rs781261060

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 12P and 4B. PVS1PM2PP5_ModerateBS2

The NM_032578.4(MYPN):​c.1129C>T​(p.Arg377Ter) variant causes a stop gained, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000343 in 1,459,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

MYPN
NM_032578.4 stop_gained, splice_region

Scores

4
2
1
Splicing: ADA: 0.5341
2

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 2.57
Variant links:
Genes affected
MYPN (HGNC:23246): (myopalladin) Striated muscle in vertebrates comprises large proteins which must be organized properly to contract efficiently. Z-lines in striated muscle are a sign of this organization, representing the ends of actin thin filaments, titin, nebulin or nebulette and accessory proteins required for structure and function. This gene encodes a protein which interacts with nebulin in skeletal muscle or nebulette in cardiac muscle and alpha-actinin. In addition, this gene product can interact with a protein with the I-band indicating it has a regulatory as well as structural function. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 10-68145525-C-T is Pathogenic according to our data. Variant chr10-68145525-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 375566.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYPNNM_032578.4 linkuse as main transcriptc.1129C>T p.Arg377Ter stop_gained, splice_region_variant 4/20 ENST00000358913.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYPNENST00000358913.10 linkuse as main transcriptc.1129C>T p.Arg377Ter stop_gained, splice_region_variant 4/201 NM_032578.4 P1Q86TC9-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251030
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135668
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000343
AC:
5
AN:
1459818
Hom.:
0
Cov.:
29
AF XY:
0.00000688
AC XY:
5
AN XY:
726374
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

MYPN-related myopathy Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMJul 16, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.51
D
BayesDel_noAF
Pathogenic
0.60
CADD
Pathogenic
45
DANN
Uncertain
1.0
Eigen
Pathogenic
0.90
Eigen_PC
Pathogenic
0.72
FATHMM_MKL
Uncertain
0.97
D
MutationTaster
Benign
1.0
A;A;A;A
Vest4
0.32
GERP RS
4.3

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.53
dbscSNV1_RF
Benign
0.59
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: rs781261060; hg19: chr10-69905282; COSMIC: COSV62740991; API