11-75169669-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_007256.5(SLCO2B1):c.686T>A(p.Ile229Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000302 in 1,459,036 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 Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000030 (0 hom.)
• Consequence: SLCO2B1 NM_007256.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.48

Genes affected

SLCO2B1 (HGNC:10962): (solute carrier organic anion transporter family member 2B1) This locus encodes a member of the organic anion-transporting polypeptide family of membrane proteins. The protein encoded by this locus may function in regulation of placental uptake of sulfated steroids. Alternatively spliced transcript variants have been described. [provided by RefSeq, Nov 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.847

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLCO2B1	NM_007256.5	c.686T>A	p.Ile229Asn	missense_variant	6/14	ENST00000289575.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLCO2B1	ENST00000289575.10	c.686T>A	p.Ile229Asn	missense_variant	6/14	1	NM_007256.5	P2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.0000302 AC: 44 AN: 1459036 Hom.: 0 Cov.: 31 AF XY: 0.0000276 AC XY: 20 AN XY: 725710

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: 0.0000396

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 16, 2023

The c.686T>A (p.I229N) alteration is located in exon 6 (coding exon 6) of the SLCO2B1 gene. This alteration results from a T to A substitution at nucleotide position 686, causing the isoleucine (I) at amino acid position 229 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.75
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.060
Cadd	Pathogenic	28
Dann	Uncertain	0.99
Eigen	Pathogenic	0.80
Eigen_PC	Pathogenic	0.72
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D;D;D;.;D
M_CAP	Uncertain	0.12	D
MetaRNN	Pathogenic	0.85	D;D;D;D;D
MetaSVM	Uncertain	-0.17	T
MutationTaster	Benign	1.0	D;D;D;D;D;D;D
PrimateAI	Uncertain	0.75	T
PROVEAN	Pathogenic	-5.9	D;D;D;D;D
REVEL	Uncertain	0.41
Sift	Pathogenic	0.0	D;D;D;D;D
Sift4G	Uncertain	0.0050	D;D;D;D;D
Vest4		0.91
MutPred		0.68		Gain of catalytic residue at I229 (P = 0.0148);.;.;.;.;
MVP		0.82
MPC		1.1
ClinPred		1.0	D
GERP RS		4.9
gMVP		0.91

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

Other links and lift over

dbSNP: rs1591816399; hg19: chr11-74880714;