chr22-36295593-G-C

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BP4BS2

The NM_002473.6(MYH9):c.3397C>G(p.Gln1133Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000235 in 1,613,866 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

MYH9
NM_002473.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 8.13

Variant links:

Genes affected

MYH9 (HGNC:7579): (myosin heavy chain 9) This gene encodes a conventional non-muscle myosin; this protein should not be confused with the unconventional myosin-9a or 9b (MYO9A or MYO9B). The encoded protein is a myosin IIA heavy chain that contains an IQ domain and a myosin head-like domain which is involved in several important functions, including cytokinesis, cell motility and maintenance of cell shape. Defects in this gene have been associated with non-syndromic sensorineural deafness autosomal dominant type 17, Epstein syndrome, Alport syndrome with macrothrombocytopenia, Sebastian syndrome, Fechtner syndrome and macrothrombocytopenia with progressive sensorineural deafness. [provided by RefSeq, Dec 2011]

MYH9 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP2

Missense variant in the MYH9 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 43 curated pathogenic missense variants (we use a threshold of 10). The gene has 84 curated benign missense variants. Gene score misZ: 3.473 (above the threshold of 3.09). Trascript score misZ: 6.1231 (above the threshold of 3.09). GenCC associations: The gene is linked to May-Hegglin anomaly, autosomal dominant nonsyndromic hearing loss, macrothrombocytopenia and granulocyte inclusions with or without nephritis or sensorineural hearing loss, autosomal dominant nonsyndromic hearing loss 17.

BP4

Computational evidence support a benign effect (MetaRNN=0.323669).

BS2

High AC in GnomAdExome4 at 36 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH9	NM_002473.6 link	c.3397C>G	p.Gln1133Glu	missense_variant	Exon 26 of 41	ENST00000216181.11	NP_002464.1	P35579-1A0A024R1N1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MYH9	ENST00000216181.11 link	c.3397C>G	p.Gln1133Glu	missense_variant	Exon 26 of 41	1	NM_002473.6	ENSP00000216181.6	P35579-1
MYH9	ENST00000685801.1 link	c.3460C>G	p.Gln1154Glu	missense_variant	Exon 27 of 42			ENSP00000510688.1	A0A8I5KWT8
MYH9	ENST00000459960.1 link	n.606C>G		non_coding_transcript_exon_variant	Exon 2 of 2	2
MYH9	ENST00000691109.1 link	n.3692C>G		non_coding_transcript_exon_variant	Exon 20 of 35

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.00

GnomAD3 exomes

AF:

0.0000279

AC:

AN:

251146

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135824

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000440

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000246

AC:

AN:

1461722

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

727156

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

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:

0.0000288

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152144

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74330

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000227

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Nov 20, 2017

The p.Gln1133Glu variant in MYH9 has not been previously reported in individuals with hearing loss. This variant has been identified in 2/33578 Latino chromosom es and 5/111576 European chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs368797590). Although this variant has been seen in the general population, its frequency is not high enough to rule o ut a pathogenic role. Computational prediction tools and conservation analysis s uggest that the p.Gln1133Glu variant may not impact the protein, though this inf ormation is not predictive enough to rule out pathogenicity. In summary, the cli nical significance of the p.Gln1133Glu variant is uncertain. ACMG/AMP Criteria a pplied: PM2; BP4. -

Autosomal dominant nonsyndromic hearing loss 17;C5200934:Macrothrombocytopenia and granulocyte inclusions with or without nephritis or sensorineural hearing loss

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Mar 16, 2022

- -

Macrothrombocytopenia and granulocyte inclusions with or without nephritis or sensorineural hearing loss

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

St. Jude Molecular Pathology, St. Jude Children's Research Hospital

Sep 22, 2023

The MYH9 c.3397C>G (p.Gln1133Glu) missense change has a maximum subpopulation frequency of 0.0058% in gnomAD v2.1.1(https://gnomad.broadinstitute.org/ ). The in silico tool REVEL is inconclusive about a pathogenic or benign effect of this variant on protein function, and to our knowledge functional studies have not been performed. To our knowledge, this variant has not been reported in individuals with MYH9-related disease. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 24, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.23

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.24

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.49

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.43

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.94

M_CAP

Benign

0.070

MetaRNN

Benign

0.32

MetaSVM

Uncertain

0.088

MutationAssessor

Pathogenic

3.5

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-2.0

REVEL

Uncertain

0.51

Sift

Benign

0.23

Sift4G

Benign

0.29

Polyphen

0.42

Vest4

0.19

MVP

0.81

MPC

0.74

ClinPred

0.31

GERP RS

4.6

Varity_R

0.33

gMVP

0.48

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over