22-36309402-G-A

Position:

chr22-36309402-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_002473.6(MYH9):c.1729-6C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00159 in 1,611,984 control chromosomes in the GnomAD database, including 33 homozygotes. 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.0068 ( 18 hom., cov: 33)

Exomes 𝑓: 0.0011 ( 15 hom. )

Consequence

MYH9
NM_002473.6 splice_region, splice_polypyrimidine_tract, intron

Scores

Splicing: ADA: 0.00002602

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 1.44

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 Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.87).

BP6

Variant 22-36309402-G-A is Benign according to our data. Variant chr22-36309402-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 44552.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr22-36309402-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00677 (1032/152328) while in subpopulation AFR AF= 0.0222 (922/41568). AF 95% confidence interval is 0.021. There are 18 homozygotes in gnomad4. There are 466 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High AC in GnomAd4 at 1032 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MYH9	NM_002473.6 linkuse as main transcript	c.1729-6C>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000216181.11	NP_002464.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MYH9	ENST00000216181.11 linkuse as main transcript	c.1729-6C>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_002473.6	ENSP00000216181	P1	P35579-1

Frequencies

GnomAD3 genomes

AF:

0.00679

AC:

1033

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0223

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00288

Gnomad ASJ

AF:

0.00922

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000265

Gnomad OTH

AF:

0.00670

GnomAD3 exomes

AF:

0.00244

AC:

612

AN:

251170

Hom.:

AF XY:

0.00204

AC XY:

277

AN XY:

135852

show subpopulations

Gnomad AFR exome

AF:

0.0232

Gnomad AMR exome

AF:

0.00203

Gnomad ASJ exome

AF:

0.0114

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000326

Gnomad OTH exome

AF:

0.00196

GnomAD4 exome

AF:

0.00105

AC:

1534

AN:

1459656

Hom.:

Cov.:

AF XY:

0.000973

AC XY:

707

AN XY:

726256

show subpopulations

Gnomad4 AFR exome

AF:

0.0228

Gnomad4 AMR exome

AF:

0.00235

Gnomad4 ASJ exome

AF:

0.00980

Gnomad4 EAS exome

AF:

0.000101

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000178

Gnomad4 OTH exome

AF:

0.00318

GnomAD4 genome

AF:

0.00677

AC:

1032

AN:

152328

Hom.:

Cov.:

AF XY:

0.00626

AC XY:

466

AN XY:

74498

show subpopulations

Gnomad4 AFR

AF:

0.0222

Gnomad4 AMR

AF:

0.00281

Gnomad4 ASJ

AF:

0.00922

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000265

Gnomad4 OTH

AF:

0.00710

Alfa

AF:

0.00425

Hom.:

Bravo

AF:

0.00794

Asia WGS

AF:

0.00173

AC:

AN:

3478

EpiCase

AF:

0.000600

EpiControl

AF:

0.000474

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:10

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -
Benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Sep 15, 2017	- -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Apr 30, 2012	1729-6C>T in Intron 14 of MYH9: This variant is not expected to have clinical si gnificance because it has been identified in 1.7% (65/3738) of African American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http: //evs.gs.washington.edu/EVS; dbSNP rs9622375). -

not provided

Benign:3

Benign, criteria provided, single submitter	clinical testing	GeneDx	May 04, 2018	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 30, 2024	- -

Autosomal dominant nonsyndromic hearing loss 17

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Kidney disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Genome Diagnostics Laboratory, The Hospital for Sick Children

Mar 01, 2020

- -

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

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Sep 28, 2021

- -

MYH9-related disorder

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.87

CADD

Benign

7.6

DANN

Benign

0.65

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000026

dbscSNV1_RF

Benign

0.0

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