Genetic Variant MYO1H:p.Leu1017Arg (chr12-109445569-T-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001101421.4(MYO1H):c.3050T>G(p.Leu1017Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000775 in 1,612,148 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/18 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L1017P) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000072 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000078 ( 1 hom. )

Consequence

MYO1H
NM_001101421.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.0330

Publications

45 publications found

Variant links:

Genes affected

MYO1H (HGNC:13879): (myosin IH) Predicted to enable actin filament binding activity and microfilament motor activity. Predicted to be involved in actin filament organization and vesicle transport along actin filament. Predicted to be part of myosin complex. Predicted to be active in several cellular components, including actin cytoskeleton; microvillus; and vesicle. [provided by Alliance of Genome Resources, Apr 2022]

MYO1H Gene-Disease associations (from GenCC):

congenital central hypoventilation syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
central hypoventilation syndrome, congenital, 2, and autonomic dysfunction
Inheritance: AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

MYO1H links:

ENSG00000255655 (HGNC:):

ENSG00000255655 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.02260238).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001101421.4. 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
	MYO1H	NM_001101421.4	MANE Select	c.3050T>G	p.Leu1017Arg	missense	Exon 31 of 32	NP_001094891.4	A0A140TA25

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MYO1H	ENST00000310903.10	TSL:5 MANE Select	c.3050T>G	p.Leu1017Arg	missense	Exon 31 of 32	ENSP00000439182.2	A0A140TA25
ENSG00000255655	ENST00000539987.1	TSL:3	n.444A>C		non_coding_transcript_exon	Exon 2 of 2
MYO1H	ENST00000542268.5	TSL:2	n.850T>G		non_coding_transcript_exon	Exon 8 of 9

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152040

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00104

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000105

AC:

AN:

247116

AF XY:

0.000134

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000356

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000781

AC:

114

AN:

1459990

Hom.:

Cov.:

AF XY:

0.0000991

AC XY:

AN XY:

726184

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33410

American (AMR)

AF:

0.00

AC:

AN:

44484

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26108

East Asian (EAS)

AF:

0.00

AC:

AN:

39644

South Asian (SAS)

AF:

0.000875

AC:

AN:

85750

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53290

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.0000333

AC:

AN:

1111230

Other (OTH)

AF:

0.0000332

AC:

AN:

60310

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.459

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:

0.0000723

AC:

AN:

152158

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74364

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41548

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00104

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10548

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000883

AC:

AN:

67986

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.00

Hom.:

146398

ExAC

AF:

0.000132

AC:

EpiCase

AF:

0.0000548

EpiControl

AF:

0.0000595

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.60

CADD

Benign

(source)

DANN

Benign

0.97

Eigen

Benign

-0.92

Eigen_PC

Benign

-0.81

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.22

M_CAP

Benign

0.012

MetaRNN

Benign

0.023

MetaSVM

Benign

-1.1

PhyloP100

0.033

PrimateAI

Benign

0.31

REVEL

Benign

0.025

Sift4G

Benign

0.45

Vest4

0.19

MVP

0.092

MPC

0.13

ClinPred

0.042

GERP RS

2.8

gMVP

0.084

Mutation Taster

=99/1

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

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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