rs183792071

chr15-33644304-T-Achr15-33644304-T-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001036.6(RYR3):c.3557-7T>A variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: RYR3 NM_001036.6 splice_region, splice_polypyrimidine_tract, intron
• Scores: Splicing: ADA: 0.1357
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.833

Genes affected

RYR3 (HGNC:10485): (ryanodine receptor 3) The protein encoded by this gene is a ryanodine receptor, which functions to release calcium from intracellular storage for use in many cellular processes. For example, the encoded protein is involved in skeletal muscle contraction by releasing calcium from the sarcoplasmic reticulum followed by depolarization of T-tubules. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.78).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RYR3	NM_001036.6	c.3557-7T>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000634891.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RYR3	ENST00000634891.2	c.3557-7T>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_001036.6	P4
RYR3	ENST00000389232.9	c.3557-7T>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5		A1
RYR3	ENST00000415757.7	c.3557-7T>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		2		A2
RYR3	ENST00000634418.1	c.3557-7T>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
Cadd	Benign	8.0
Dann	Benign	0.71

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.14
dbscSNV1_RF	Benign	0.23
SpliceAI score (max)		0.050		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

Other links and lift over

dbSNP: rs183792071; hg19: chr15-33936505;