22-32224400-C-A

Variant names:

• chr22-32224400-C-A
• rs370978314
• NM_014227.3:c.1532G>T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_014227.3(SLC5A4):​c.1532G>T​(p.Cys511Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,370 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 Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SLC5A4 NM_014227.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.72

Genes affected

SLC5A4 (HGNC:11039): (solute carrier family 5 member 4) Predicted to enable glucose:sodium symporter activity and proton transmembrane transporter activity. Predicted to be involved in sodium ion transport. Predicted to act upstream of or within proton transmembrane transport. Predicted to be active in plasma membrane. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

SLC5A4-AS1 (HGNC:53163): (SLC5A4 antisense RNA 1)

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.975

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC5A4	NM_014227.3	c.1532G>T	p.Cys511Phe	missense_variant	Exon 13 of 15	ENST00000266086.6	NP_055042.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC5A4	ENST00000266086.6	c.1532G>T	p.Cys511Phe	missense_variant	Exon 13 of 15	1	NM_014227.3	ENSP00000266086.3
SLC5A4-AS1	ENST00000434942.2	n.225-4690C>A		intron_variant	Intron 2 of 4	3
SLC5A4-AS1	ENST00000452181.2	n.274+17124C>A		intron_variant	Intron 2 of 4	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461370 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727006

Gnomad4 AFR exome AF: 0.0000299

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.00 AC: 0

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Sep 06, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1532G>T (p.C511F) alteration is located in exon 13 (coding exon 13) of the SLC5A4 gene. This alteration results from a G to T substitution at nucleotide position 1532, causing the cysteine (C) at amino acid position 511 to be replaced by a phenylalanine (F). 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	0.76
BayesDel_addAF	Pathogenic	0.38	D
BayesDel_noAF	Pathogenic	0.30
CADD	Uncertain	25
DANN	Uncertain	0.98
DEOGEN2	Benign	0.24	T
Eigen	Uncertain	0.37
Eigen_PC	Benign	0.17
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.037	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Uncertain	0.16	D
MutationAssessor	Pathogenic	3.9	H
PrimateAI	Uncertain	0.60	T
PROVEAN	Pathogenic	-10	D
REVEL	Uncertain	0.63
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.95
MVP		0.85
MPC		0.79
ClinPred		1.0	D
GERP RS		3.9
Varity_R		0.95
gMVP		0.81

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: rs370978314; hg19: chr22-32620387;