chr22-32104793-G-A

Position:

chr22-32104793-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP2PP3_ModeratePP5

The NM_000343.4(SLC5A1):c.1673G>A(p.Arg558His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000291 in 1,613,610 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

SLC5A1
NM_000343.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:3U:2

Conservation

PhyloP100: 9.19

Variant links:

Genes affected

SLC5A1 (HGNC:11036): (solute carrier family 5 member 1) This gene encodes a member of the sodium-dependent glucose transporter (SGLT) family. The encoded integral membrane protein is the primary mediator of dietary glucose and galactose uptake from the intestinal lumen. Mutations in this gene have been associated with glucose-galactose malabsorption. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2012]

SLC5A1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SLC5A1. . Gene score misZ 1.833 (greater than the threshold 3.09). Trascript score misZ 3.1348 (greater than threshold 3.09). GenCC has associacion of gene with glucose-galactose malabsorption.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.934

PP5

Variant 22-32104793-G-A is Pathogenic according to our data. Variant chr22-32104793-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 127077.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=2, Pathogenic=2}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLC5A1	NM_000343.4 linkuse as main transcript	c.1673G>A	p.Arg558His	missense_variant	14/15	ENST00000266088.9	NP_000334.1
SLC5A1	NM_001256314.2 linkuse as main transcript	c.1292G>A	p.Arg431His	missense_variant	13/14		NP_001243243.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLC5A1	ENST00000266088.9 linkuse as main transcript	c.1673G>A	p.Arg558His	missense_variant	14/15	1	NM_000343.4	ENSP00000266088	P1	P13866-1
SLC5A1	ENST00000543737.2 linkuse as main transcript	c.1292G>A	p.Arg431His	missense_variant	13/14	2		ENSP00000444898		P13866-2

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

152052

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000438

AC:

AN:

251244

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135774

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:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000308

AC:

AN:

1461558

Hom.:

Cov.:

AF XY:

0.0000316

AC XY:

AN XY:

727090

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000134

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:

0.0000342

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000132

AC:

AN:

152052

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74252

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000644

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:3Uncertain:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Congenital glucose-galactose malabsorption

Pathogenic:2Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Apr 28, 2017	This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
Pathogenic, no assertion criteria provided	literature only	OMIM	Jan 01, 2011	- -
Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 11, 2023	This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 558 of the SLC5A1 protein (p.Arg558His). This variant is present in population databases (rs201799893, gnomAD 0.02%). This missense change has been observed in individual(s) with glucose-galactose malabsorption (PMID: 20486940). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 127077). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on SLC5A1 protein function. This variant disrupts the p.Arg558 amino acid residue in SLC5A1. Other variant(s) that disrupt this residue have been observed in individuals with SLC5A1-related conditions (Invitae), which suggests that this may be a clinically significant amino acid residue. For these reasons, this variant has been classified as Pathogenic. -
Uncertain significance, criteria provided, single submitter	clinical testing	Baylor Genetics	Nov 04, 2022	- -

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Dec 09, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.39

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Pathogenic

0.34

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.46

T;.

Eigen

Pathogenic

0.81

Eigen_PC

Pathogenic

0.81

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.96

D;D

M_CAP

Benign

0.055

MetaRNN

Pathogenic

0.93

D;D

MetaSVM

Uncertain

0.22

MutationAssessor

Pathogenic

3.8

H;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-4.4

D;D

REVEL

Pathogenic

0.87

Sift

Benign

0.063

T;T

Sift4G

Uncertain

0.043

D;T

Polyphen

0.98

D;.

Vest4

0.86

MVP

0.97

MPC

0.64

ClinPred

0.99

GERP RS

5.5

Varity_R

0.24

gMVP

0.71

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