chr8-42417683-G-C

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_001257180.2(SLC20A2):​c.*120C>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00049 in 1,093,978 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0021 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00022 ( 1 hom. )

Consequence

SLC20A2
NM_001257180.2 3_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.14
Variant links:
Genes affected
SLC20A2 (HGNC:10947): (solute carrier family 20 member 2) This gene encodes a member of the inorganic phosphate transporter family. The encoded protein is a type 3 sodium-dependent phosphate symporter that plays an important role in phosphate homeostasis by mediating cellular phosphate uptake. The encoded protein also confers susceptibility to viral infection as a gamma-retroviral receptor. Mutations in this gene may play a role in familial idiopathic basal ganglia calcification. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Mar 2012]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 8-42417683-G-C is Benign according to our data. Variant chr8-42417683-G-C is described in ClinVar as [Benign]. Clinvar id is 908432.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00215 (327/152292) while in subpopulation AFR AF= 0.00753 (313/41566). AF 95% confidence interval is 0.00684. There are 1 homozygotes in gnomad4. There are 149 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 327 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC20A2NM_001257180.2 linkuse as main transcriptc.*120C>G 3_prime_UTR_variant 11/11 ENST00000520262.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC20A2ENST00000520262.6 linkuse as main transcriptc.*120C>G 3_prime_UTR_variant 11/112 NM_001257180.2 P1
SLC20A2ENST00000342228.7 linkuse as main transcriptc.*120C>G 3_prime_UTR_variant 11/111 P1

Frequencies

GnomAD3 genomes
AF:
0.00216
AC:
328
AN:
152174
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00758
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000654
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:
0.00
Gnomad OTH
AF:
0.00191
GnomAD4 exome
AF:
0.000222
AC:
209
AN:
941686
Hom.:
1
Cov.:
12
AF XY:
0.000189
AC XY:
90
AN XY:
475516
show subpopulations
Gnomad4 AFR exome
AF:
0.00794
Gnomad4 AMR exome
AF:
0.000281
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000158
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000876
Gnomad4 OTH exome
AF:
0.000212
GnomAD4 genome
AF:
0.00215
AC:
327
AN:
152292
Hom.:
1
Cov.:
32
AF XY:
0.00200
AC XY:
149
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.00753
Gnomad4 AMR
AF:
0.000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00189
Alfa
AF:
0.000902
Hom.:
0
Bravo
AF:
0.00250
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Idiopathic basal ganglia calcification 1 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
7.7
DANN
Benign
0.68

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs569568894; hg19: chr8-42275201; API