22-36285338-GA-G

Position:

• chr22-36285338-GA-G

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_Strong BS1 BS2

The NM_002473.6(MYH9):​c.5275-10del variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000413 in 1,606,556 control chromosomes in the GnomAD database, including 2 homozygotes. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0023 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00021 (2 hom.)
• Consequence: MYH9 NM_002473.6 splice_polypyrimidine_tract, intron
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5
• Conservation: PhyloP100: 0.0190

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 -16 ACMG points.

• BP6: Variant 22-36285338-GA-G is Benign according to our data. Variant chr22-36285338-GA-G is described in ClinVar as [Likely_benign]. Clinvar id is 179621.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0023 (351/152288) while in subpopulation AFR AF= 0.00823 (342/41550). AF 95% confidence interval is 0.00751. There are 0 homozygotes in gnomad4. There are 159 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 351 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MYH9	NM_002473.6	c.5275-10del		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	c.5275-10del		splice_polypyrimidine_tract_variant, intron_variant		1	NM_002473.6	ENSP00000216181	P1

Frequencies

GnomAD3 genomes AF: 0.00231 AC: 352 AN: 152170 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00828

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000327

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: 0.00144

GnomAD3 exomes AF: 0.000602 AC: 148 AN: 245908 Hom.: 0 AF XY: 0.000428 AC XY: 57 AN XY: 133278

Gnomad AFR exome AF: 0.00887

Gnomad AMR exome AF: 0.0000578

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000164

GnomAD4 exome AF: 0.000215 AC: 312 AN: 1454268 Hom.: 2 Cov.: 32 AF XY: 0.000185 AC XY: 134 AN XY: 723714

Gnomad4 AFR exome AF: 0.00842

Gnomad4 AMR exome AF: 0.000157

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.000331

GnomAD4 genome AF: 0.00230 AC: 351 AN: 152288 Hom.: 0 Cov.: 33 AF XY: 0.00214 AC XY: 159 AN XY: 74462

Gnomad4 AFR AF: 0.00823

Gnomad4 AMR AF: 0.000327

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: 0.00142

Alfa AF: 0.00139 Hom.: 0

Bravo AF: 0.00264

Asia WGS AF: 0.000577 AC: 2 AN: 3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:2

Benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Jul 28, 2016	- -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Feb 20, 2014	5275-10delT in intron 37 of MYH9: This variant is not expected to have clinical significance because it has been identified in 1.1% (47/4264) of African America n chromosomes by the NHLBI Exome Sequencing Project (http://evs.gs.washington.ed u/EVS/). -

not provided Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 12, 2022	See Variant Classification Assertion Criteria. -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 25, 2024	- -

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

Aug 25, 2021

- -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		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: rs552643559; hg19: chr22-36681384;