rs876661338

Variant names:

• chr5-177393763-T-G
• rs876661338
• NM_003052.5:c.1006T>G

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PP3_Moderate PP5

The NM_003052.5(SLC34A1):​c.1006T>G​(p.Cys336Gly) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000684 in 1,461,816 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SLC34A1 NM_003052.5 missense, splice_region
• Scores: Splicing: ADA: 0.03160
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 4.12
• Publications: 0 publications found

Genes affected

SLC34A1 (HGNC:11019): (solute carrier family 34 member 1) Enables sodium:phosphate symporter activity. Involved in several processes, including phosphate ion homeostasis; phosphate ion transport; and response to lead ion. Located in several cellular components, including apical plasma membrane; mitotic spindle; and nuclear speck. Implicated in several diseases, including Fanconi syndrome (multiple); chronic kidney disease; hereditary hypophosphatemic rickets with hypercalciuria; hypophosphatemic nephrolithiasis/osteoporosis 1; and nephrolithiasis. [provided by Alliance of Genome Resources, Apr 2022]

SLC34A1 Gene-Disease associations (from GenCC):

• hypercalcemia, infantile, 2

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae), ClinGen
• hypophosphatemic nephrolithiasis/osteoporosis 1

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• dominant hypophosphatemia with nephrolithiasis or osteoporosis

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• primary Fanconi syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• autosomal recessive infantile hypercalcemia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• Fanconi renotubular syndrome 2

  Inheritance: AR Classification: LIMITED, NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae), ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.928
• PP5: Variant 5-177393763-T-G is Pathogenic according to our data. Variant chr5-177393763-T-G is described in ClinVar as Pathogenic. ClinVar VariationId is 234929.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003052.5. 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
	SLC34A1	NM_003052.5	MANE Select	c.1006T>G	p.Cys336Gly	missense splice_region	Exon 9 of 13	NP_003043.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC34A1	ENST00000324417.6	TSL:1 MANE Select	c.1006T>G	p.Cys336Gly	missense splice_region	Exon 9 of 13	ENSP00000321424.4	Q06495-1
	SLC34A1	ENST00000872468.1		c.1006T>G	p.Cys336Gly	missense splice_region	Exon 9 of 13	ENSP00000542527.1
	SLC34A1	ENST00000507685.5	TSL:2	n.1297T>G		splice_region non_coding_transcript_exon	Exon 7 of 10

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461816 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727202

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44722

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: 86246

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53380

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111994

Other (OTH) AF: 0.00 AC: 0 AN: 60392

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	Hypercalcemia, infantile, 2 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.37
BayesDel_addAF	Pathogenic	0.18	D
BayesDel_noAF	Uncertain	0.020
CADD	Benign	22
DANN	Benign	0.95
DEOGEN2	Pathogenic	0.82	D
Eigen	Benign	0.17
Eigen_PC	Uncertain	0.26
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Benign	0.64	T
M_CAP	Benign	0.021	T
MetaRNN	Pathogenic	0.93	D
MetaSVM	Benign	-0.93	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		4.1
PrimateAI	Uncertain	0.55	T
PROVEAN	Pathogenic	-9.9	D
REVEL	Uncertain	0.30
Sift	Benign	0.047	D
Sift4G	Benign	0.10	T
Polyphen		0.24	B
Vest4		0.86
MutPred		0.73		Gain of disorder (P = 0.01)
MVP		0.38
MPC		0.088
ClinPred		0.99	D
GERP RS		5.5
Varity_R		0.86
gMVP		0.83
Mutation Taster		=44/56	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.032
dbscSNV1_RF	Benign	0.15
SpliceAI score (max)		0.030		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: rs876661338; hg19: chr5-176820764;