10-68174332-T-G

Variant names:

• chr10-68174332-T-G
• rs758580382
• NM_032578.4:c.2240T>G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_032578.4(MYPN):​c.2240T>G​(p.Leu747Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,880 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: MYPN NM_032578.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.43

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2886736).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYPN	NM_032578.4	c.2240T>G	p.Leu747Trp	missense_variant	Exon 11 of 20	ENST00000358913.10	NP_115967.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYPN	ENST00000358913.10	c.2240T>G	p.Leu747Trp	missense_variant	Exon 11 of 20	1	NM_032578.4	ENSP00000351790.5

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461880 Hom.: 0 Cov.: 75 AF XY: 0.00000138 AC XY: 1 AN XY: 727242

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.58
BayesDel_addAF	Benign	-0.033	T
BayesDel_noAF	Benign	-0.29
CADD	Benign	20
DANN	Benign	0.95
DEOGEN2	Benign	0.045	.;.;.;T
Eigen	Uncertain	0.26
Eigen_PC	Uncertain	0.27
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.81	T;T;.;T
M_CAP	Benign	0.023	T
MetaRNN	Benign	0.29	T;T;T;T
MetaSVM	Benign	-0.56	T
MutationAssessor	Benign	1.6	L;.;L;.
PrimateAI	Benign	0.47	T
PROVEAN	Benign	-0.90	N;N;N;.
REVEL	Benign	0.19
Sift	Uncertain	0.0040	D;D;D;.
Sift4G	Uncertain	0.042	D;T;D;T
Polyphen		0.99	D;D;D;.
Vest4		0.47
MutPred		0.21		Loss of glycosylation at S749 (P = 0.1015);.;Loss of glycosylation at S749 (P = 0.1015);.;
MVP		0.70
MPC		0.40
ClinPred		0.37	T
GERP RS		4.6
Varity_R		0.11
gMVP		0.52

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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

Other links and lift over

dbSNP: rs758580382; hg19: chr10-69934089;