rs1555257773
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP3
The NM_000432.4(MYL2):c.322C>T(p.Pro108Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. P108P) has been classified as Likely benign.
Frequency
Genomes: not found (cov: 33)
Consequence
MYL2
NM_000432.4 missense
NM_000432.4 missense
Scores
4
9
7
Clinical Significance
Conservation
PhyloP100: 9.60
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 Uncertain_significance. Variant got 5 ACMG points.
PM1
In a chain Myosin regulatory light chain 2, ventricular/cardiac muscle isoform (size 164) in uniprot entity MLRV_HUMAN there are 53 pathogenic changes around while only 9 benign (85%) in NM_000432.4
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.834
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MYL2 | NM_000432.4 | c.322C>T | p.Pro108Ser | missense_variant | 5/7 | ENST00000228841.15 | |
MYL2 | NM_001406745.1 | c.280C>T | p.Pro94Ser | missense_variant | 4/6 | ||
MYL2 | NM_001406916.1 | c.265C>T | p.Pro89Ser | missense_variant | 5/7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MYL2 | ENST00000228841.15 | c.322C>T | p.Pro108Ser | missense_variant | 5/7 | 1 | NM_000432.4 | P1 | |
MYL2 | ENST00000548438.1 | c.280C>T | p.Pro94Ser | missense_variant | 4/6 | 3 | |||
MYL2 | ENST00000663220.1 | c.265C>T | p.Pro89Ser | missense_variant | 5/7 | ||||
MYL2 | ENST00000549029.1 | n.153C>T | non_coding_transcript_exon_variant | 2/2 | 2 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 genomes
Cov.:
33
GnomAD4 exome Cov.: 35
GnomAD4 exome
Cov.:
35
GnomAD4 genome Cov.: 33
GnomAD4 genome
Cov.:
33
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Hypertrophic cardiomyopathy 10 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jun 04, 2022 | In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 464144). This variant has not been reported in the literature in individuals affected with MYL2-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 108 of the MYL2 protein (p.Pro108Ser). - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
CardioboostCm
Uncertain
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Uncertain
DANN
Pathogenic
DEOGEN2
Uncertain
D;.
Eigen
Benign
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T;T
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D
MetaSVM
Benign
T
MutationAssessor
Benign
L;.
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D
REVEL
Uncertain
Sift
Uncertain
D;D
Sift4G
Benign
T;D
Polyphen
B;.
Vest4
MutPred
Gain of catalytic residue at V113 (P = 0);.;
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
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