rs368125656

Positions:

• chr22-36285785-C-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_Strong BP6 BS2

The NM_002473.6(MYH9):​c.5151-4G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000467 in 1,607,036 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.000059 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000045 (0 hom.)
• Consequence: MYH9 NM_002473.6 splice_region, intron
• Scores: Splicing: ADA: 0.00002276
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:5
• Conservation: PhyloP100: -1.23

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 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -9 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.7).
• BP6: Variant 22-36285785-C-T is Benign according to our data. Variant chr22-36285785-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 44568.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=4, Uncertain_significance=1}.
• BS2: High AC in GnomAd4 at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MYH9	NM_002473.6	c.5151-4G>A		splice_region_variant, intron_variant		ENST00000216181.11	NP_002464.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MYH9	ENST00000216181.11	c.5151-4G>A		splice_region_variant, intron_variant		1	NM_002473.6	ENSP00000216181.6

Frequencies

GnomAD3 genomes AF: 0.0000592 AC: 9 AN: 152022 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000724

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

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: 0.0000588

Gnomad OTH AF: 0.000480

GnomAD3 exomes AF: 0.0000382 AC: 9 AN: 235510 Hom.: 0 AF XY: 0.0000548 AC XY: 7 AN XY: 127728

Gnomad AFR exome AF: 0.0000679

Gnomad AMR exome AF: 0.0000301

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000338

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000476

Gnomad OTH exome AF: 0.000173

GnomAD4 exome AF: 0.0000454 AC: 66 AN: 1455014 Hom.: 0 Cov.: 32 AF XY: 0.0000539 AC XY: 39 AN XY: 723420

Gnomad4 AFR exome AF: 0.000150

Gnomad4 AMR exome AF: 0.0000228

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000818

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000469

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome AF: 0.0000592 AC: 9 AN: 152022 Hom.: 0 Cov.: 33 AF XY: 0.0000404 AC XY: 3 AN XY: 74298

Gnomad4 AFR AF: 0.0000724

Gnomad4 AMR AF: 0.0000654

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000588

Gnomad4 OTH AF: 0.000480

Alfa AF: 0.000102 Hom.: 0

Bravo AF: 0.0000529

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:5

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:1 Benign:3

Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jul 01, 2023	MYH9: BP4 -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Oct 16, 2014	- -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 14, 2023	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 26, 2021	- -

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Mar 09, 2013

5151-4G>A in intron 36 of MYH9: This variant is not expected to have clinical si gnificance because it is not located within the conserved splice consensus seque nce and has been identified in 0.02% (1/4402) of African American chromosomes fr om a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washi ngton.edu/EVS/) -

MYH9-related disorder Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

May 12, 2021

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.70
CADD	Benign	1.3
DANN	Benign	0.74

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000023
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

Other links and lift over

dbSNP: rs368125656; hg19: chr22-36681831;