chr12-110919201-A-G

Variant summary

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

The NM_000432.4(MYL2):​c.4-8T>C variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000685 in 1,459,022 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: not found (cov: 32)
Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

MYL2
NM_000432.4 splice_region, intron

Scores

2
Splicing: ADA: 0.000006933
2

Clinical Significance

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

Conservation

PhyloP100: -0.540
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=-0.87).
BP6
Variant 12-110919201-A-G is Benign according to our data. Variant chr12-110919201-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 532782.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MYL2NM_000432.4 linkuse as main transcriptc.4-8T>C splice_region_variant, intron_variant ENST00000228841.15 NP_000423.2 P10916Q6IB42
MYL2NM_001406745.1 linkuse as main transcriptc.4-8T>C splice_region_variant, intron_variant NP_001393674.1
MYL2NM_001406916.1 linkuse as main transcriptc.-54-8T>C splice_region_variant, intron_variant NP_001393845.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MYL2ENST00000228841.15 linkuse as main transcriptc.4-8T>C splice_region_variant, intron_variant 1 NM_000432.4 ENSP00000228841.8 P10916
MYL2ENST00000548438.1 linkuse as main transcriptc.4-8T>C splice_region_variant, intron_variant 3 ENSP00000447154.1 G3V1V8
MYL2ENST00000663220.1 linkuse as main transcriptc.-54-8T>C splice_region_variant, intron_variant ENSP00000499568.1 A0A590UJU8
MYL2ENST00000546404.1 linkuse as main transcriptc.4-8T>C splice_region_variant, intron_variant 2 ENSP00000499645.1 A0A590UK07

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000160
AC:
4
AN:
250388
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135364
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.0000353
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000685
AC:
10
AN:
1459022
Hom.:
0
Cov.:
30
AF XY:
0.00000551
AC XY:
4
AN XY:
725826
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000810
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000387
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

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

Submissions by phenotype

Cardiomyopathy Benign:1
Likely benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthDec 10, 2018- -
Hypertrophic cardiomyopathy 10 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 25, 2021- -
Hypertrophic cardiomyopathy Benign:1
Likely benign, criteria provided, single submitterclinical testingAll of Us Research Program, National Institutes of HealthDec 07, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
0.41
DANN
Benign
0.44

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0000069
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: rs750730703; hg19: chr12-111357005; API