain
0.015
D
Polyphen
0.99
D
Vest4
0.33
MVP
0.29
MPC
0.29
ClinPred
0.035
T
GERP RS
1.6
Varity_R
0.21
gMVP
0.47

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: rs143246776; hg19: chr17-4349436; API