Variant 1-27954460-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7

The NM_014474.4(SMPDL3B):c.624G>A(p.Ala208=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000602 in 1,614,088 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0032 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00033 ( 0 hom. )

Consequence

SMPDL3B
NM_014474.4 synonymous

Scores

Clinical Significance

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

Conservation

PhyloP100: -5.83

Variant links:

Genes affected

SMPDL3B (HGNC:21416): (sphingomyelin phosphodiesterase acid like 3B) Enables phosphoric diester hydrolase activity. Predicted to be involved in membrane lipid catabolic process; negative regulation of inflammatory response; and negative regulation of toll-like receptor signaling pathway. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

SMPDL3B links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.87).

BP6

Variant 1-27954460-G-A is Benign according to our data. Variant chr1-27954460-G-A is described in ClinVar as [Benign]. Clinvar id is 728923.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-5.82 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SMPDL3B	NM_014474.4 linkuse as main transcript	c.624G>A	p.Ala208=	synonymous_variant	5/8	ENST00000373894.8
SMPDL3B	NM_001009568.3 linkuse as main transcript	c.624G>A	p.Ala208=	synonymous_variant	5/7
SMPDL3B	NM_001304579.2 linkuse as main transcript	c.6G>A	p.Ala2=	synonymous_variant	5/8
SMPDL3B	XM_011541259.3 linkuse as main transcript	c.714G>A	p.Ala238=	synonymous_variant	6/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SMPDL3B	ENST00000373894.8 linkuse as main transcript	c.624G>A	p.Ala208=	synonymous_variant	5/8	1	NM_014474.4	P1	Q92485-1
	ENST00000448015.1 linkuse as main transcript	n.286+1311C>T		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.00318

AC:

484

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0107

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00216

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:

0.0000588

Gnomad OTH

AF:

0.00144

GnomAD3 exomes

AF:

0.000860

AC:

216

AN:

251046

Hom.:

AF XY:

0.000545

AC XY:

AN XY:

135716

show subpopulations

Gnomad AFR exome

AF:

0.0121

Gnomad AMR exome

AF:

0.000434

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:

0.000326

GnomAD4 exome

AF:

0.000330

AC:

482

AN:

1461776

Hom.:

Cov.:

AF XY:

0.000272

AC XY:

198

AN XY:

727174

show subpopulations

Gnomad4 AFR exome

AF:

0.0114

Gnomad4 AMR exome

AF:

0.000648

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000719

Gnomad4 OTH exome

AF:

0.000911

GnomAD4 genome

AF:

0.00321

AC:

489

AN:

152312

Hom.:

Cov.:

AF XY:

0.00301

AC XY:

224

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.0108

Gnomad4 AMR

AF:

0.00216

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.00140

Hom.:

Bravo

AF:

0.00366

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	May 21, 2018	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.87

CADD

Benign

0.080

DANN

Benign

0.77

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