chr19-38455203-T-C
Variant names: 
Variant summary
Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The NM_000540.3(RYR1):c.1441-32T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00262 in 1,613,248 control chromosomes in the GnomAD database, including 104 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).
Frequency
 Genomes: 𝑓 0.015   (  55   hom.,  cov: 31) 
 Exomes 𝑓:  0.0014   (  49   hom.  ) 
Consequence
 RYR1
NM_000540.3 intron
NM_000540.3 intron
Scores
 2
Clinical Significance
Conservation
 PhyloP100:  -0.120  
Publications
0 publications found 
Genes affected
 RYR1  (HGNC:10483):  (ryanodine receptor 1) This gene encodes a ryanodine receptor found in skeletal muscle. The encoded protein functions as a calcium release channel in the sarcoplasmic reticulum but also serves to connect the sarcoplasmic reticulum and transverse tubule. Mutations in this gene are associated with malignant hyperthermia susceptibility, central core disease, and minicore myopathy with external ophthalmoplegia. Alternatively spliced transcripts encoding different isoforms have been described. [provided by RefSeq, Jul 2008] 
RYR1 Gene-Disease associations (from GenCC):
- malignant hyperthermia, susceptibility to, 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Genomics England PanelApp, Ambry Genetics
- congenital multicore myopathy with external ophthalmoplegiaInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp
- RYR1-related myopathyInheritance: AR, AD Classification: DEFINITIVE Submitted by: ClinGen
- central core myopathyInheritance: AD, AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
- King-Denborough syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- malignant hyperthermia of anesthesiaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- autosomal recessive centronuclear myopathyInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- benign Samaritan congenital myopathyInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- congenital myopathy with myasthenic-like onsetInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- lethal multiple pterygium syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Genome browser will be placed here
ACMG classification
Classification was made for transcript
Our verdict: Benign. The variant received -20 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86). 
BP6
Variant 19-38455203-T-C is Benign according to our data. Variant chr19-38455203-T-C is described in ClinVar as Benign. ClinVar VariationId is 256447.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. 
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0145 (2208/152256) while in subpopulation AFR AF = 0.0501 (2081/41532). AF 95% confidence interval is 0.0483. There are 55 homozygotes in GnomAd4. There are 1034 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check. 
BS2
High Homozygotes in GnomAd4 at 55 AR,AD gene
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes  0.0145  AC: 2204AN: 152138Hom.:  55  Cov.: 31 show subpopulations 
GnomAD3 genomes 
 AF: 
AC: 
2204
AN: 
152138
Hom.: 
Cov.: 
31
Gnomad AFR 
 AF: 
Gnomad AMI 
 AF: 
Gnomad AMR 
 AF: 
Gnomad ASJ 
 AF: 
Gnomad EAS 
 AF: 
Gnomad SAS 
 AF: 
Gnomad FIN 
 AF: 
Gnomad MID 
 AF: 
Gnomad NFE 
 AF: 
Gnomad OTH 
