chr5-177385762-G-C

Position:

• chr5-177385762-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_003052.5(SLC34A1):​c.21G>C​(p.Arg7Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC34A1 NM_003052.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0510

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09129602).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC34A1	NM_003052.5	c.21G>C	p.Arg7Ser	missense_variant	2/13	ENST00000324417.6
SLC34A1	NM_001167579.2	c.21G>C	p.Arg7Ser	missense_variant	2/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC34A1	ENST00000324417.6	c.21G>C	p.Arg7Ser	missense_variant	2/13	1	NM_003052.5	P1
SLC34A1	ENST00000512593.5	c.21G>C	p.Arg7Ser	missense_variant	2/9	2
SLC34A1	ENST00000504577.5	c.21G>C	p.Arg7Ser	missense_variant	2/4	4
SLC34A1	ENST00000507685.5	n.105G>C		non_coding_transcript_exon_variant	2/10	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 28, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with SLC34A1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces arginine, which is basic and polar, with serine, which is neutral and polar, at codon 7 of the SLC34A1 protein (p.Arg7Ser). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.088	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	17
DANN	Benign	0.96
DEOGEN2	Benign	0.28	.;.;T
Eigen	Benign	-0.72
Eigen_PC	Benign	-0.70
FATHMM_MKL	Benign	0.38	N
LIST_S2	Benign	0.79	T;T;T
M_CAP	Benign	0.067	D
MetaRNN	Benign	0.091	T;T;T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	0.90	.;L;L
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.45	T
PROVEAN	Pathogenic	-5.3	D;N;N
REVEL	Benign	0.079
Sift	Uncertain	0.0040	D;D;D
Sift4G	Uncertain	0.023	D;D;D
Polyphen		0.044	.;.;B
Vest4		0.54, 0.52
MutPred		0.20		Gain of phosphorylation at R7 (P = 0.0558);Gain of phosphorylation at R7 (P = 0.0558);Gain of phosphorylation at R7 (P = 0.0558);
MVP		0.49
MPC		0.090
ClinPred		0.67	D
GERP RS		0.31
Varity_R		0.11
gMVP		0.66

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-176812763;