NM_002473.6:c.*1099A>T

Variant names:

• chr22-36281569-T-A
• rs886057471
• NM_002473.6:c.*1099A>T

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_Strong BS1_Supporting BS2

The NM_002473.6(MYH9):​c.*1099A>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000048 in 229,298 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 Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000053 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000039 (0 hom.)
• Consequence: MYH9 NM_002473.6 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:2
• Conservation: PhyloP100: 0.0630
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• autosomal dominant nonsyndromic hearing loss 17

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• macrothrombocytopenia and granulocyte inclusions with or without nephritis or sensorineural hearing loss

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, ClinGen, Labcorp Genetics (formerly Invitae), Orphanet
• May-Hegglin anomaly

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
• autosomal dominant nonsyndromic hearing loss

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -9 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.56).
• BS1: Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.0000525 (8/152236) while in subpopulation EAS AF = 0.00116 (6/5188). AF 95% confidence interval is 0.000503. There are 0 homozygotes in GnomAd4. There are 6 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
• BS2: High AC in GnomAd4 at 8 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002473.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYH9	NM_002473.6	MANE Select	c.*1099A>T		3_prime_UTR	Exon 41 of 41	NP_002464.1	P35579-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYH9	ENST00000216181.11	TSL:1 MANE Select	c.*1099A>T		3_prime_UTR	Exon 41 of 41	ENSP00000216181.6	P35579-1
	MYH9	ENST00000685801.1		c.*1099A>T		3_prime_UTR	Exon 42 of 42	ENSP00000510688.1	A0A8I5KWT8
	MYH9	ENST00000955568.1		c.*1099A>T		3_prime_UTR	Exon 42 of 42	ENSP00000625627.1

Frequencies

GnomAD3 genomes AF: 0.0000526 AC: 8 AN: 152116 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00115

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.0000389 AC: 3 AN: 77062 Hom.: 0 Cov.: 0 AF XY: 0.0000281 AC XY: 1 AN XY: 35538

African (AFR) AF: 0.00 AC: 0 AN: 3634

American (AMR) AF: 0.00 AC: 0 AN: 2350

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 4858

East Asian (EAS) AF: 0.0000923 AC: 1 AN: 10836

South Asian (SAS) AF: 0.00 AC: 0 AN: 664

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 482

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 466

European-Non Finnish (NFE) AF: 0.0000422 AC: 2 AN: 47362

Other (OTH) AF: 0.00 AC: 0 AN: 6410

GnomAD4 genome AF: 0.0000525 AC: 8 AN: 152236 Hom.: 0 Cov.: 33 AF XY: 0.0000806 AC XY: 6 AN XY: 74438

African (AFR) AF: 0.00 AC: 0 AN: 41526

American (AMR) AF: 0.00 AC: 0 AN: 15298

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00116 AC: 6 AN: 5188

South Asian (SAS) AF: 0.000207 AC: 1 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10598

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68008

Other (OTH) AF: 0.00 AC: 0 AN: 2112

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

Asia WGS AF: 0.00115 AC: 4 AN: 3478

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Autosomal dominant nonsyndromic hearing loss 17 (1)
-	1	-	MYH9-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.56
CADD	Benign	7.8
DANN	Benign	0.82
PhyloP100		0.063

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

Other links and lift over

dbSNP: rs886057471; hg19: chr22-36677615;