22-32218591-A-G

Variant names:

• chr22-32218591-A-G
• rs1398391200
• NM_014227.3:c.1903T>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_014227.3(SLC5A4):​c.1903T>C​(p.Ser635Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,870 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: SLC5A4 NM_014227.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.206
• Publications: 0 publications found

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

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.12225294).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014227.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC5A4	NM_014227.3	MANE Select	c.1903T>C	p.Ser635Pro	missense	Exon 15 of 15	NP_055042.1	Q9NY91
	SLC5A4-AS1	NR_149072.1		n.274+11315A>G		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC5A4	ENST00000266086.6	TSL:1 MANE Select	c.1903T>C	p.Ser635Pro	missense	Exon 15 of 15	ENSP00000266086.3	Q9NY91
	SLC5A4-AS1	ENST00000434942.2	TSL:3	n.225-10499A>G		intron	N/A
	SLC5A4-AS1	ENST00000452181.2	TSL:5	n.274+11315A>G		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461870 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727238

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111992

Other (OTH) AF: 0.00 AC: 0 AN: 60396

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.00000000770867), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 31

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.072
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.41
CADD	Benign	14
DANN	Uncertain	0.98
DEOGEN2	Benign	0.0076	T
Eigen	Benign	-0.73
Eigen_PC	Benign	-0.67
FATHMM_MKL	Benign	0.17	N
LIST_S2	Benign	0.48	T
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-0.74	T
MutationAssessor	Benign	0.20	N
PhyloP100		0.21
PrimateAI	Benign	0.37	T
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.18
Sift	Benign	0.042	D
Sift4G	Benign	0.14	T
Polyphen		0.050	B
Vest4		0.13
MutPred		0.53		Gain of glycosylation at S635 (P = 0.0136)
MVP		0.45
MPC		0.20
ClinPred		0.23	T
GERP RS		3.2
Varity_R		0.20
gMVP		0.64
Mutation Taster		=95/5	polymorphism

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

Other links and lift over

dbSNP: rs1398391200; hg19: chr22-32614578;