Genetic Variant MYH14:p.Leu1027Leu (chr19-50271454-C-T) – ACMG Classification: Benign (-19 pts)

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_001145809.2(MYH14):c.3079C>T(p.Leu1027Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000345 in 1,607,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0019 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

MYH14
NM_001145809.2 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 2.63

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: PanelApp Australia, Labcorp Genetics (formerly Invitae), Ambry Genetics
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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.35).

BP6

Variant 19-50271454-C-T is Benign according to our data. Variant chr19-50271454-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 286961.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=2.63 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00194 (295/152236) while in subpopulation AFR AF = 0.00664 (276/41536). AF 95% confidence interval is 0.006. There are 0 homozygotes in GnomAd4. There are 145 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High AC in GnomAd4 at 295 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
MYH14	NM_001145809.2	MANE Select	c.3079C>T	p.Leu1027Leu	synonymous	Exon 25 of 43	NP_001139281.1
MYH14	NM_001077186.2		c.2980C>T	p.Leu994Leu	synonymous	Exon 24 of 42	NP_001070654.1
MYH14	NM_024729.4		c.2956C>T	p.Leu986Leu	synonymous	Exon 23 of 41	NP_079005.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
MYH14	ENST00000642316.2	MANE Select	c.3079C>T	p.Leu1027Leu	synonymous	Exon 25 of 43	ENSP00000493594.1
MYH14	ENST00000599920.5	TSL:1	c.2980C>T	p.Leu994Leu	synonymous	Exon 24 of 24	ENSP00000469573.1
MYH14	ENST00000425460.6	TSL:5	c.2980C>T	p.Leu994Leu	synonymous	Exon 24 of 42	ENSP00000407879.1

Frequencies

GnomAD3 genomes

AF:

0.00192

AC:

292

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00659

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000851

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:

0.0000147

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.000391

AC:

AN:

238144

AF XY:

0.000302

show subpopulations

Gnomad AFR exome

AF:

0.00532

Gnomad AMR exome

AF:

0.000271

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000279

Gnomad OTH exome

AF:

0.000510

GnomAD4 exome

AF:

0.000178

AC:

259

AN:

1455614

Hom.:

Cov.:

AF XY:

0.000145

AC XY:

105

AN XY:

723374

show subpopulations

African (AFR)

AF:

0.00632

AC:

211

AN:

33382

American (AMR)

AF:

0.000343

AC:

AN:

43718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25974

East Asian (EAS)

AF:

0.00

AC:

AN:

39502

South Asian (SAS)

AF:

0.0000354

AC:

AN:

84818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53090

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5642

European-Non Finnish (NFE)

AF:

0.00000451

AC:

AN:

1109294

Other (OTH)

AF:

0.000415

AC:

AN:

60194

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

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:

0.00194

AC:

295

AN:

152236

Hom.:

Cov.:

AF XY:

0.00195

AC XY:

145

AN XY:

74410

show subpopulations

African (AFR)

AF:

0.00664

AC:

276

AN:

41536

American (AMR)

AF:

0.000850

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68024

Other (OTH)

AF:

0.00237

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

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:

0.000965

Hom.:

Bravo

AF:

0.00202

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions as Germline

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

not specified (2)

Autosomal dominant nonsyndromic hearing loss 4A (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.35

CADD

Benign

(source)

DANN

Benign

0.79

PhyloP100

2.6

Mutation Taster

=100/0

polymorphism

(source)

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

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