Genetic Variant MYL12A:p.Ser2Leu (chr18-3253252-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_006471.4(MYL12A):c.5C>T(p.Ser2Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000136 in 1,612,474 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S2W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

MYL12A
NM_006471.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.91

Variant links:

Genes affected

MYL12A (HGNC:16701): (myosin light chain 12A) This gene encodes a nonsarcomeric myosin regulatory light chain. This protein is activated by phosphorylation and regulates smooth muscle and non-muscle cell contraction. This protein may also be involved in DNA damage repair by sequestering the transcriptional regulator apoptosis-antagonizing transcription factor (AATF)/Che-1 which functions as a repressor of p53-driven apoptosis. Alternate splicing results in multiple transcript variants. A pseudogene of this gene is found on chromosome 8.[provided by RefSeq, Dec 2014]

MYL12A links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 19 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYL12A	NM_006471.4 link	c.5C>T	p.Ser2Leu	missense_variant	Exon 2 of 4	ENST00000217652.8	NP_006462.1	P19105

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYL12A	ENST00000217652.8 link	c.5C>T	p.Ser2Leu	missense_variant	Exon 2 of 4	1	NM_006471.4	ENSP00000217652.3		P19105

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152098

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250748

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135526

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:

0.0000265

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000130

AC:

AN:

1460376

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

726486

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:

0.0000153

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152098

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74306

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000294

Gnomad4 OTH

AF:

0.000479

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000165

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.42

BayesDel_addAF

Pathogenic

0.28

BayesDel_noAF

Pathogenic

0.23

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.074

T;T;T;.;.;T;T

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.54

.;.;.;.;T;T;T

M_CAP

Benign

0.066

MetaRNN

Uncertain

0.71

D;D;D;D;D;D;D

MetaSVM

Benign

-0.37

MutationAssessor

Benign

2.0

M;M;M;.;.;.;M

PrimateAI

Uncertain

0.76

PROVEAN

Uncertain

-2.7

.;D;.;.;.;.;D

REVEL

Uncertain

0.53

Sift

Uncertain

0.0020

.;D;.;.;.;.;D

Sift4G

Benign

0.19

T;T;T;.;T;T;T

Polyphen

0.58

P;P;P;.;.;.;P

Vest4

0.62

MutPred

0.29

Loss of phosphorylation at S2 (P = 9e-04);Loss of phosphorylation at S2 (P = 9e-04);Loss of phosphorylation at S2 (P = 9e-04);Loss of phosphorylation at S2 (P = 9e-04);Loss of phosphorylation at S2 (P = 9e-04);.;Loss of phosphorylation at S2 (P = 9e-04);

MVP

0.89

MPC

0.70

ClinPred

0.93

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.50

gMVP

0.45

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over