Variant 19-12939143-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_004343.4(CALR):c.101C>T(p.Thr34Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,452,998 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CALR
NM_004343.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.173

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]

CALR links:

Genome browser will be placed here

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=0.13359037).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CALR	NM_004343.4 link	c.101C>T	p.Thr34Ile	missense_variant	2/9	ENST00000316448.10	NP_004334.1	P27797V9HW88

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CALR	ENST00000316448.10 link	c.101C>T	p.Thr34Ile	missense_variant	2/9	1	NM_004343.4	ENSP00000320866.4		P27797

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000419

AC:

AN:

238394

Hom.:

AF XY:

0.00

AC XY:

AN XY:

128582

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000303

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:

0.00000138

AC:

AN:

1452998

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

721964

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000231

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:

9.03e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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 submitter

clinical testing

Ambry Genetics

Aug 30, 2022

The c.101C>T (p.T34I) alteration is located in exon 2 (coding exon 2) of the CALR gene. This alteration results from a C to T substitution at nucleotide position 101, causing the threonine (T) at amino acid position 34 to be replaced by an isoleucine (I). 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

0.14

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.29

T;T

Eigen

Benign

-0.47

Eigen_PC

Benign

-0.39

FATHMM_MKL

Benign

0.29

LIST_S2

Uncertain

0.96

D;D

M_CAP

Benign

0.020

MetaRNN

Benign

0.13

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.0

L;.

PrimateAI

Benign

0.36

PROVEAN

Uncertain

-2.5

N;.

REVEL

Benign

0.058

Sift

Uncertain

0.022

D;.

Sift4G

Benign

0.086

T;D

Polyphen

0.010

B;.

Vest4

0.40

MutPred

0.37

Loss of disorder (P = 0.0705);Loss of disorder (P = 0.0705);

MVP

0.40

MPC

0.32

ClinPred

0.28

GERP RS

3.9

Varity_R

0.12

gMVP

0.55

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