rs138423692
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Variant summary
Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_ModerateBP6_Very_Strong
The NM_053025.4(MYLK):c.4929C>T(p.Asp1643=) variant causes a synonymous change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000626 in 1,614,000 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.00031 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000037 ( 0 hom. )
Consequence
MYLK
NM_053025.4 synonymous
NM_053025.4 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 7.77
Genes affected
MYLK (HGNC:7590): (myosin light chain kinase) This gene, a muscle member of the immunoglobulin gene superfamily, encodes myosin light chain kinase which is a calcium/calmodulin dependent enzyme. This kinase phosphorylates myosin regulatory light chains to facilitate myosin interaction with actin filaments to produce contractile activity. This gene encodes both smooth muscle and nonmuscle isoforms. In addition, using a separate promoter in an intron in the 3' region, it encodes telokin, a small protein identical in sequence to the C-terminus of myosin light chain kinase, that is independently expressed in smooth muscle and functions to stabilize unphosphorylated myosin filaments. A pseudogene is located on the p arm of chromosome 3. Four transcript variants that produce four isoforms of the calcium/calmodulin dependent enzyme have been identified as well as two transcripts that produce two isoforms of telokin. Additional variants have been identified but lack full length transcripts. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -10 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.33).
BP6
?
Variant 3-123638103-G-A is Benign according to our data. Variant chr3-123638103-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 241762.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MYLK | NM_053025.4 | c.4929C>T | p.Asp1643= | synonymous_variant | 29/34 | ENST00000360304.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MYLK | ENST00000360304.8 | c.4929C>T | p.Asp1643= | synonymous_variant | 29/34 | 5 | NM_053025.4 | P4 | |
MYLK-AS1 | ENST00000485162.5 | n.523-6401G>A | intron_variant, non_coding_transcript_variant | 4 |
Frequencies
GnomAD3 genomes ? AF: 0.000309 AC: 47AN: 152214Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000636 AC: 16AN: 251426Hom.: 0 AF XY: 0.0000368 AC XY: 5AN XY: 135894
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GnomAD4 exome AF: 0.0000369 AC: 54AN: 1461786Hom.: 0 Cov.: 32 AF XY: 0.0000303 AC XY: 22AN XY: 727182
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GnomAD4 genome ? AF: 0.000309 AC: 47AN: 152214Hom.: 0 Cov.: 32 AF XY: 0.000269 AC XY: 20AN XY: 74356
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Familial thoracic aortic aneurysm and aortic dissection Benign:2
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Feb 11, 2022 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Benign, criteria provided, single submitter | clinical testing | CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario | Sep 14, 2021 | - - |
Aortic aneurysm, familial thoracic 7 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Dec 11, 2023 | - - |
not specified Benign:1
Benign, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | Sep 25, 2023 | - - |
not provided Benign:1
Likely benign, criteria provided, single submitter | clinical testing | GeneDx | Oct 22, 2019 | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at