Genetic Variant SLC34A3:p.Ala314Ala (chr9-137234125-G-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001177316.2(SLC34A3):c.942G>A(p.Ala314Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000227 in 1,588,694 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. A314A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

SLC34A3
NM_001177316.2 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.52

Publications

3 publications found

Variant links:

Genes affected

SLC34A3 (HGNC:20305): (solute carrier family 34 member 3) This gene encodes a member of SLC34A transporter family of proteins, and is expressed primarily in the kidney. It is involved in transporting phosphate into cells via sodium cotransport in the renal brush border membrane, and contributes to the maintenance of inorganic phosphate concentration in the kidney. Mutations in this gene are associated with hereditary hypophosphatemic rickets with hypercalciuria. Alternatively spliced transcript variants varying in the 5' UTR have been found for this gene.[provided by RefSeq, Apr 2010]

SLC34A3 Gene-Disease associations (from GenCC):

hereditary hypophosphatemic rickets with hypercalciuria
Inheritance: SD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)

SLC34A3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC34A3	NM_001177316.2 link	c.942G>A	p.Ala314Ala	synonymous_variant	Exon 10 of 13	ENST00000673835.1	NP_001170787.2	Q8N130

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SLC34A3	ENST00000673835.1 link	c.942G>A	p.Ala314Ala	synonymous_variant	Exon 10 of 13		NM_001177316.2	ENSP00000501114.1	Q8N130
SLC34A3	ENST00000361134.2 link	c.942G>A	p.Ala314Ala	synonymous_variant	Exon 10 of 13	2		ENSP00000355353.2	Q8N130
SLC34A3	ENST00000538474.5 link	c.942G>A	p.Ala314Ala	synonymous_variant	Exon 10 of 13	5		ENSP00000442397.1	Q8N130
SLC34A3	ENST00000673865.1 link	c.942G>A	p.Ala314Ala	synonymous_variant	Exon 10 of 10			ENSP00000501101.1	A0A669KB63

Frequencies

GnomAD3 genomes

AF:

0.0000333

AC:

AN:

150068

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000247

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000591

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000320

AC:

AN:

218422

AF XY:

0.0000333

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000590

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000503

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000215

AC:

AN:

1438626

Hom.:

Cov.:

AF XY:

0.0000210

AC XY:

AN XY:

715092

show subpopulations

African (AFR)

AF:

0.0000300

AC:

AN:

33312

American (AMR)

AF:

0.00

AC:

AN:

43746

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25894

East Asian (EAS)

AF:

0.00

AC:

AN:

39166

South Asian (SAS)

AF:

0.0000236

AC:

AN:

84584

European-Finnish (FIN)

AF:

0.00

AC:

AN:

39924

Middle Eastern (MID)

AF:

0.000203

AC:

AN:

4924

European-Non Finnish (NFE)

AF:

0.0000226

AC:

AN:

1107334

Other (OTH)

AF:

0.0000335

AC:

AN:

59742

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000333

AC:

AN:

150068

Hom.:

Cov.:

AF XY:

0.0000137

AC XY:

AN XY:

73128

show subpopulations

African (AFR)

AF:

0.0000247

AC:

AN:

40504

American (AMR)

AF:

0.00

AC:

AN:

15080

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5060

South Asian (SAS)

AF:

0.00

AC:

AN:

4748

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10270

Middle Eastern (MID)

AF:

0.00

AC:

AN:

312

European-Non Finnish (NFE)

AF:

0.0000591

AC:

AN:

67662

Other (OTH)

AF:

0.00

AC:

AN:

2052

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000367

Hom.:

Bravo

AF:

0.0000302

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.77

CADD

Benign

(source)

DANN

Benign

0.59

PhyloP100

-1.5

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.88

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.88

Position offset: 2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over