19-12939511-G-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_004343.4(CALR):​c.277G>A​(p.Val93Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000958 in 1,461,116 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

CALR
NM_004343.4 missense

Scores

3
9
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.26
Variant links:
Genes affected
CALR (HGNC:1455): (calreticulin) Calreticulin is a highly conserved chaperone protein which resides primarily in the endoplasmic reticulum, and is involved in a variety of cellular processes, among them, cell adhesion. Additionally, it functions in protein folding quality control and calcium homeostasis. Calreticulin is also found in the nucleus, suggesting that it may have a role in transcription regulation. Systemic lupus erythematosus is associated with increased autoantibody titers against calreticulin. Recurrent mutations in calreticulin have been linked to various neoplasms, including the myeloproliferative type.[provided by RefSeq, May 2020]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.767
BS2
High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CALRNM_004343.4 linkuse as main transcriptc.277G>A p.Val93Met missense_variant 3/9 ENST00000316448.10 NP_004334.1 P27797V9HW88

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CALRENST00000316448.10 linkuse as main transcriptc.277G>A p.Val93Met missense_variant 3/91 NM_004343.4 ENSP00000320866.4 P27797

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000517
AC:
13
AN:
251490
Hom.:
0
AF XY:
0.0000589
AC XY:
8
AN XY:
135916
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000376
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461116
Hom.:
0
Cov.:
32
AF XY:
0.0000110
AC XY:
8
AN XY:
726848
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000313
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.0000151
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 30, 2022The c.277G>A (p.V93M) alteration is located in exon 3 (coding exon 3) of the CALR gene. This alteration results from a G to A substitution at nucleotide position 277, causing the valine (V) at amino acid position 93 to be replaced by a methionine (M). 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
Uncertain
0.37
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.19
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.35
T
Eigen
Uncertain
0.51
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Benign
0.050
D
MetaRNN
Pathogenic
0.77
D
MetaSVM
Benign
-0.49
T
MutationAssessor
Pathogenic
3.5
H
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-2.1
N
REVEL
Uncertain
0.42
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0030
D
Polyphen
1.0
D
Vest4
0.62
MutPred
0.67
Loss of ubiquitination at K98 (P = 0.2139);
MVP
0.79
MPC
0.98
ClinPred
0.86
D
GERP RS
2.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.32
gMVP
0.68

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: rs370869315; hg19: chr19-13050325; COSMIC: COSV57119631; COSMIC: COSV57119631; API