rs587777528

Variant names:

• chr12-121641471-C-T
• rs587777528
• ENST00000617316.2:c.734C>T

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PP3_Moderate PP5

The ENST00000617316.2(ORAI1):​c.734C>T​(p.Pro245Leu) variant causes a missense change. 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 Pathogenic (no stars). Synonymous variant affecting the same amino acid position (i.e. P245P) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: ORAI1 ENST00000617316.2 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 6.17
• Publications: 43 publications found

Genes affected

ORAI1 (HGNC:25896): (ORAI calcium release-activated calcium modulator 1) The protein encoded by this gene is a membrane calcium channel subunit that is activated by the calcium sensor STIM1 when calcium stores are depleted. This type of channel is the primary way for calcium influx into T-cells. Defects in this gene are a cause of immune dysfunction with T-cell inactivation due to calcium entry defect type 1 (IDTICED1). [provided by RefSeq, Sep 2011]

ORAI1 Gene-Disease associations (from GenCC):

• tubular aggregate myopathy

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• myopathy, tubular aggregate, 2

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• combined immunodeficiency due to ORAI1 deficiency

  Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
• Stormorken syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.867
• PP5: Variant 12-121641471-C-T is Pathogenic according to our data. Variant chr12-121641471-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 139640.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000617316.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ORAI1	NR_186857.1		n.952C>T		non_coding_transcript_exon	Exon 2 of 2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ORAI1	ENST00000617316.2	TSL:1	c.734C>T	p.Pro245Leu	missense	Exon 3 of 3	ENSP00000482568.2
	ORAI1	ENST00000611718.1	TSL:5	n.790C>T		non_coding_transcript_exon	Exon 2 of 2
	ORAI1	ENST00000646827.1		n.932C>T		non_coding_transcript_exon	Exon 2 of 2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Myopathy, tubular aggregate, 2 Pathogenic:1

Mar 18, 2014

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.95
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.010
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.83	D
Eigen	Uncertain	0.19
Eigen_PC	Benign	0.19
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.034	D
MetaRNN	Pathogenic	0.87	D
MetaSVM	Benign	-0.79	T
MutationAssessor	Uncertain	2.6	M
PhyloP100		6.2
PrimateAI	Uncertain	0.77	T
Polyphen		0.54	P
MutPred		0.76		Gain of catalytic residue at T240 (P = 3e-04)
MVP		0.51
ClinPred		0.91	D
GERP RS		4.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.40
gMVP		0.96
Mutation Taster		=20/80	disease causing (ClinVar)

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: rs587777528; hg19: chr12-122079377;