rs7285745

Variant names:

• chr22-36312151-G-A
• rs7285745
• NM_002473.6:c.1626C>T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_002473.6(MYH9):​c.1626C>T​(p.Phe542Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00183 in 1,614,152 control chromosomes in the GnomAD database, including 39 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0094 (26 hom., cov: 32)
  • Exomes 𝑓: 0.0010 (13 hom.)
• Consequence: MYH9 NM_002473.6 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:10
• Conservation: PhyloP100: 0.0720

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]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.49).
• BP6: Variant 22-36312151-G-A is Benign according to our data. Variant chr22-36312151-G-A is described in ClinVar as [Benign]. Clinvar id is 164456.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr22-36312151-G-A is described in Lovd as [Benign].
• BP7: Synonymous conserved (PhyloP=0.072 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00936 (1426/152270) while in subpopulation AFR AF= 0.0322 (1337/41544). AF 95% confidence interval is 0.0307. There are 26 homozygotes in gnomad4. There are 664 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 1426 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH9	NM_002473.6	c.1626C>T	p.Phe542Phe	synonymous_variant	Exon 14 of 41	ENST00000216181.11	NP_002464.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYH9	ENST00000216181.11	c.1626C>T	p.Phe542Phe	synonymous_variant	Exon 14 of 41	1	NM_002473.6	ENSP00000216181.6

Frequencies

GnomAD3 genomes AF: 0.00932 AC: 1418 AN: 152152 Hom.: 26 Cov.: 32

Gnomad AFR AF: 0.0321

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00347

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000385

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.0000943

Gnomad MID AF: 0.00633

Gnomad NFE AF: 0.000162

Gnomad OTH AF: 0.00862

GnomAD3 exomes AF: 0.00245 AC: 617 AN: 251462 Hom.: 8 AF XY: 0.00168 AC XY: 228 AN XY: 135920

Gnomad AFR exome AF: 0.0302

Gnomad AMR exome AF: 0.00243

Gnomad ASJ exome AF: 0.000198

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.000163

Gnomad FIN exome AF: 0.0000462

Gnomad NFE exome AF: 0.000220

Gnomad OTH exome AF: 0.00130

GnomAD4 exome AF: 0.00105 AC: 1530 AN: 1461882 Hom.: 13 Cov.: 36 AF XY: 0.000868 AC XY: 631 AN XY: 727240

Gnomad4 AFR exome AF: 0.0301

Gnomad4 AMR exome AF: 0.00259

Gnomad4 ASJ exome AF: 0.0000765

Gnomad4 EAS exome AF: 0.0000504

Gnomad4 SAS exome AF: 0.000301

Gnomad4 FIN exome AF: 0.0000374

Gnomad4 NFE exome AF: 0.000186

Gnomad4 OTH exome AF: 0.00257

GnomAD4 genome AF: 0.00936 AC: 1426 AN: 152270 Hom.: 26 Cov.: 32 AF XY: 0.00892 AC XY: 664 AN XY: 74468

Gnomad4 AFR AF: 0.0322

Gnomad4 AMR AF: 0.00346

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000386

Gnomad4 SAS AF: 0.000414

Gnomad4 FIN AF: 0.0000943

Gnomad4 NFE AF: 0.000162

Gnomad4 OTH AF: 0.00853

Alfa AF: 0.00402 Hom.: 3

Bravo AF: 0.0107

Asia WGS AF: 0.00289 AC: 10 AN: 3478

EpiCase AF: 0.000273

EpiControl AF: 0.000356

ClinVar

Significance: Benign

Submissions summary: Benign:10

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:4

-

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

May 07, 2012

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Phe542Phe in Exon 14 of MYH9: This variant is not expected to have clinical sig nificance because it does not alter an amino acid residue, is not located within the splice consensus sequence, and has been identified in 2.9% (109/3738) of Af rican American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs7285745). -

-

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

-

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

not provided Benign:4

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jun 12, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

-

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Mar 27, 2018

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. -

Autosomal dominant nonsyndromic hearing loss 17 Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. -

MYH9-related disorder Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.49
CADD	Benign	1.6
DANN	Benign	0.84

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

Other links and lift over

dbSNP: rs7285745; hg19: chr22-36708196;