3-122261995-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_000388.4(CASR):​c.960C>A​(p.Phe320Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. F320I) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CASR
NM_000388.4 missense

Scores

5
9
5

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.154
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 Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CASR. . Gene score misZ 3.1237 (greater than the threshold 3.09). Trascript score misZ 4.8257 (greater than threshold 3.09). GenCC has associacion of gene with epilepsy, autosomal dominant hypocalcemia, familial hypocalciuric hypercalcemia 1, epilepsy, idiopathic generalized, susceptibility to, 8, neonatal severe primary hyperparathyroidism, autosomal dominant hypocalcemia 1.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.853

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CASRNM_000388.4 linkuse as main transcriptc.960C>A p.Phe320Leu missense_variant 4/7 ENST00000639785.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CASRENST00000639785.2 linkuse as main transcriptc.960C>A p.Phe320Leu missense_variant 4/71 NM_000388.4 P1P41180-1
CASRENST00000498619.4 linkuse as main transcriptc.960C>A p.Phe320Leu missense_variant 4/71 P41180-2
CASRENST00000638421.1 linkuse as main transcriptc.960C>A p.Phe320Leu missense_variant 4/75 P1P41180-1
CASRENST00000490131.7 linkuse as main transcriptc.960C>A p.Phe320Leu missense_variant 3/55

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251074
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135784
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:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461884
Hom.:
0
Cov.:
34
AF XY:
0.00000138
AC XY:
1
AN XY:
727242
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.19
CADD
Benign
0.56
DANN
Uncertain
0.98
DEOGEN2
Uncertain
0.75
D;D;.;.
Eigen
Benign
-0.50
Eigen_PC
Benign
-0.64
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Uncertain
0.92
.;D;D;D
M_CAP
Uncertain
0.24
D
MetaRNN
Pathogenic
0.85
D;D;D;D
MetaSVM
Uncertain
0.00020
D
MutationAssessor
Benign
1.5
L;L;L;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Uncertain
-2.9
.;.;D;D
REVEL
Uncertain
0.62
Sift
Uncertain
0.013
.;.;D;D
Sift4G
Benign
0.17
.;.;T;T
Polyphen
1.0
D;D;.;.
Vest4
0.89, 0.89
MutPred
0.74
Loss of glycosylation at T317 (P = 0.0544);Loss of glycosylation at T317 (P = 0.0544);Loss of glycosylation at T317 (P = 0.0544);Loss of glycosylation at T317 (P = 0.0544);
MVP
0.83
MPC
1.5
ClinPred
0.82
D
GERP RS
-6.8
Varity_R
0.73
gMVP
0.89

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: rs753011255; hg19: chr3-121980842; API