rs765328765

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_000432.4(MYL2):​c.275-8C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,614,076 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

MYL2
NM_000432.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00003188
2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.0430
Variant links:
Genes affected
MYL2 (HGNC:7583): (myosin light chain 2) This gene encodes a major sarcomeric protein in mammalian striated muscle. The encoded protein plays a role in embryonic heart muscle structure and function, while phosphorylation of the encoded protein is involved in cardiac myosin cycling kinetics, torsion and function in adults. Mutations in this gene are associated with hypertrophic cardiomyopathy 10 and infant-onset myopathy. [provided by RefSeq, May 2022]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 12-110913332-G-A is Benign according to our data. Variant chr12-110913332-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 668627.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAdExome4 at 16 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYL2NM_000432.4 linkuse as main transcriptc.275-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000228841.15
MYL2NM_001406745.1 linkuse as main transcriptc.233-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant
MYL2NM_001406916.1 linkuse as main transcriptc.218-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYL2ENST00000228841.15 linkuse as main transcriptc.275-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_000432.4 P1
MYL2ENST00000548438.1 linkuse as main transcriptc.233-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 3
MYL2ENST00000663220.1 linkuse as main transcriptc.218-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant
MYL2ENST00000549029.1 linkuse as main transcriptn.106-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152216
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251456
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135904
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000109
AC:
16
AN:
1461860
Hom.:
0
Cov.:
35
AF XY:
0.00000688
AC XY:
5
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000630
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152216
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000302
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hypertrophic cardiomyopathy 10 Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeNov 10, 2023- -
Cardiomyopathy Benign:1
Likely benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthFeb 08, 2019- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxFeb 04, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.68
DANN
Benign
0.67

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000032
dbscSNV1_RF
Benign
0.0
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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs765328765; hg19: chr12-111351136; API