Genetic Variant CALCR:p.Gly436Cys (chr7-93426475-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001742.4(CALCR):c.1306G>T(p.Gly436Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,461,552 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

CALCR
NM_001742.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.228

Variant links:

Genes affected

CALCR (HGNC:1440): (calcitonin receptor) This gene encodes a high affinity receptor for the peptide hormone calcitonin and belongs to a subfamily of seven transmembrane-spanning G protein-coupled receptors. The encoded protein is involved in maintaining calcium homeostasis and in regulating osteoclast-mediated bone resorption. Polymorphisms in this gene have been associated with variations in bone mineral density and onset of osteoporosis. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]

CALCR links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.18861338).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CALCR	NM_001742.4 link	c.1306G>T	p.Gly436Cys	missense_variant	Exon 14 of 14	ENST00000426151.7	NP_001733.1	P30988-2
CALCR	NM_001164737.3 link	c.1354G>T	p.Gly452Cys	missense_variant	Exon 16 of 16		NP_001158209.2	P30988-1
CALCR	NM_001164738.2 link	c.1306G>T	p.Gly436Cys	missense_variant	Exon 13 of 13		NP_001158210.1	P30988-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CALCR	ENST00000426151.7 link	c.1306G>T	p.Gly436Cys	missense_variant	Exon 14 of 14	1	NM_001742.4	ENSP00000389295.1		P30988-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000795

AC:

AN:

251470

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135916

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:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1461552

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727118

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:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 26, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1306G>T (p.G436C) alteration is located in exon 14 (coding exon 12) of the CALCR gene. This alteration results from a G to T substitution at nucleotide position 1306, causing the glycine (G) at amino acid position 436 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.51

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.014

.;T;T;T;T

Eigen

Benign

-0.28

Eigen_PC

Benign

-0.45

FATHMM_MKL

Benign

0.18

LIST_S2

Benign

0.56

T;.;.;T;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.19

T;T;T;T;T

MetaSVM

Benign

-0.99

PrimateAI

Benign

0.39

PROVEAN

Benign

-0.010

N;N;N;.;N

REVEL

Benign

0.10

Sift

Uncertain

0.019

D;D;D;.;D

Sift4G

Uncertain

0.048

D;T;T;.;T

Vest4

0.12

MutPred

0.59

.;.;Loss of catalytic residue at G436 (P = 0.0759);.;Loss of catalytic residue at G436 (P = 0.0759);

MVP

0.56

MPC

0.65

ClinPred

0.33

GERP RS

2.3

gMVP

0.41

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over