rs200771541

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 1P and 3B. PP2BP4_ModerateBP6

The NM_000388.4(CASR):​c.1091C>A​(p.Ala364Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000818 in 1,614,042 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000089 ( 0 hom. )

Consequence

CASR
NM_000388.4 missense

Scores

1
18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 2.73
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP2
Missense variant in the CASR gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 114 curated pathogenic missense variants (we use a threshold of 10). The gene has 10 curated benign missense variants. Gene score misZ: 3.1237 (above the threshold of 3.09). Trascript score misZ: 4.8257 (above the threshold of 3.09). GenCC associations: The gene is linked to epilepsy, autosomal dominant hypocalcemia, familial hypocalciuric hypercalcemia 1, epilepsy, idiopathic generalized, susceptibility to, 8, neonatal severe primary hyperparathyroidism, autosomal dominant hypocalcemia 1.
BP4
Computational evidence support a benign effect (MetaRNN=0.11090118).
BP6
Variant 3-122262126-C-A is Benign according to our data. Variant chr3-122262126-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 463891.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CASRNM_000388.4 linkc.1091C>A p.Ala364Glu missense_variant Exon 4 of 7 ENST00000639785.2 NP_000379.3 P41180-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CASRENST00000639785.2 linkc.1091C>A p.Ala364Glu missense_variant Exon 4 of 7 1 NM_000388.4 ENSP00000491584.2 P41180-1
CASRENST00000498619.4 linkc.1091C>A p.Ala364Glu missense_variant Exon 4 of 7 1 ENSP00000420194.1 P41180-2
CASRENST00000638421.1 linkc.1091C>A p.Ala364Glu missense_variant Exon 4 of 7 5 ENSP00000492190.1 P41180-1
CASRENST00000490131.7 linkc.1091C>A p.Ala364Glu missense_variant Exon 3 of 5 5 ENSP00000418685.2 A0A1X7SBX3

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152156
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251380
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135846
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000889
AC:
130
AN:
1461886
Hom.:
0
Cov.:
34
AF XY:
0.0000825
AC XY:
60
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000115
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152156
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74314
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Nephrolithiasis/nephrocalcinosis Uncertain:1
Mar 21, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.A364E variant (also known as c.1091C>A), located in coding exon 3 of the CASR gene, results from a C to A substitution at nucleotide position 1091. The alanine at codon 364 is replaced by glutamic acid, an amino acid with dissimilar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. In addition, the evidence for the gene-disease relationship is limited for pancreatitis and cancer predisposition; therefore, the clinical significance of this variant for CASR-related pancreatitis and cancer predisposition is unclear. Based on the available evidence, the clinical significance of this alteration remains unclear. -

Autosomal dominant hypocalcemia 1;C0342637:Familial hypocalciuric hypercalcemia 1;C1832615:Neonatal severe primary hyperparathyroidism;C2752062:Epilepsy, idiopathic generalized, susceptibility to, 8 Uncertain:1
Mar 05, 2022
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Autosomal dominant hypocalcemia 1;C1809471:Familial hypocalciuric hypercalcemia Benign:1
Aug 19, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.076
BayesDel_addAF
Benign
-0.075
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
5.1
DANN
Benign
0.47
DEOGEN2
Benign
0.33
T;T;.;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-0.92
FATHMM_MKL
Benign
0.55
D
LIST_S2
Benign
0.65
.;T;T;T
M_CAP
Benign
0.057
D
MetaRNN
Benign
0.11
T;T;T;T
MetaSVM
Benign
-0.74
T
MutationAssessor
Benign
-0.28
N;N;N;.
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-0.61
.;.;N;N
REVEL
Uncertain
0.34
Sift
Benign
0.60
.;.;T;T
Sift4G
Benign
0.88
.;.;T;T
Polyphen
0.025
B;B;.;.
Vest4
0.30, 0.29
MutPred
0.51
Gain of disorder (P = 0.0233);Gain of disorder (P = 0.0233);Gain of disorder (P = 0.0233);Gain of disorder (P = 0.0233);
MVP
0.82
MPC
0.74
ClinPred
0.056
T
GERP RS
3.2
Varity_R
0.12
gMVP
0.59

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs200771541; hg19: chr3-121980973; API