chr16-31483196-T-C

Position:

• chr16-31483196-T-C

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_003041.4(SLC5A2):​c.60T>C​(p.Ile20=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00116 in 1,614,016 control chromosomes in the GnomAD database, including 24 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0064 (17 hom., cov: 32)
  • Exomes 𝑓: 0.00061 (7 hom.)
• Consequence: SLC5A2 NM_003041.4 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: -0.0310

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]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.63).
• BP6: Variant 16-31483196-T-C is Benign according to our data. Variant chr16-31483196-T-C is described in ClinVar as [Benign]. Clinvar id is 777013.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-0.031 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0064 (974/152232) while in subpopulation AFR AF= 0.0225 (934/41540). AF 95% confidence interval is 0.0213. There are 17 homozygotes in gnomad4. There are 439 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 17 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC5A2	NM_003041.4	c.60T>C	p.Ile20=	synonymous_variant	1/14	ENST00000330498.4
SLC5A2	XM_006721072.5	c.60T>C	p.Ile20=	synonymous_variant	1/13
SLC5A2	XM_024450402.2	c.60T>C	p.Ile20=	synonymous_variant	1/11
SLC5A2	NR_130783.2	n.74T>C		non_coding_transcript_exon_variant	1/12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC5A2	ENST00000330498.4	c.60T>C	p.Ile20=	synonymous_variant	1/14	1	NM_003041.4	P1
SLC5A2	ENST00000419665.6	c.60T>C	p.Ile20=	synonymous_variant, NMD_transcript_variant	1/12	1
SLC5A2	ENST00000569576.5	c.-4+128T>C		intron_variant		4
SLC5A2	ENST00000562006.1	n.59T>C		non_coding_transcript_exon_variant	1/3	3

Frequencies

GnomAD3 genomes AF: 0.00640 AC: 973 AN: 152114 Hom.: 17 Cov.: 32

Gnomad AFR AF: 0.0225

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00164

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: 0.000103

Gnomad OTH AF: 0.00432

GnomAD3 exomes AF: 0.00168 AC: 423 AN: 251380 Hom.: 5 AF XY: 0.00110 AC XY: 149 AN XY: 135908

Gnomad AFR exome AF: 0.0234

Gnomad AMR exome AF: 0.00104

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: 0.0000264

Gnomad OTH exome AF: 0.000652

GnomAD4 exome AF: 0.000610 AC: 891 AN: 1461784 Hom.: 7 Cov.: 32 AF XY: 0.000481 AC XY: 350 AN XY: 727182

Gnomad4 AFR exome AF: 0.0225

Gnomad4 AMR exome AF: 0.00114

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: 0.00000899

Gnomad4 OTH exome AF: 0.00124

GnomAD4 genome AF: 0.00640 AC: 974 AN: 152232 Hom.: 17 Cov.: 32 AF XY: 0.00590 AC XY: 439 AN XY: 74418

Gnomad4 AFR AF: 0.0225

Gnomad4 AMR AF: 0.00157

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000103

Gnomad4 OTH AF: 0.00427

Alfa AF: 0.00334 Hom.: 1

Bravo AF: 0.00696

Asia WGS AF: 0.00115 AC: 4 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 31, 2019	- -

Familial renal glucosuria Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.63
CADD	Benign	0.51
DANN	Benign	0.47

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs114050461; hg19: chr16-31494517;