22-36369877-G-A

Variant names:

• chr22-36369877-G-A
• rs6000261
• NM_002473.6:c.-20+17930C>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The NM_002473.6(MYH9):​c.-20+17930C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00512 in 152,248 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.0051 (8 hom., cov: 32)
• Consequence: MYH9 NM_002473.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.797
• Publications: 1 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: G2P, Labcorp Genetics (formerly Invitae)
• macrothrombocytopenia and granulocyte inclusions with or without nephritis or sensorineural hearing loss

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen
• 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 -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00512 (780/152248) while in subpopulation AFR AF = 0.0179 (744/41526). AF 95% confidence interval is 0.0168. There are 8 homozygotes in GnomAd4. There are 352 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
• BS2: High AC in GnomAd4 at 780 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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYH9	NM_002473.6	MANE Select	c.-20+17930C>T		intron	N/A	NP_002464.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYH9	ENST00000216181.11	TSL:1 MANE Select	c.-20+17930C>T		intron	N/A	ENSP00000216181.6
	MYH9	ENST00000685801.1		c.-20+17930C>T		intron	N/A	ENSP00000510688.1
	MYH9	ENST00000955563.1		c.-20+17930C>T		intron	N/A	ENSP00000625622.1

Frequencies

GnomAD3 genomes AF: 0.00506 AC: 770 AN: 152130 Hom.: 8 Cov.: 32

Gnomad AFR AF: 0.0177

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00138

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: 0.0000441

Gnomad OTH AF: 0.00575

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.00512 AC: 780 AN: 152248 Hom.: 8 Cov.: 32 AF XY: 0.00473 AC XY: 352 AN XY: 74434

African (AFR) AF: 0.0179 AC: 744 AN: 41526

American (AMR) AF: 0.00137 AC: 21 AN: 15286

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

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

European-Non Finnish (NFE) AF: 0.0000441 AC: 3 AN: 68022

Other (OTH) AF: 0.00569 AC: 12 AN: 2108

Alfa AF: 0.00996 Hom.: 2

Bravo AF: 0.00575

Asia WGS AF: 0.00260 AC: 9 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	4.6
DANN	Benign	0.63
PhyloP100		0.80
Mutation Taster		=100/0	polymorphism

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: rs6000261; hg19: chr22-36765922;