chr12-56155186-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_002475.5(MYL6B):​c.334C>T​(p.Pro112Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000181 in 1,603,392 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

MYL6B
NM_002475.5 missense

Scores

9
7
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.13
Variant links:
Genes affected
MYL6B (HGNC:29823): (myosin light chain 6B) 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 both slow-twitch skeletal muscle and in nonmuscle tissue. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2010]
MYL6B-AS1 (HGNC:55472): (MYL6B antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.778

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MYL6BNM_002475.5 linkuse as main transcriptc.334C>T p.Pro112Ser missense_variant 4/8 ENST00000695999.1 NP_002466.1
MYL6BNM_001199629.2 linkuse as main transcriptc.334C>T p.Pro112Ser missense_variant 4/8 NP_001186558.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MYL6BENST00000695999.1 linkuse as main transcriptc.334C>T p.Pro112Ser missense_variant 4/8 NM_002475.5 ENSP00000512320 P1
MYL6B-AS1ENST00000548731.1 linkuse as main transcriptn.350+2448G>A intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
AF:
0.000197
AC:
30
AN:
152138
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000943
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000382
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000134
AC:
32
AN:
239318
Hom.:
0
AF XY:
0.000147
AC XY:
19
AN XY:
129530
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000318
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000188
Gnomad NFE exome
AF:
0.000246
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000179
AC:
260
AN:
1451254
Hom.:
0
Cov.:
32
AF XY:
0.000180
AC XY:
130
AN XY:
721736
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000239
Gnomad4 ASJ exome
AF:
0.0000394
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000119
Gnomad4 FIN exome
AF:
0.000376
Gnomad4 NFE exome
AF:
0.000211
Gnomad4 OTH exome
AF:
0.0000501
GnomAD4 genome
AF:
0.000197
AC:
30
AN:
152138
Hom.:
0
Cov.:
32
AF XY:
0.000188
AC XY:
14
AN XY:
74318
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000943
Gnomad4 NFE
AF:
0.000382
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.000180
Hom.:
0
Bravo
AF:
0.000125
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000148
AC:
18
EpiCase
AF:
0.000218
EpiControl
AF:
0.000178

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 06, 2021The c.334C>T (p.P112S) alteration is located in exon 4 (coding exon 3) of the MYL6B gene. This alteration results from a C to T substitution at nucleotide position 334, causing the proline (P) at amino acid position 112 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.87
BayesDel_addAF
Uncertain
0.088
D
BayesDel_noAF
Pathogenic
0.21
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.35
T;T;.
Eigen
Uncertain
0.60
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.85
.;D;D
M_CAP
Pathogenic
0.36
D
MetaRNN
Pathogenic
0.78
D;D;D
MetaSVM
Pathogenic
0.97
D
MutationAssessor
Pathogenic
3.8
H;H;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.57
T
PROVEAN
Pathogenic
-7.8
D;D;D
REVEL
Pathogenic
0.75
Sift
Uncertain
0.0010
D;D;D
Sift4G
Uncertain
0.048
D;D;D
Polyphen
0.99
D;D;.
Vest4
0.54
MVP
0.96
MPC
0.66
ClinPred
0.99
D
GERP RS
4.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.7
Varity_R
0.83
gMVP
0.61

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: rs77682403; hg19: chr12-56548970; COSMIC: COSV105069257; COSMIC: COSV105069257; API