rs9740

Positions:

• chr3-122286206-A-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_000388.4(CASR):​c.*1015A>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 0.269 in 152,126 control chromosomes in the GnomAD database, including 6,287 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.27 (6285 hom., cov: 31)
  • Exomes 𝑓: 0.27 (2 hom.)
• Consequence: CASR NM_000388.4 3_prime_UTR
• Clinical Significance: Benign criteria provided, single submitter B:4
• Conservation: PhyloP100: -0.379

Genes affected

CASR (HGNC:1514): (calcium sensing receptor) The protein encoded by this gene is a plasma membrane G protein-coupled receptor that senses small changes in circulating calcium concentration. The encoded protein couples this information to intracellular signaling pathways that modify parathyroid hormone secretion or renal cation handling, and thus this protein plays an essential role in maintaining mineral ion homeostasis. Mutations in this gene are a cause of familial hypocalciuric hypercalcemia, neonatal severe hyperparathyroidism, and autosomal dominant hypocalcemia. [provided by RefSeq, Aug 2017]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP6: Variant 3-122286206-A-G is Benign according to our data. Variant chr3-122286206-A-G is described in ClinVar as [Benign]. Clinvar id is 342815.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.348 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CASR	NM_000388.4	c.*1015A>G		3_prime_UTR_variant	7/7	ENST00000639785.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CASR	ENST00000639785.2	c.*1015A>G		3_prime_UTR_variant	7/7	1	NM_000388.4	P1
CASR	ENST00000498619.4	c.*1015A>G		3_prime_UTR_variant	7/7	1
CASR	ENST00000638421.1	c.*1015A>G		3_prime_UTR_variant	7/7	5		P1

Frequencies

GnomAD3 genomes AF: 0.270 AC: 40961 AN: 151960 Hom.: 6290 Cov.: 31

Gnomad AFR AF: 0.162

Gnomad AMI AF: 0.367

Gnomad AMR AF: 0.223

Gnomad ASJ AF: 0.261

Gnomad EAS AF: 0.00385

Gnomad SAS AF: 0.211

Gnomad FIN AF: 0.376

Gnomad MID AF: 0.310

Gnomad NFE AF: 0.352

Gnomad OTH AF: 0.282

GnomAD4 exome AF: 0.271 AC: 13 AN: 48 Hom.: 2 Cov.: 0 AF XY: 0.300 AC XY: 9 AN XY: 30

Gnomad4 AFR exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.308

Gnomad4 NFE exome AF: 0.188

Gnomad4 OTH exome AF: 1.00

GnomAD4 genome AF: 0.269 AC: 40944 AN: 152078 Hom.: 6285 Cov.: 31 AF XY: 0.267 AC XY: 19835 AN XY: 74316

Gnomad4 AFR AF: 0.162

Gnomad4 AMR AF: 0.222

Gnomad4 ASJ AF: 0.261

Gnomad4 EAS AF: 0.00386

Gnomad4 SAS AF: 0.210

Gnomad4 FIN AF: 0.376

Gnomad4 NFE AF: 0.352

Gnomad4 OTH AF: 0.278

Alfa AF: 0.327 Hom.: 17493

Bravo AF: 0.252

Asia WGS AF: 0.0910 AC: 317 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, single submitter

Submissions by phenotype

Autosomal dominant hypocalcemia 1 Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This 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. -

Familial hypocalciuric hypercalcemia 1 Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This 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. -

Neonatal severe primary hyperparathyroidism Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This 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. -

Familial hypoparathyroidism Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This 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	-0.82
CADD	Benign	0.89
DANN	Benign	0.67

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs9740; hg19: chr3-122005053;