Genetic Variant NM_017435.5:c.731C>T (chr12-20717186-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_017435.5(SLCO1C1):c.731C>T(p.Ser244Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000812 in 1,600,466 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

SLCO1C1
NM_017435.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.54

Variant links:

Genes affected

SLCO1C1 (HGNC:13819): (solute carrier organic anion transporter family member 1C1) This gene encodes a member of the organic anion transporter family. The encoded protein is a transmembrane receptor that mediates the sodium-independent uptake of thyroid hormones in brain tissues. This protein has particularly high affinity for the thyroid hormones thyroxine, tri-iodothyronine and reverse tri-iodothyronine. Polymorphisms in the gene encoding this protein may be associated with fatigue and depression in patients suffering from hyperthyroidism. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2009]

SLCO1C1 links:

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ACMG classification

Classification made for transcript

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
SLCO1C1	NM_017435.5 link	c.731C>T	p.Ser244Leu	missense_variant	Exon 7 of 15	ENST00000266509.7	NP_059131.1	Q9NYB5-1
SLCO1C1	NM_001145946.2 link	c.731C>T	p.Ser244Leu	missense_variant	Exon 8 of 16		NP_001139418.1	Q9NYB5-3
SLCO1C1	NM_001145945.2 link	c.584C>T	p.Ser195Leu	missense_variant	Exon 7 of 15		NP_001139417.1	Q9NYB5-2
SLCO1C1	NM_001145944.2 link	c.377C>T	p.Ser126Leu	missense_variant	Exon 5 of 13		NP_001139416.1	Q9NYB5-4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLCO1C1	ENST00000266509.7 link	c.731C>T	p.Ser244Leu	missense_variant	Exon 7 of 15	1	NM_017435.5	ENSP00000266509.2		Q9NYB5-1

Frequencies

GnomAD3 genomes

AF:

0.0000396

AC:

AN:

151622

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00548

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000422

AC:

AN:

237080

Hom.:

AF XY:

0.00000779

AC XY:

AN XY:

128384

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000919

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000483

AC:

AN:

1448844

Hom.:

Cov.:

AF XY:

0.00000555

AC XY:

AN XY:

720486

show subpopulations

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:

0.00000542

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000396

AC:

AN:

151622

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74000

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 15, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.731C>T (p.S244L) alteration is located in exon 8 (coding exon 6) of the SLCO1C1 gene. This alteration results from a C to T substitution at nucleotide position 731, causing the serine (S) at amino acid position 244 to be replaced by a leucine (L). 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

0.78

BayesDel_addAF

Pathogenic

0.34

BayesDel_noAF

Pathogenic

0.26

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.057

.;T;.;.

Eigen

Pathogenic

0.91

Eigen_PC

Pathogenic

0.82

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.98

D;D;D;D

M_CAP

Benign

0.042

MetaRNN

Uncertain

0.72

D;D;D;D

MetaSVM

Uncertain

0.20

MutationAssessor

Pathogenic

3.8

.;H;H;.

PrimateAI

Uncertain

0.66

PROVEAN

Pathogenic

-5.6

D;D;D;D

REVEL

Uncertain

0.63

Sift

Pathogenic

0.0

D;D;D;D

Sift4G

Pathogenic

0.0010

D;D;D;D

Polyphen

1.0

.;D;.;.

Vest4

0.90

MutPred

0.69

.;Gain of catalytic residue at K248 (P = 0.0023);Gain of catalytic residue at K248 (P = 0.0023);.;

MVP

0.80

ClinPred

1.0

GERP RS

5.8

Varity_R

0.81

gMVP

0.97

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over