chr19-12939156-C-G

Variant names:

• chr19-12939156-C-G
• rs546693081
• NM_004343.4:c.114C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_004343.4(CALR):​c.114C>G​(p.Ile38Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 14/22 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)
• Consequence: CALR NM_004343.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.784
• Publications: 0 publications found

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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004343.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CALR	NM_004343.4	MANE Select	c.114C>G	p.Ile38Met	missense	Exon 2 of 9	NP_004334.1	P27797

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CALR	ENST00000316448.10	TSL:1 MANE Select	c.114C>G	p.Ile38Met	missense	Exon 2 of 9	ENSP00000320866.4	P27797
	CALR	ENST00000957023.1		c.114C>G	p.Ile38Met	missense	Exon 2 of 9	ENSP00000627082.1
	CALR	ENST00000929790.1		c.114C>G	p.Ile38Met	missense	Exon 2 of 9	ENSP00000599849.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.079
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.41
CADD	Benign	15
DANN	Uncertain	0.99
DEOGEN2	Benign	0.36	T
Eigen	Benign	-0.24
Eigen_PC	Benign	-0.42
FATHMM_MKL	Benign	0.086	N
LIST_S2	Uncertain	0.93	D
M_CAP	Benign	0.058	D
MetaRNN	Uncertain	0.56	D
MetaSVM	Benign	-0.71	T
MutationAssessor	Pathogenic	3.3	M
PhyloP100		-0.78
PrimateAI	Benign	0.25	T
PROVEAN	Benign	-2.0	N
REVEL	Benign	0.28
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0010	D
Polyphen		0.95	P
Vest4		0.14
MutPred		0.76		Gain of disorder (P = 0.0434)
MVP		0.72
MPC		0.88
ClinPred		0.99	D
GERP RS		-4.3
Varity_R		0.32
gMVP		0.67
Mutation Taster		=76/24	polymorphism

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

Other links and lift over

dbSNP: rs546693081; hg19: chr19-13049970;