2-210294124-T-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_079420.3(MYL1):​c.478+121A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00431 in 1,024,164 control chromosomes in the GnomAD database, including 126 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.018 ( 73 hom., cov: 33)
Exomes 𝑓: 0.0020 ( 53 hom. )

Consequence

MYL1
NM_079420.3 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.302
Variant links:
Genes affected
MYL1 (HGNC:7582): (myosin light chain 1) Myosin is a hexameric ATPase cellular motor protein. It is composed of two heavy chains, two nonphosphorylatable alkali light chains, and two phosphorylatable regulatory light chains. This gene encodes a myosin alkali light chain expressed in fast skeletal muscle. Two transcript variants have been identified for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 2-210294124-T-A is Benign according to our data. Variant chr2-210294124-T-A is described in ClinVar as [Benign]. Clinvar id is 1242873.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0587 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYL1NM_079420.3 linkuse as main transcriptc.478+121A>T intron_variant ENST00000352451.4
MYL1NM_079422.3 linkuse as main transcriptc.346+121A>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYL1ENST00000352451.4 linkuse as main transcriptc.478+121A>T intron_variant 1 NM_079420.3 P05976-1
MYL1ENST00000341685.8 linkuse as main transcriptc.346+121A>T intron_variant 1 P1P05976-2
MYL1ENST00000484290.1 linkuse as main transcriptn.609+121A>T intron_variant, non_coding_transcript_variant 5
MYL1ENST00000496436.5 linkuse as main transcriptn.581+121A>T intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0178
AC:
2701
AN:
151666
Hom.:
74
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0607
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00913
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000418
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000280
Gnomad OTH
AF:
0.0145
GnomAD4 exome
AF:
0.00196
AC:
1712
AN:
872380
Hom.:
53
AF XY:
0.00177
AC XY:
765
AN XY:
432358
show subpopulations
Gnomad4 AFR exome
AF:
0.0663
Gnomad4 AMR exome
AF:
0.00497
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000904
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000186
Gnomad4 OTH exome
AF:
0.00456
GnomAD4 genome
AF:
0.0178
AC:
2706
AN:
151784
Hom.:
73
Cov.:
33
AF XY:
0.0170
AC XY:
1261
AN XY:
74170
show subpopulations
Gnomad4 AFR
AF:
0.0607
Gnomad4 AMR
AF:
0.00906
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000418
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000280
Gnomad4 OTH
AF:
0.0143
Alfa
AF:
0.0135
Hom.:
6
Bravo
AF:
0.0209
Asia WGS
AF:
0.00577
AC:
21
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxMay 22, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
2.4
DANN
Benign
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs13427549; hg19: chr2-211158848; COSMIC: COSV104420149; API