Genetic Variant SLC5A9:p.Ile79Thr (chr1-48228851-T-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001011547.3(SLC5A9):c.236T>C(p.Ile79Thr) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000483 in 1,613,758 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

SLC5A9
NM_001011547.3 missense, splice_region

Scores

Splicing: ADA: 0.7681

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.80

Variant links:

Genes affected

SLC5A9 (HGNC:22146): (solute carrier family 5 member 9) Predicted to enable glucose:sodium symporter activity. Predicted to be involved in sodium ion transport. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

SLC5A9 links:

ENSG00000272491 (HGNC:):

ENSG00000272491 links:

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ACMG classification

Classification made for transcript

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, 0.868

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC5A9	NM_001011547.3 link	c.236T>C	p.Ile79Thr	missense_variant, splice_region_variant	Exon 3 of 14	ENST00000438567.7	NP_001011547.2	Q2M3M2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC5A9	ENST00000438567.7 link	c.236T>C	p.Ile79Thr	missense_variant, splice_region_variant	Exon 3 of 14	1	NM_001011547.3	ENSP00000401730.2		Q2M3M2-1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000399

AC:

AN:

250896

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135592

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

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:

0.0000441

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000479

AC:

AN:

1461424

Hom.:

Cov.:

AF XY:

0.0000371

AC XY:

AN XY:

727012

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000112

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:

0.0000540

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152334

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74498

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000463

Hom.:

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 24, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.236T>C (p.I79T) alteration is located in exon 3 (coding exon 3) of the SLC5A9 gene. This alteration results from a T to C substitution at nucleotide position 236, causing the isoleucine (I) at amino acid position 79 to be replaced by a threonine (T). 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

Uncertain

0.40

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Pathogenic

0.33

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.028

.;T;.

Eigen

Pathogenic

0.77

Eigen_PC

Pathogenic

0.72

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.83

T;T;D

M_CAP

Benign

0.078

MetaRNN

Pathogenic

0.87

D;D;D

MetaSVM

Uncertain

0.76

MutationAssessor

Uncertain

2.8

M;M;M

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-4.1

D;D;D

REVEL

Pathogenic

0.90

Sift

Uncertain

0.0010

D;D;D

Sift4G

Pathogenic

0.0010

D;D;D

Polyphen

1.0

.;D;.

Vest4

0.86

MVP

0.42

MPC

0.91

ClinPred

0.88

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.1

Varity_R

0.72

gMVP

0.88

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.77

dbscSNV1_RF

Benign

0.37

SpliceAI score (max)

0.31

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.31

Position offset: -1

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