11-4083323-C-G

Variant names:

• chr11-4083323-C-G
• rs200738706
• NM_001382567.1:c.1299C>G

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001382567.1(STIM1):​c.1299C>G​(p.Ile433Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. I433I) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 34)
• Consequence: STIM1 NM_001382567.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -2.46
• Publications: 0 publications found

Genes affected

STIM1 (HGNC:11386): (stromal interaction molecule 1) This gene encodes a type 1 transmembrane protein that mediates Ca2+ influx after depletion of intracellular Ca2+ stores by gating of store-operated Ca2+ influx channels (SOCs). It is one of several genes located in the imprinted gene domain of 11p15.5, an important tumor-suppressor gene region. Alterations in this region have been associated with the Beckwith-Wiedemann syndrome, Wilms tumor, rhabdomyosarcoma, adrenocrotical carcinoma, and lung, ovarian, and breast cancer. This gene may play a role in malignancies and disease that involve this region, as well as early hematopoiesis, by mediating attachment to stromal cells. Mutations in this gene are associated with fatal classic Kaposi sarcoma, immunodeficiency due to defects in store-operated calcium entry (SOCE) in fibroblasts, ectodermal dysplasia and tubular aggregate myopathy. This gene is oriented in a head-to-tail configuration with the ribonucleotide reductase 1 gene (RRM1), with the 3' end of this gene situated 1.6 kb from the 5' end of the RRM1 gene. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2013]

STIM1 Gene-Disease associations (from GenCC):

• myopathy, tubular aggregate, 1

  Inheritance: AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
• Stormorken syndrome

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
• tubular aggregate myopathy

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• combined immunodeficiency due to STIM1 deficiency

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.821

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STIM1	NM_001382567.1	c.1299C>G	p.Ile433Met	missense_variant	Exon 10 of 13	ENST00000526596.2	NP_001369496.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STIM1	ENST00000526596.2	c.1299C>G	p.Ile433Met	missense_variant	Exon 10 of 13	5	NM_001382567.1	ENSP00000433266.2

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 34

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Nov 26, 2019

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Not observed in large population cohorts (Lek et al., 2016); Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.31
BayesDel_addAF	Pathogenic	0.32	D
BayesDel_noAF	Pathogenic	0.22
CADD	Benign	10
DANN	Uncertain	0.98
DEOGEN2	Pathogenic	0.96	D;D;.;D
Eigen	Benign	-0.78
Eigen_PC	Benign	-0.91
FATHMM_MKL	Benign	0.091	N
LIST_S2	Uncertain	0.96	D;D;D;D
M_CAP	Uncertain	0.18	D
MetaRNN	Pathogenic	0.82	D;D;D;D
MetaSVM	Benign	-0.33	T
MutationAssessor	Benign	1.5	L;.;L;.
PhyloP100		-2.5
PrimateAI	Uncertain	0.67	T
PROVEAN	Uncertain	-2.7	D;.;D;D
REVEL	Uncertain	0.63
Sift	Pathogenic	0.0	D;.;D;D
Sift4G	Pathogenic	0.0	D;D;D;D
Polyphen		1.0	D;.;.;.
Vest4		0.97
MutPred		0.46		Gain of catalytic residue at I433 (P = 0.0099);Gain of catalytic residue at I433 (P = 0.0099);Gain of catalytic residue at I433 (P = 0.0099);.;
MVP		0.96
MPC		1.2
ClinPred		0.96	D
GERP RS		-6.2
Varity_R		0.88
gMVP		0.94
Mutation Taster		=51/49	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: rs200738706; hg19: chr11-4104553;