rs200039241

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4BP6BS1

The NM_000388.4(CASR):​c.854G>A​(p.Arg285Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000297 in 1,614,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R285W) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

CASR
NM_000388.4 missense

Scores

5
14

Clinical Significance

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

Conservation

PhyloP100: 3.02
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 -5 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=0.27199456).
BP6
Variant 3-122261889-G-A is Benign according to our data. Variant chr3-122261889-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 237773.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=2}.
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000092 (14/152190) while in subpopulation AMR AF= 0.00072 (11/15282). AF 95% confidence interval is 0.000403. There are 0 homozygotes in gnomad4. There are 11 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CASRNM_000388.4 linkc.854G>A p.Arg285Gln 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.854G>A p.Arg285Gln missense_variant Exon 4 of 7 1 NM_000388.4 ENSP00000491584.2 P41180-1
CASRENST00000498619.4 linkc.854G>A p.Arg285Gln missense_variant Exon 4 of 7 1 ENSP00000420194.1 P41180-2
CASRENST00000638421.1 linkc.854G>A p.Arg285Gln missense_variant Exon 4 of 7 5 ENSP00000492190.1 P41180-1
CASRENST00000490131.7 linkc.854G>A p.Arg285Gln missense_variant Exon 3 of 5 5 ENSP00000418685.2 A0A1X7SBX3

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152190
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
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:
0.0000438
AC:
11
AN:
251298
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135846
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000260
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000233
AC:
34
AN:
1461890
Hom.:
0
Cov.:
34
AF XY:
0.0000248
AC XY:
18
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000201
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:
0.0000198
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000920
AC:
14
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.000148
AC XY:
11
AN XY:
74348
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000720
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
Bravo
AF:
0.0000831
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

Autosomal dominant hypocalcemia 1;C0342637:Familial hypocalciuric hypercalcemia 1;C1832615:Neonatal severe primary hyperparathyroidism;C2752062:Epilepsy, idiopathic generalized, susceptibility to, 8 Uncertain:1
Dec 24, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Uncertain:1
Nov 30, 2015
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nephrolithiasis/nephrocalcinosis Benign:1
Aug 10, 2022
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Autosomal dominant hypocalcemia 1;C1809471:Familial hypocalciuric hypercalcemia Benign:1
Apr 29, 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
0.083
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.26
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.39
T;T;.;.
Eigen
Benign
0.047
Eigen_PC
Benign
0.15
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.89
.;D;D;D
M_CAP
Benign
0.067
D
MetaRNN
Benign
0.27
T;T;T;T
MetaSVM
Benign
-0.40
T
MutationAssessor
Benign
1.7
L;L;L;.
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-1.3
.;.;N;N
REVEL
Uncertain
0.31
Sift
Benign
0.17
.;.;T;T
Sift4G
Benign
0.43
.;.;T;T
Polyphen
0.67
P;P;.;.
Vest4
0.31, 0.27
MutPred
0.47
Loss of MoRF binding (P = 0.0436);Loss of MoRF binding (P = 0.0436);Loss of MoRF binding (P = 0.0436);Loss of MoRF binding (P = 0.0436);
MVP
0.94
MPC
0.70
ClinPred
0.35
T
GERP RS
4.4
Varity_R
0.39
gMVP
0.67

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: rs200039241; hg19: chr3-121980736; API