22-36318044-C-G

Variant names:

• chr22-36318044-C-G
• rs1557539
• NM_002473.6:c.1227+163G>C

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_002473.6(MYH9):​c.1227+163G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.985 in 152,366 control chromosomes in the GnomAD database, including 73,854 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.98 (73854 hom., cov: 34)
• Consequence: MYH9 NM_002473.6 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.05
• Publications: 4 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 -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.96).
• BP6: Variant 22-36318044-C-G is Benign according to our data. Variant chr22-36318044-C-G is described in ClinVar as Benign. ClinVar VariationId is 1278610.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.981 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH9	NM_002473.6	c.1227+163G>C		intron_variant	Intron 11 of 40	ENST00000216181.11	NP_002464.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYH9	ENST00000216181.11	c.1227+163G>C		intron_variant	Intron 11 of 40	1	NM_002473.6	ENSP00000216181.6

Frequencies

GnomAD3 genomes AF: 0.985 AC: 149904 AN: 152248 Hom.: 73794 Cov.: 34

Gnomad AFR AF: 0.975

Gnomad AMI AF: 0.997

Gnomad AMR AF: 0.988

Gnomad ASJ AF: 0.976

Gnomad EAS AF: 1.00

Gnomad SAS AF: 0.991

Gnomad FIN AF: 0.995

Gnomad MID AF: 0.953

Gnomad NFE AF: 0.987

Gnomad OTH AF: 0.981

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

GnomAD4 genome AF: 0.985 AC: 150023 AN: 152366 Hom.: 73854 Cov.: 34 AF XY: 0.985 AC XY: 73360 AN XY: 74510

African (AFR) AF: 0.975 AC: 40528 AN: 41580

American (AMR) AF: 0.989 AC: 15137 AN: 15312

Ashkenazi Jewish (ASJ) AF: 0.976 AC: 3389 AN: 3472

East Asian (EAS) AF: 1.00 AC: 5182 AN: 5184

South Asian (SAS) AF: 0.991 AC: 4787 AN: 4832

European-Finnish (FIN) AF: 0.995 AC: 10569 AN: 10622

Middle Eastern (MID) AF: 0.956 AC: 281 AN: 294

European-Non Finnish (NFE) AF: 0.987 AC: 67166 AN: 68044

Other (OTH) AF: 0.982 AC: 2075 AN: 2114

Alfa AF: 0.987 Hom.: 9194

Bravo AF: 0.984

Asia WGS AF: 0.992 AC: 3451 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Jun 29, 2018

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.96
CADD	Benign	1.6
DANN	Benign	0.50
PhyloP100		-1.1
Mutation Taster		=100/0	polymorphism (auto)

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: rs1557539; hg19: chr22-36714089;