NM_004230.4:c.923C>G

Variant names:

• chr19-10223983-G-C
• NM_004230.4:c.923C>G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004230.4(S1PR2):​c.923C>G​(p.Pro308Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000275 in 1,454,620 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: S1PR2 NM_004230.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.33

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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07827899).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
S1PR2	NM_004230.4	c.923C>G	p.Pro308Arg	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.923C>G	p.Pro308Arg	missense_variant	Exon 2 of 2		NM_004230.4	ENSP00000496438.1
DNMT1	ENST00000588952.5	c.-401-5114C>G		intron_variant	Intron 1 of 8	5		ENSP00000467050.1
DNMT1	ENST00000592342.5	c.-284+7221C>G		intron_variant	Intron 1 of 6	3		ENSP00000465993.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000275 AC: 4 AN: 1454620 Hom.: 0 Cov.: 32 AF XY: 0.00000415 AC XY: 3 AN XY: 722882

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	0.062
BayesDel_addAF	Benign	-0.35	T
BayesDel_noAF	Benign	-0.75
CADD	Benign	0.013
DANN	Benign	0.24
DEOGEN2	Benign	0.056	T;T
Eigen	Benign	-1.9
Eigen_PC	Benign	-2.0
FATHMM_MKL	Benign	0.010	N
LIST_S2	Benign	0.39	.;T
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.078	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N;N
PrimateAI	Benign	0.27	T
Sift4G	Benign	0.43	T;.
Polyphen		0.0	B;B
Vest4		0.042
MutPred		0.36		Gain of helix (P = 0.0425);Gain of helix (P = 0.0425);
MVP		0.088
MPC		0.59
ClinPred		0.055	T
GERP RS		-10
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.021
gMVP		0.42

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: chr19-10334659;