Genetic Variant MYH14:p.Phe270Phe (chr19-50225677-C-T) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_ModerateBP6BP7BS1BS2

The NM_001145809.2(MYH14):c.810C>T(p.Phe270Phe) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000146 in 1,612,660 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

MYH14
NM_001145809.2 splice_region, synonymous

Scores

Splicing: ADA: 0.0004676

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: -1.40

Publications

0 publications found

Variant links:

Genes affected

MYH14 (HGNC:23212): (myosin heavy chain 14) This gene encodes a member of the myosin superfamily. The protein represents a conventional non-muscle myosin; it should not be confused with the unconventional myosin-14 (MYO14). Myosins are actin-dependent motor proteins with diverse functions including regulation of cytokinesis, cell motility, and cell polarity. Mutations in this gene result in one form of autosomal dominant hearing impairment. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]

MYH14 Gene-Disease associations (from GenCC):

autosomal dominant nonsyndromic hearing loss 4A
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
peripheral neuropathy-myopathy-hoarseness-hearing loss syndrome
Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
nonsyndromic genetic hearing loss
Inheritance: AD Classification: MODERATE Submitted by: ClinGen
autosomal dominant nonsyndromic hearing loss
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

MYH14 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.39).

BP6

Variant 19-50225677-C-T is Benign according to our data. Variant chr19-50225677-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 44080.

BP7

Synonymous conserved (PhyloP=-1.4 with no splicing effect.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000118 (18/152338) while in subpopulation AMR AF = 0.000588 (9/15298). AF 95% confidence interval is 0.000307. There are 0 homozygotes in GnomAd4. There are 15 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 18 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001145809.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MYH14	NM_001145809.2	MANE Select	c.810C>T	p.Phe270Phe	splice_region synonymous	Exon 7 of 43	NP_001139281.1	Q7Z406-2
MYH14	NM_001077186.2		c.810C>T	p.Phe270Phe	splice_region synonymous	Exon 7 of 42	NP_001070654.1	Q7Z406-6
MYH14	NM_024729.4		c.786C>T	p.Phe262Phe	splice_region synonymous	Exon 6 of 41	NP_079005.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MYH14	ENST00000642316.2	MANE Select	c.810C>T	p.Phe270Phe	splice_region synonymous	Exon 7 of 43	ENSP00000493594.1	Q7Z406-2
MYH14	ENST00000599920.5	TSL:1	c.810C>T	p.Phe270Phe	splice_region synonymous	Exon 7 of 24	ENSP00000469573.1	M0QY43
MYH14	ENST00000425460.6	TSL:5	c.810C>T	p.Phe270Phe	splice_region synonymous	Exon 7 of 42	ENSP00000407879.1	Q7Z406-6

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

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:

0.0000882

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000152

AC:

AN:

249242

AF XY:

0.000178

show subpopulations

Gnomad AFR exome

AF:

0.000126

Gnomad AMR exome

AF:

0.000493

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000142

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.000149

AC:

218

AN:

1460322

Hom.:

Cov.:

AF XY:

0.000150

AC XY:

109

AN XY:

726566

show subpopulations

African (AFR)

AF:

0.0000897

AC:

AN:

33452

American (AMR)

AF:

0.000381

AC:

AN:

44638

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26122

East Asian (EAS)

AF:

0.0000756

AC:

AN:

39674

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86168

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53256

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.000167

AC:

186

AN:

1110902

Other (OTH)

AF:

0.0000994

AC:

AN:

60346

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000118

AC:

AN:

152338

Hom.:

Cov.:

AF XY:

0.000201

AC XY:

AN XY:

74500

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41576

American (AMR)

AF:

0.000588

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68040

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.544

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000108

Hom.:

Bravo

AF:

0.000181

EpiCase

AF:

0.000164

EpiControl

AF:

0.000178

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (3)

not provided (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.39

CADD

Benign

0.34

(source)

DANN

Benign

0.87

PhyloP100

-1.4

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00047

dbscSNV1_RF

Benign

0.11

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over