16-31490200-G-T

Position:

• chr16-31490200-G-T

Variant summary

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

The NM_003041.4(SLC5A2):​c.1762G>T​(p.Gly588Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: SLC5A2 NM_003041.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.49

Genes affected

SLC5A2 (HGNC:11037): (solute carrier family 5 member 2) This gene encodes a member of the sodium glucose cotransporter family which are sodium-dependent glucose transport proteins. The encoded protein is the major cotransporter involved in glucose reabsorption in the kidney. Mutations in this gene are associated with renal glucosuria. Two transcript variants, one protein-coding and one not, have been found for this gene. [provided by RefSeq, Feb 2015]

RUSF1 (HGNC:25848): (RUS family member 1) This gene encodes a putative transmembrane protein containing a conserved DUF647 domain that may be involved in protein-protein interaction. The encoded protein is related to a plant protein that participates in ultraviolet B light-sensing during root morphogenesis. [provided by RefSeq, Feb 2013]

SLC5A2 (HGNC:):

ACMG classification

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/exons	MANE	Protein	UniProt
SLC5A2	NM_003041.4	c.1762G>T	p.Gly588Trp	missense_variant	13/14	ENST00000330498.4	NP_003032.1
RUSF1	NM_022744.4	c.*635C>A		3_prime_UTR_variant	13/13	ENST00000327237.7	NP_073581.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLC5A2	ENST00000330498.4	c.1762G>T	p.Gly588Trp	missense_variant	13/14	1	NM_003041.4	ENSP00000327943.3
RUSF1	ENST00000327237	c.*635C>A		3_prime_UTR_variant	13/13	1	NM_022744.4	ENSP00000317579.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 25, 2024

The c.1762G>T (p.G588W) alteration is located in exon 13 (coding exon 13) of the SLC5A2 gene. This alteration results from a G to T substitution at nucleotide position 1762, causing the glycine (G) at amino acid position 588 to be replaced by a tryptophan (W). 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	Benign	0.18
BayesDel_addAF	Uncertain	0.065	T
BayesDel_noAF	Benign	-0.14
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.56	D
Eigen	Uncertain	0.46
Eigen_PC	Uncertain	0.46
FATHMM_MKL	Uncertain	0.85	D
LIST_S2	Benign	0.74	T
M_CAP	Pathogenic	0.35	D
MetaRNN	Uncertain	0.66	D
MetaSVM	Uncertain	0.37	D
MutationAssessor	Benign	0.34	N
PrimateAI	Benign	0.44	T
PROVEAN	Uncertain	-2.6	D
REVEL	Uncertain	0.43
Sift	Uncertain	0.0080	D
Sift4G	Uncertain	0.0090	D
Polyphen		0.98	D
Vest4		0.54
MutPred		0.33		Gain of solvent accessibility (P = 0.019);
MVP		0.92
MPC		0.27
ClinPred		0.90	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.6
Varity_R		0.094
gMVP		0.51

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: rs2082550397; hg19: chr16-31501521;