10-117255657-G-C

Variant names:

• chr10-117255657-G-C
• rs1293033867
• NM_003054.6:c.895G>C

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2 PP3_Strong PP5_Moderate

The NM_003054.6(SLC18A2):​c.895G>C​(p.Gly299Arg) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,798 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 15/27 in silico tools predict a damaging outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: SLC18A2 NM_003054.6 missense, splice_region
• Scores: Splicing: ADA: 1.000
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 9.86

Genes affected

SLC18A2 (HGNC:10935): (solute carrier family 18 member A2) This gene encodes an transmembrane protein that functions as an ATP-dependent transporter of monoamines, such as dopamine, norepinephrine, serotonin, and histamine. This protein transports amine neurotransmitters into synaptic vesicles. Polymorphisms in this gene may be associated with schizophrenia, bipolar disorder, and other neurological/psychiatric ailments. [provided by RefSeq, Jun 2018]

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
• PP5: Variant 10-117255657-G-C is Pathogenic according to our data. Variant chr10-117255657-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 520811.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC18A2	NM_003054.6	c.895G>C	p.Gly299Arg	missense_variant, splice_region_variant	Exon 9 of 16	ENST00000644641.2	NP_003045.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC18A2	ENST00000644641.2	c.895G>C	p.Gly299Arg	missense_variant, splice_region_variant	Exon 9 of 16		NM_003054.6	ENSP00000496339.1
SLC18A2	ENST00000497497.1	n.1311G>C		splice_region_variant, non_coding_transcript_exon_variant	Exon 8 of 15	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460798 Hom.: 0 Cov.: 35 AF XY: 0.00 AC XY: 0 AN XY: 726720

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.: 32

Bravo AF: 0.0000151

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Pathogenic:1

Dec 30, 2015

Ambry Genetics

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.43	D
BayesDel_noAF	Pathogenic	0.38
CADD	Pathogenic	39
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.71	D;D
Eigen	Pathogenic	0.88
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.95	.;D
M_CAP	Uncertain	0.19	D
MetaRNN	Pathogenic	0.95	D;D
MetaSVM	Uncertain	0.45	D
MutationAssessor	Pathogenic	3.3	M;M
PrimateAI	Pathogenic	0.87	D
PROVEAN	Pathogenic	-6.7	D;.
REVEL	Pathogenic	0.83
Sift	Uncertain	0.0030	D;.
Sift4G	Uncertain	0.0050	D;.
Polyphen		1.0	D;D
Vest4		0.97
MVP		0.93
MPC		1.3
ClinPred		1.0	D
GERP RS		5.1
Varity_R		0.86
gMVP		0.96

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	1.0
SpliceAI score (max)		0.96		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.70		Position offset: 39
DS_DL_spliceai		0.96		Position offset: 0

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1293033867; hg19: chr10-119015168;