NM_001036.6:c.789T>C

Variant names:

• chr15-33548178-T-C
• rs758671481
• NM_001036.6:c.789T>C

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001036.6(RYR3):​c.789T>C​(p.Leu263Leu) variant causes a synonymous 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L263L) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: RYR3 NM_001036.6 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.153
• Publications: 2 publications found

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]

RYR3 Gene-Disease associations (from GenCC):

• genetic developmental and epileptic encephalopathy

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen, G2P
• congenital myopathy

  Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.69).
• BP7: Synonymous conserved (PhyloP=0.153 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001036.6. 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
	RYR3	NM_001036.6	MANE Select	c.789T>C	p.Leu263Leu	synonymous	Exon 9 of 104	NP_001027.3
	RYR3	NM_001243996.4		c.789T>C	p.Leu263Leu	synonymous	Exon 9 of 103	NP_001230925.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RYR3	ENST00000634891.2	TSL:1 MANE Select	c.789T>C	p.Leu263Leu	synonymous	Exon 9 of 104	ENSP00000489262.1
	RYR3	ENST00000389232.9	TSL:5	c.789T>C	p.Leu263Leu	synonymous	Exon 9 of 104	ENSP00000373884.5
	RYR3	ENST00000415757.7	TSL:2	c.789T>C	p.Leu263Leu	synonymous	Exon 9 of 103	ENSP00000399610.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.69
CADD	Benign	6.6
DANN	Benign	0.77
PhyloP100		0.15

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs758671481; hg19: chr15-33840379;