chr19-10224028-C-A

Variant names:

• chr19-10224028-C-A
• NM_004230.4:c.878G>T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_004230.4(S1PR2):​c.878G>T​(p.Arg293Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,174 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: S1PR2 NM_004230.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.17

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]

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
S1PR2	NM_004230.4	c.878G>T	p.Arg293Leu	missense_variant	Exon 2 of 2	ENST00000646641.1	NP_004221.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
S1PR2	ENST00000646641.1	c.878G>T	p.Arg293Leu	missense_variant	Exon 2 of 2		NM_004230.4	ENSP00000496438.1
DNMT1	ENST00000588952.5	c.-401-5159G>T		intron_variant	Intron 1 of 8	5		ENSP00000467050.1
DNMT1	ENST00000592342.5	c.-284+7176G>T		intron_variant	Intron 1 of 6	3		ENSP00000465993.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460174 Hom.: 0 Cov.: 36 AF XY: 0.00000138 AC XY: 1 AN XY: 726438

Gnomad4 AFR exome AF: 0.00

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.29
BayesDel_addAF	Benign	-0.094	T
BayesDel_noAF	Benign	-0.37
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.42	T;T
Eigen	Benign	0.011
Eigen_PC	Benign	0.14
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Benign	0.71	.;T
M_CAP	Benign	0.024	T
MetaRNN	Uncertain	0.48	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.9	L;L
PrimateAI	Uncertain	0.56	T
Sift4G	Uncertain	0.050	T;.
Polyphen		0.59	P;P
Vest4		0.34
MutPred		0.52		Loss of MoRF binding (P = 0.018);Loss of MoRF binding (P = 0.018);
MVP		0.53
MPC		1.2
ClinPred		0.90	D
GERP RS		4.5
Varity_R		0.28
gMVP		0.72

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-10334704;