NM_032578.4:c.935C>T

Variant names:

• chr10-68142972-C-T
• rs786205457
• NM_032578.4:c.935C>T

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PP3_Moderate PP5

The NM_032578.4(MYPN):​c.935C>T​(p.Ser312Phe) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: MYPN NM_032578.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1 U:2
• Conservation: PhyloP100: 4.98
• Publications: 3 publications found

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]

MYPN Gene-Disease associations (from GenCC):

• MYPN-related myopathy

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)
• cap myopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• childhood-onset nemaline myopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• familial isolated dilated cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• familial isolated restrictive cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• dilated cardiomyopathy

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• dilated cardiomyopathy 1KK

  Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
• hypertrophic cardiomyopathy

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.842
• PP5: Variant 10-68142972-C-T is Pathogenic according to our data. Variant chr10-68142972-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 191001.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032578.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYPN	NM_032578.4	MANE Select	c.935C>T	p.Ser312Phe	missense	Exon 3 of 20	NP_115967.2	Q86TC9-1
	MYPN	NM_001256267.2		c.935C>T	p.Ser312Phe	missense	Exon 4 of 21	NP_001243196.1	Q86TC9-1
	MYPN	NM_001256268.2		c.53C>T	p.Ser18Phe	missense	Exon 7 of 24	NP_001243197.1	A0A087WX60

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYPN	ENST00000358913.10	TSL:1 MANE Select	c.935C>T	p.Ser312Phe	missense	Exon 3 of 20	ENSP00000351790.5	Q86TC9-1
	MYPN	ENST00000540630.6	TSL:1	c.989C>T	p.Ser330Phe	missense	Exon 3 of 20	ENSP00000441668.3	A0A8J9ASZ5
	MYPN	ENST00000613327.5	TSL:1	c.935C>T	p.Ser312Phe	missense	Exon 4 of 21	ENSP00000480757.2	Q86TC9-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000429 Hom.: 0

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	-	Hypertrophic cardiomyopathy (1)
1	-	-	not provided (1)
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.79
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.18
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.081	T
Eigen	Pathogenic	0.89
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Uncertain	0.87	D
LIST_S2	Uncertain	0.96	D
M_CAP	Uncertain	0.11	D
MetaRNN	Pathogenic	0.84	D
MetaSVM	Uncertain	0.58	D
MutationAssessor	Uncertain	2.8	M
PhyloP100		5.0
PrimateAI	Uncertain	0.71	T
PROVEAN	Uncertain	-3.3	D
REVEL	Uncertain	0.62
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.83
MutPred		0.64		Loss of disorder (P = 0.0062)
MVP		0.87
MPC		0.64
ClinPred		0.99	D
GERP RS		5.6
Varity_R		0.58
gMVP		0.78
Mutation Taster		=32/68	disease causing

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

Other links and lift over

dbSNP: rs786205457; hg19: chr10-69902729; COSMIC: COSV62733066;