 AF: 
GnomAD2 exomes  AF:  0.00394  AC: 990AN: 251426 AF XY:  0.00279   show subpopulations 
GnomAD2 exomes 
 AF: 
AC: 
990
AN: 
251426
 AF XY: 
Gnomad AFR exome 
 AF: 
Gnomad AMR exome 
 AF: 
Gnomad ASJ exome 
 AF: 
Gnomad EAS exome 
 AF: 
Gnomad FIN exome 
 AF: 
Gnomad NFE exome 
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Gnomad OTH exome 
 AF: 
GnomAD4 exome  AF:  0.00138  AC: 2014AN: 1460992Hom.:  49  Cov.: 29 AF XY:  0.00117  AC XY: 847AN XY: 726856 show subpopulations 
GnomAD4 exome 
 AF: 
AC: 
2014
AN: 
1460992
Hom.: 
Cov.: 
29
 AF XY: 
AC XY: 
847
AN XY: 
726856
show subpopulations 
African (AFR) 
 AF: 
AC: 
1693
AN: 
33446
American (AMR) 
 AF: 
AC: 
131
AN: 
44720
Ashkenazi Jewish (ASJ) 
 AF: 
AC: 
0
AN: 
26134
East Asian (EAS) 
 AF: 
AC: 
0
AN: 
39692
South Asian (SAS) 
 AF: 
AC: 
4
AN: 
86244
European-Finnish (FIN) 
 AF: 
AC: 
0
AN: 
53342
Middle Eastern (MID) 
 AF: 
AC: 
3
AN: 
5762
European-Non Finnish (NFE) 
 AF: 
AC: 
23
AN: 
1111276
Other (OTH) 
 AF: 
AC: 
160
AN: 
60376
 Allele Balance Distribution 
 Red line indicates average allele balance 
 Average allele balance: 0.478 
Heterozygous variant carriers
 0 
 105 
 209 
 314 
 418 
 523 
 0.00 
 0.20 
 0.40 
 0.60 
 0.80 
 0.95 
Allele balance
Age Distribution
Exome Het
Exome Hom
Variant carriers
 0 
 52 
 104 
 156 
 208 
 260 
 <30 
 30-35 
 35-40 
 40-45 
 45-50 
 50-55 
 55-60 
 60-65 
 65-70 
 70-75 
 75-80 
 >80 
Age
GnomAD4 genome  0.0145  AC: 2208AN: 152256Hom.:  55  Cov.: 31 AF XY:  0.0139  AC XY: 1034AN XY: 74446 show subpopulations 
GnomAD4 genome 
 AF: 
AC: 
2208
AN: 
152256
Hom.: 
Cov.: 
31
 AF XY: 
AC XY: 
1034
AN XY: 
74446
show subpopulations 
African (AFR) 
 AF: 
AC: 
2081
AN: 
41532
American (AMR) 
 AF: 
AC: 
91
AN: 
15288
Ashkenazi Jewish (ASJ) 
 AF: 
AC: 
0
AN: 
3472
East Asian (EAS) 
 AF: 
AC: 
0
AN: 
5184
South Asian (SAS) 
 AF: 
AC: 
1
AN: 
4822
European-Finnish (FIN) 
 AF: 
AC: 
0
AN: 
10626
Middle Eastern (MID) 
 AF: 
AC: 
0
AN: 
294
European-Non Finnish (NFE) 
 AF: 
AC: 
6
AN: 
68014
Other (OTH) 
 AF: 
AC: 
29
AN: 
2112
 Allele Balance Distribution 
 Red line indicates average allele balance 
 Average allele balance: 0.502 
Heterozygous variant carriers
 0 
 105 
 210 
 314 
 419 
 524 
 0.00 
 0.20 
 0.40 
 0.60 
 0.80 
 0.95 
Allele balance
Age Distribution
Genome Het
Genome Hom
Variant carriers
 0 
 22 
 44 
 66 
 88 
 110 
 <30 
 30-35 
 35-40 
 40-45 
 45-50 
 50-55 
 55-60 
 60-65 
 65-70 
 70-75 
 75-80 
 >80 
Age
Alfa 
 AF: 
Hom.: 
Bravo 
 AF: 
Asia WGS 
 AF: 
AC: 
6
AN: 
3478
ClinVar
Significance: Benign 
Submissions summary: Benign:2 
Revision: criteria provided, multiple submitters, no conflicts
LINK: link 
Submissions by phenotype
not specified    Benign:1 
Oct 18, 2013
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing
- -
not provided    Benign:1 
Jun 29, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing
- -
Computational scores
Source: 
Name
Calibrated prediction
Score
Prediction
 BayesDel_noAF 
 Benign 
 DANN 
 Benign 
 PhyloP100 
Splicing
Name
Calibrated prediction
Score
Prediction
 SpliceAI score (max) 
Details are displayed if max score is > 0.2
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at 
Publications
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