Genetic Variant SPNS3:p.Ala505Thr (chr17-4487868-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_182538.5(SPNS3):c.1513G>A(p.Ala505Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000378 in 1,614,046 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000038 ( 0 hom. )

Consequence

SPNS3
NM_182538.5 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.645

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]

SPNS3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.019054592).

BP6

Variant 17-4487868-G-A is Benign according to our data. Variant chr17-4487868-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3448670.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPNS3	NM_182538.5 link	c.1513G>A	p.Ala505Thr	missense_variant	Exon 12 of 12	ENST00000355530.7	NP_872344.3	Q6ZMD2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SPNS3	ENST00000355530.7 link	c.1513G>A	p.Ala505Thr	missense_variant	Exon 12 of 12	2	NM_182538.5	ENSP00000347721.2	Q6ZMD2-1
SPNS3	ENST00000575194.5 link	n.*767G>A		non_coding_transcript_exon_variant	Exon 11 of 11	1		ENSP00000460781.1	I3L3W7
SPNS3	ENST00000575194.5 link	n.*767G>A		3_prime_UTR_variant	Exon 11 of 11	1		ENSP00000460781.1	I3L3W7
SPNS3	ENST00000575796.1 link	n.*6G>A		downstream_gene_variant		5

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152272

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000964

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251228

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135826

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:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000383

AC:

AN:

1461656

Hom.:

Cov.:

AF XY:

0.0000385

AC XY:

AN XY:

727134

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000441

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152390

Hom.:

Cov.:

AF XY:

0.0000268

AC XY:

AN XY:

74526

show subpopulations

Gnomad4 AFR

AF:

0.0000962

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.0000340

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Aug 20, 2024

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.062

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.85

CADD

Benign

0.026

DANN

Benign

0.59

DEOGEN2

Benign

0.0032

Eigen

Benign

-2.2

Eigen_PC

Benign

-2.2

FATHMM_MKL

Benign

0.0034

LIST_S2

Benign

0.28

M_CAP

Benign

0.0032

MetaRNN

Benign

0.019

MetaSVM

Benign

-0.96

MutationAssessor

Benign

-1.4

PrimateAI

Benign

0.25

PROVEAN

Benign

0.36

REVEL

Benign

0.039

Sift

Benign

0.81

Sift4G

Benign

0.90

Polyphen

0.0020

Vest4

0.022

MVP

0.014

MPC

0.12

ClinPred

0.033

GERP RS

-7.8

Varity_R

0.027

gMVP

0.17

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over