rs774795340

Positions:

• chr3-133953723-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PP3 PP5_Moderate

The NM_005630.3(SLCO2A1):​c.664G>A​(p.Gly222Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000752 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000075 (0 hom.)
• Consequence: SLCO2A1 NM_005630.3 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:4
• Conservation: PhyloP100: 7.16

Genes affected

SLCO2A1 (HGNC:10955): (solute carrier organic anion transporter family member 2A1) This gene encodes a prostaglandin transporter that is a member of the 12-membrane-spanning superfamily of transporters. The encoded protein may be involved in mediating the uptake and clearance of prostaglandins in numerous tissues. [provided by RefSeq, Dec 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PP3: Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
• PP5: Variant 3-133953723-C-T is Pathogenic according to our data. Variant chr3-133953723-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 438675.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr3-133953723-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLCO2A1	NM_005630.3	c.664G>A	p.Gly222Arg	missense_variant	5/14	ENST00000310926.11	NP_005621.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLCO2A1	ENST00000310926.11	c.664G>A	p.Gly222Arg	missense_variant	5/14	1	NM_005630.3	ENSP00000311291	P1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000752 AC: 11 AN: 1461890 Hom.: 0 Cov.: 31 AF XY: 0.00000825 AC XY: 6 AN XY: 727244

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000504

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000629

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:4

Revision: criteria provided, single submitter

Submissions by phenotype

Hypertrophic osteoarthropathy, primary, autosomal recessive, 2 Pathogenic:2

Pathogenic, no assertion criteria provided	clinical testing	Bioscientia Institut fuer Medizinische Diagnostik GmbH, Sonic Healthcare	Apr 20, 2017	- -
Pathogenic, no assertion criteria provided	literature only	OMIM	Aug 01, 2012	- -

Hypertrophic osteoarthropathy, primary, autosomal dominant Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Aug 01, 2012

- -

not provided Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 14, 2022

For these reasons, this variant has been classified as Pathogenic. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 438675). This missense change has been observed in individual(s) with hypertrophic osteoarthropathy (PMID: 22197487, 22553128, 23509104, 26539716). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 222 of the SLCO2A1 protein (p.Gly222Arg). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.35	D
BayesDel_noAF	Pathogenic	0.27
CADD	Pathogenic	36
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.66	D;T
Eigen	Pathogenic	0.97
Eigen_PC	Pathogenic	0.89
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.95	D;D
M_CAP	Uncertain	0.28	D
MetaRNN	Pathogenic	0.98	D;D
MetaSVM	Uncertain	0.42	D
MutationAssessor	Pathogenic	3.7	H;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.77	T
PROVEAN	Pathogenic	-5.2	D;D
REVEL	Pathogenic	0.70
Sift	Uncertain	0.0020	D;D
Sift4G	Uncertain	0.0020	D;D
Polyphen		1.0	D;D
Vest4		0.94
MutPred		0.93		Gain of methylation at G222 (P = 0.0095);.;
MVP		0.92
MPC		0.59
ClinPred		1.0	D
GERP RS		5.4
Varity_R		0.95
gMVP		0.98

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.71		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.71		Position offset: -2

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

Publications

LitVar

Other links and lift over

dbSNP: rs774795340; hg19: chr3-133672567;