19-10223951-C-T

Position:

chr19-10223951-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_004230.4(S1PR2):c.955G>A(p.Gly319Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000113 in 1,604,400 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

S1PR2
NM_004230.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 1.07

Variant links:

Genes affected

S1PR2 (HGNC:3169): (sphingosine-1-phosphate receptor 2) This gene encodes a member of the G protein-coupled receptors, as well as the EDG family of proteins. The encoded protein is a receptor for sphingosine 1-phosphate, which participates in cell proliferation, survival, and transcriptional activation. Defects in this gene have been associated with congenital profound deafness. [provided by RefSeq, Mar 2016]

S1PR2 links:

DNMT1 (HGNC:2976): (DNA methyltransferase 1) This gene encodes an enzyme that transfers methyl groups to cytosine nucleotides of genomic DNA. This protein is the major enzyme responsible for maintaining methylation patterns following DNA replication and shows a preference for hemi-methylated DNA. Methylation of DNA is an important component of mammalian epigenetic gene regulation. Aberrant methylation patterns are found in human tumors and associated with developmental abnormalities. Variation in this gene has been associated with cerebellar ataxia, deafness, and narcolepsy, and neuropathy, hereditary sensory, type IE. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

DNMT1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06505677).

BP6

Variant 19-10223951-C-T is Benign according to our data. Variant chr19-10223951-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 929890.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
S1PR2	NM_004230.4 linkuse as main transcript	c.955G>A	p.Gly319Arg	missense_variant	2/2	ENST00000646641.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
S1PR2	ENST00000646641.1 linkuse as main transcript	c.955G>A	p.Gly319Arg	missense_variant	2/2		NM_004230.4	P1
DNMT1	ENST00000588952.5 linkuse as main transcript	c.-401-5082G>A		intron_variant		5
DNMT1	ENST00000592342.5 linkuse as main transcript	c.-284+7253G>A		intron_variant		3

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000381

AC:

AN:

236194

Hom.:

AF XY:

0.0000309

AC XY:

AN XY:

129406

show subpopulations

Gnomad AFR exome

AF:

0.000136

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:

0.0000667

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000121

AC:

175

AN:

1452196

Hom.:

Cov.:

AF XY:

0.000116

AC XY:

AN XY:

721470

show subpopulations

Gnomad4 AFR exome

AF:

0.0000902

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000147

Gnomad4 OTH exome

AF:

0.000150

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000859

Hom.:

Bravo

AF:

0.0000567

ESP6500AA

AF:

0.000228

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000744

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 28, 2024

The c.955G>A (p.G319R) alteration is located in exon 2 (coding exon 1) of the S1PR2 gene. This alteration results from a G to A substitution at nucleotide position 955, causing the glycine (G) at amino acid position 319 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 24, 2021

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The arginine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with S1PR2-related conditions. ClinVar contains an entry for this variant (Variation ID: 929890). This variant is present in population databases (rs139097585, ExAC 0.01%). This sequence change replaces glycine with arginine at codon 319 of the S1PR2 protein (p.Gly319Arg). The glycine residue is highly conserved and there is a moderate physicochemical difference between glycine and arginine. -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Feb 11, 2020

The p.Gly319Arg variant in S1PR2 is classified as likely benign due to a lack of conservation across species. 9 mammals (naked mole rat, guinea pig, chinchilla, brush-tailed rat, Tibetan antelope, cow, sheep, domestic goat and shrew) carry an arginine (ARG) at this position. In addition, computational prediction tools predict that this variant does not impact the protein. It has been identified in 0.014% (2/14686) of African chromosomes by gnomAD (http://gnomad.broadinstitute.org). ACMG/AMP Criteria applied: BP4_Strong. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.52

CADD

Benign

DANN

Benign

0.73

DEOGEN2

Benign

0.086

T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.58

.;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.065

T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.11

N;N

MutationTaster

Benign

0.92

PrimateAI

Benign

0.38

Sift4G

Benign

0.16

T;.

Polyphen

0.0010

B;B

Vest4

0.11

MutPred

0.37

Gain of MoRF binding (P = 0.012);Gain of MoRF binding (P = 0.012);

MVP

0.31

MPC

0.68

ClinPred

0.0084

GERP RS

0.92

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.054

gMVP

0.57

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